Hawaii in October might just be your ideal destination. Offering an exceptional balance of tranquility and adventure, this Pacific gem truly sparkles in the autumn months, inviting you to immerse yourself in its soothing rhythm and stunning landscapes.
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In this guide, we cover everything you need to know about October in Hawaii:
- Weather Overview October
- Packing and Outfit Tips
- Trade Winds
- Weather Details | All Islands
- Swimming
- Crowds/How Busy
- Things to Do
We love visiting Hawaii in October. Usually, we go to the Big Island or Oahu during this time. It’s a great month because the summer crowds are usually gone and the winter crowds haven’t arrived yet.
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Additionally, the weather is almost perfect. However, there are still some things you need to know about the weather on some islands. More about that later.
We will provide a comprehensive guide covering all you need to know, including the weather conditions, crowd status, and even packing tips for your Hawaiian getaway.
Is October a Good Time?
Hawaii is a destination that can be visited all year round, but each month has its own unique characteristics. So, is October a good time to visit Hawaii?
October is a fantastic time to visit Hawaii. The weather is typically balmy during this month, making it perfect for enjoying a sunny autumn getaway with your loved ones. To enjoy fewer crowds and immerse in nature with peace and quiet, a visit in mid-October is highly recommended.
Our experience: We have been to Hawaii (usually the Big Island) five times in the month of October, and the weather was always excellent and sunny! Only in 2021, the weather was not perfect. It was really windy, and some days it was cloudy on the Kona side. But again, that was an exception and surprised us. Otherwise, our October trips have always been superb.
What Part of Hawaii Is Best To Visit in October?
The Big Island is usually considered the best part of Hawaii to visit in October. On average, you’ll experience lesser rainfall compared to the other islands. The diversity of flora and fauna, and the varied topography, make October a great time to visit the Big Island.
Every Hawaiian Island is incredible to visit, even in October. What distinguishes the Big Island in October is the potential for surfing, witnessing an active volcano, snorkeling, and enjoying picturesque hikes.
Weather Overview
Different islands may experience slightly varying conditions. So, what is the overall weather like in October in Hawaii?
Hawaii’s weather in October offers a beautiful blend of summer warmth and fall freshness, making it a splendid time to enjoy the tropics. October is the tail-end of the dry season, marking the onset of the wet season that officially begins in November.
However, the rainfall is gradual and far from the peak levels of the winter months, offering plenty of sunny days and warm temperatures. It definitely won’t spoil your trip.
During October in Hawaii, the weather is pleasant with summer-like conditions. The high temperatures range from a low of 80°F (27°C) to a high of 84°F (29°C). The average rainfall ranges from 1.1 in. (27.94 mm) in Maui to 4.5 in. (114.3 mm) in Kauai.
On average, wind speed can be over 11mph (17.70 kph).
- Average high temperatures: 85°F (29°C)
- Average low temperatures: 70°F (21°C)
- Sea temperature: 79°F (26°C)
- Daylight hours: 11 hours
- Rainfall: 2-3 inches (Varies across islands)
We were in Oahu recently in October, and the weather was great. We had sunny days for the most part of our trip. Light sprinkling sometimes in the morning or evening but so little that you can be walking to/from dinner just fine in a dress and sandals and not even need a sweater.
Rain
October is the start of Hawaii’s rainy season, which lasts until April. As a result, you may experience a few mild rainstorms or rain showers during your visit to the islands.
However, it depends on the island: If you are traveling to the Big Island’s Kohala coast, for example, you will likely experience less rain than what you would see on Kauai.
Hurricanes
October also marks the start of the hurricane season over the Pacific Ocean. But don’t worry; Hawaii usually doesn’t get hit by many big storms. Still, there’s a small chance you might see rougher weather while you’re on your trip.
If a storm does come close, you might have to deal with more rain and wind than usual.
So, if you’re planning to visit Hawaii in October, it’s still a good idea to keep an eye on the weather reports for any storms that might be on the way.
Packing and Outfit Tips | What to Wear
When packing for your October trip to Hawaii, you can stick to your usual tropical vacation wardrobe. Despite being autumn, Hawaii doesn’t experience a typical fall season, so you can still look forward to plenty of hot and sunny days.
In Hawaii, you wear casual clothing for any daytime exploration. For instance, shorts and t-shirts are suitable for sightseeing. We suggest packing on moisture-wicking, fast-drying clothes as they’ll dry swiftly if you’re surprised by a rain shower, and they evaporate sweat more rapidly. Also, it’s better to avoid darker shades on hot, sunny days.
During October in Hawaii, men wear shorts, an aloha or tee shirt, and flip-flops. Women often opt for a sundress and sandals. Additionally, pack a lightweight sweater, one pair of long pants, and a raincoat.
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Here’s a quick packing list to guide you:
- Shorts: Keep it breezy with your favorite pairs.
- Lightweight clothes: Think t-shirts, tank tops, and breathable fabrics to keep cool.
- Sandals: Essential for the beach and casual exploring.
- Loose dresses: A great option for comfort and a cool feel.
- Poncho or raincoat: It can rain in October, and in a tropical climate, occasional rain is a given.
- Hats: To protect you from the Hawaiian sun.
- Sunglasses: Don’t forget these for all your outdoor adventures.
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While the days are sunny and warm, the nights can be a bit cooler. The shift from hot days to cooler nights might surprise you. Therefore, adding a few warmer items to your luggage could come in handy:
- Lightweight sweater or sweatshirt: Something to keep you cozy during cooler evenings.
- Long pants: One pair should be enough for those chillier nights.
Remember, the key is to pack light and comfortably. With this list in hand, you’ll be ready to soak up the Hawaiian sun in October!
Trade Winds
In Hawaii, these winds blow predominantly from the northeast and are a significant feature of the islands’ weather. They bring cooler, moist air from over the ocean, which can moderate temperatures and increase humidity.
The general impact of trade winds on Hawaii travelers:
- Cooling Effect: The trade winds provide natural air conditioning across the islands, helping to temper the tropical heat. If you’re visiting beaches on the windward (eastern) side of the islands, the breeze can make the warmth more comfortable.
- Rainfall: The winds pick up moisture as they travel over the ocean and when they hit the mountains, they rise and cool, causing frequent rain showers on the windward sides of the islands. This rain is usually light and brief, but it contributes to the lush, green landscapes Hawaii is known for.
- Ocean Conditions: Trade winds can affect ocean conditions, making the windward side of the islands rougher and the leeward side (western side) more sheltered and calm. This pattern can influence where you might want to plan water activities like swimming, snorkeling, or boating.
Trade Winds in October
In October, trade winds in Hawaii tend to occur less frequently than in the summer months. They usually blow about half the month, giving way to lighter, variable winds for the other half. However, the effect remains the same – cooling the air, driving brief showers, and influencing ocean conditions.
Less frequent trade winds in October can lead to warmer and drier conditions overall, especially on the leeward side of the islands. This may be a factor to consider when planning activities and choosing which parts of the islands to visit.
As with any aspect of weather, conditions can vary from year to year and day to day, so it’s always a good idea to check the local forecast when planning your activities in Hawaii.
Weather Details for the Islands
While the average high temperatures are ideal during October in Hawaii, there are other significant weather patterns that you’ll want to be mindful of. Each island in Hawaii has unique weather characteristics in October; let’s explore some of these.
Big Island
- Average high: 85°F (29°C)
- Average low: 70°F (21°C)
- Average rainfall: 8.3 inches (Hilo), 0.7 inches (Kona)
The Big Island is known for its weather diversity, featuring a warm and dry climate during October. The weather here is generally more pleasant compared to other Hawaiian islands in October.
Rain: The average rainfall in October ranges from 2.1 in. (53.34 mm) to 2.6 in. (66.04 mm). Although it rains, it’s not an all-day affair. There are numerous fun outdoor activities to enjoy during your Hawaii visit in October, as the rain usually falls in shorter intervals rather than throughout the day.
The north and east sides, like Hilo, experience the windward climate, making them rainier, which also contributes to their lush beauty with a stunning green landscape. In contrast, the south and west sides of the islands are leeward, which means they are drier. The most popular spot on the drier side is Kailua-Kona.
Like other Hawaiian islands, wind on the Big Island can be noticeable at certain times of the day, averaging over 11 mph (17.70 kph). Days are slightly shorter, and nights are a tad cooler, so an early start to your day outside would be a good idea. The average temperature still hovers between 81–84F (27–29C).
Oahu
- Average high: 85°F (29°C)
- Average low: 70°F (21°C)
- Average rainfall: 2.3 inches
Oahu is famed for its harmonious blend of urban and tropical landscapes. Like other Hawaiian Islands, it’s warm and welcoming in October. The average high temperature ranges between 82–84 F (28–29C), with abundant sunshine for most of the day.
Rain: Oahu experiences a moderate amount of rain in October. The averages range from 1.7 in. (43.18 mm) to 2.2 in. (55.88 mm). Like other Hawaiian islands, the rain is sporadic and hurricanes are a rare occurrence.
Rainfall begins to increase, especially on the windward (northeast) side, but the leeward (southwest) coast generally stays drier.
Kauai
- Average high: 84°F (29°C)
- Average low: 73°F (23°C)
- Average rainfall: 3.8 inches (Lihue)
Kauai is usually associated with its lush tropical landscape, often considered the greenest island and a paradise for hikers.
“The Garden Isle,” Kauai, has temperatures similar to Oahu and Maui, but being the oldest Hawaiian island, its topography influences its weather pattern. The mountainous interior and the north shore get more rain, while the south shore stays relatively dry.
Rain: October sees a fair amount of rain in Kauai, especially on the north side of the island, with showers throughout the day.
The west and south parts receive less rain. The average rainfall on Kauai ranges between 3.3 in. (83.82 mm) to 4.5 in. (114.3 mm).
Even though Kauai gets more rain than the other islands, it remains very comfortable for much of the day. The average highs range from 80 F to 82 F (27–28C), making it an ideal place for a host of adventurous activities in October.
Princeville and Hanalei are on the wetter, windward side of Kauai, while Poipu and Waimea are on the drier, leeward side.
Maui
- Average high: 86°F (30°C)
- Average low: 70°F (21°C)
- Average rainfall: 1.4 inches (Kihei)
Maui is a wonderful island to visit in October. The average temperature is very consistent as it barely fluctuates throughout the month. 83 F to 84 F (28C to 29C) is the typical high temp on average in Maui.
Rain: Maui receives minimal rain. The averages are ranging from 1.1 in. (27.94 mm) to 1.6 in. (40.64 mm). This lack of rain makes it ideal for outdoor activities that require prolonged exposure without the need for shelter from the rain.
Maui also experiences similar weather factors as the other Hawaiian Islands, such as:
- Wind
- Daylight
- Humidity.
In Maui, the windward side includes Hana and Paia, while the leeward side features Lahaina and Kihei. During this month, It starts getting rainier, especially in the lush Hana and Upcountry areas, but the resort areas of Kihei, Wailea, Lahaina, and Ka’anapali usually enjoy more sun.
Water Conditions | Beaches | Swimming
Hawaii’s unique water temperature sets it apart. The ocean water in Hawaii is cooler at the bottom and warms up as you go higher.
This cooler water mixes with the warmer water at the top, making it unfavorable for hurricanes. As a result, hurricanes are rare in Hawaii.
It’s a great place for water activities year-round. In October, you can have a splendid time indulging in activities like:
- Snorkeling
- Swimming
- Surfing
- Diving
- Relaxing at the beach.
The water temperature remains very pleasant during October. The average temperature in the Hawaiian Islands ranges between 78°F and 79°F (25–26°C). Although it doesn’t change much from island to island, minor differences may be encountered if you visit in early October rather than late October.
As temperatures average a few degrees less in November, if you head to the beach in late October, you might experience slightly cooler water.
The ocean may be a bit choppier compared to the summer months. That means, the waves can be more intense, especially during late October.
Can You Swim in October in Hawaii?
You can absolutely swim in October in Hawaii if you’re careful. Choose an area with less open water, like a bay or cove. This protection will help insulate you from the waves, which can be slightly larger during October. October is an excellent time to swim if you choose the right spots.
How Busy/Crowds/Rates in Hawaii in October
Hawaii doesn’t get too crowded during October. This is especially true compared to the peak tourist periods in summer and winter.
Crowds: October presents a great opportunity to enjoy Hawaii’s many wonders with fewer people around. Beaches, hiking trails, and attractions are generally less crowded throughout the month. This gives you more freedom and space to explore, making your vacation more relaxed and enjoyable.
If you want to avoid even the slightest hint of a crowd, consider visiting spots away from the popular hotel districts or plan your day to start early at high-traffic attractions.
Hotel and Airfare: Hotel rates are well below the annual average in October. We often find a three-star hotel for about $200-$300 per night. That’s significantly less compared to the peak seasons in winter and summer. Flights and car rental prices are more difficult to predict, but generally speaking, October is one of the cheapest times of the year.
Things to Do in October
October in Hawaii is an excellent time for outdoor activities. With cooler temperatures and fewer crowds, there are plenty of exciting activities for you to indulge in. Let’s explore the fantastic options available on each of the Hawaiian Islands in October.
Big Island
On the Big Island, October provides a golden opportunity to explore the majestic Hawaii Volcanoes National Park with fewer tourists around. Here, you can witness the amazing volcanic landscapes and learn about the geological history of the island. A hike up to the Mauna Kea Summit is another recommended activity. This highest point in Hawaii offers breathtaking stargazing opportunities.
- Explore Hawaii Volcanoes National Park
- Hike Mauna Kea Summit
- Stargazing at Mauna Kea Observatory
Oahu
In Oahu, enjoy the warm October sun on the iconic Waikiki Beach or go surfing at the North Shore. The less crowded beaches give you the perfect opportunity to learn surfing or simply relax by the shore. Take a historical trip to Pearl Harbor or hike up the Diamond Head Crater for panoramic views of Honolulu.
- Sunbathing at Waikiki Beach
- Surfing at North Shore
- Visit Pearl Harbor
- Hike Diamond Head Crater
Kauai
For nature lovers, Kauai is a paradise in October. Explore the Na Pali Coast State Wilderness Park with its towering cliffs and cascading waterfalls. Take a boat tour along the Wailua River and visit the Fern Grotto. Don’t forget to explore the Waimea Canyon, often referred to as the “Grand Canyon of the Pacific.”
- Hiking in Na Pali Coast State Wilderness Park
- Boat tour on Wailua River
- Explore the Fern Grotto
- Visit Waimea Canyon
Maui
Maui offers a mix of beach and mountain activities in October. Snorkel at the Molokini Crater, hike in the lush Iao Valley, or drive along the scenic Road to Hana. With whales starting to arrive in October, you might also get a chance to spot these magnificent creatures off the coast.
- Snorkeling at Molokini Crater
- Hiking in Iao Valley
- Scenic drive on the Road to Hana