93 Banyan Dr, Hilo, Hawaii, 96720, United States
Contact: +1 (888) 605-1350
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Grand Naniloa Hotel Hilo: Month-by-Month Weather Guide
Trying to decide what weather to expect at Grand Naniloa Hotel Hilo? This in-depth guide breaks down Hilo’s month-by-month rainfall, temperatures, trade winds, wetter periods, and more comfortable travel windows—so you can plan realistically for a Hilo Bay stay. Whether you are packing for showers, timing pool and golf days, planning nearby outdoor activities, or choosing between spring, summer, fall, and winter travel, this weather guide shows what each month is likely to feel like.
Planning your stay guide
Wondering what the weather is like by month at Grand Naniloa Hotel Hilo? This guide breaks down what each month typically feels like in Hilo, Hawaii's Big Island—including average temperatures in °F, rainfall, humidity, and what that means for waterfall hikes, volcano tours, ocean swimming, and exploring the lush east side of the island.
Quick takeaway:
Grand Naniloa Hotel Hilo sits in one of Hawaii's rainier regions—but that rain creates the waterfalls, rainforests, and lush scenery that make Hilo special. Temperatures stay comfortable year-round, typically between 70–84°F for daytime highs. The driest months are often June–August (though rain is still possible), while November–March tend to see more frequent showers.
Hilo note: Rain often comes in passing showers rather than all-day downpours—you can still enjoy activities between showers, and the trade winds keep humidity more comfortable than you might expect in a tropical climate.
Grand Naniloa Hotel Hilo sits in one of Hawaii's rainier regions—but that rain creates the waterfalls, rainforests, and lush scenery that make Hilo special. Temperatures stay comfortable year-round, typically between 70–84°F for daytime highs. The driest months are often June–August (though rain is still possible), while November–March tend to see more frequent showers.
Hilo note: Rain often comes in passing showers rather than all-day downpours—you can still enjoy activities between showers, and the trade winds keep humidity more comfortable than you might expect in a tropical climate.
Most comfortable temps: ~70–84°F year-round
Driest stretch: Jun–Aug (relatively speaking)
Rainier months: Nov–Mar (lush scenery peak)
Sweet spot: Spring & fall shoulder seasons
Use the month-by-month cards below to choose the best timing for your trip style: waterfall adventures, volcano exploration, ocean activities, or quieter rates—without guessing what Hilo weather really means.
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Explore the hotel
Continue planning your stay at Grand Naniloa Hotel Hilo with these quick guides. Explore Room categories including oceanfront options, browse dining at Ka Lihikai and drinks at Hula Lounge Lobby Bar, and learn about pools, golf, and nearby Big Island attractions—so you can book the best experience for your Hilo, Hawaii adventure.
Grand Naniloa Hotel Hilo Weather by Month (Quick Overview)
This quick chart helps you compare months at a glance for Grand Naniloa Hotel Hilo on the Big Island's east side. Use it to plan for comfortable temperatures, rainfall patterns, and the best conditions for waterfall hikes, Volcanoes National Park tours, and ocean swimming at nearby beaches.
| Month | Typical temps (°F) | Rain & conditions | Best for |
|---|---|---|---|
| Jan | High ~79–81°F • Low ~63–66°F | Rainier month; passing showers common | Lush waterfalls + whale season begins |
| Feb | High ~79–81°F • Low ~63–66°F | Still rainy; excellent waterfall flow | Peak whale watching + rainforest hikes |
| Mar | High ~79–82°F • Low ~64–67°F | Rain begins tapering; greener landscapes | Spring blooms + volcano tours |
| Apr | High ~80–83°F • Low ~65–68°F | Transitioning drier; pleasant conditions | Outdoor adventures + fewer crowds |
| May | High ~81–84°F • Low ~66–69°F | Drier trend continues; comfortable | Beach time + snorkeling improves |
| Jun | High ~82–84°F • Low ~67–70°F | Driest period begins; more sunshine | Ocean activities + family trips |
| Jul | High ~83–85°F • Low ~68–71°F | Summer dry spell; reliable weather | Peak beach season + festivals |
| Aug | High ~83–85°F • Low ~68–71°F | Still relatively dry; warm water | Swimming + snorkeling peak |
| Sep | High ~83–85°F • Low ~68–71°F | Rain increases slightly; still pleasant | Shoulder season value + activities |
| Oct | High ~82–84°F • Low ~67–70°F | More frequent showers return | Waterfalls recharge + fall colors |
| Nov | High ~80–83°F • Low ~65–68°F | Rainier pattern; lush greenery | Dramatic waterfalls + quieter hotels |
| Dec | High ~79–81°F • Low ~64–67°F | Wet season; passing tropical showers | Holiday trips + rainforest beauty |
Month-by-Month Weather at Grand Naniloa Hotel Hilo
These month cards translate Hilo's weather into real planning for Grand Naniloa Hotel Hilo: what it feels like on the east side of the Big Island, how to time waterfall hikes and volcano tours, and what to expect for ocean activities and rainforest exploration.
Weather by month
January
One of Hilo's rainier months—expect passing showers, lush green landscapes, powerful waterfalls, and the beginning of humpback whale season offshore.
Typical tempsHigh ~79–81°F • Low ~63–66°F
Rain patternFrequent passing showers; pack layers
Ocean conditionsCan be rougher; check local forecasts
Best forWaterfall photography + whale watching
Weather by month
February
Still rainy with excellent waterfall flow—perfect for rainforest hikes and peak humpback whale watching from the Hilo coast and nearby lookouts.
Typical tempsHigh ~79–81°F • Low ~63–66°F
WaterfallsFlowing at their fullest
WildlifePeak whale season continues
Best forNature lovers + rainy-season beauty
Weather by month
March
Rain begins tapering and spring blooms appear—great for Volcanoes National Park tours, botanical gardens, and exploring Hilo's farmers market.
Typical tempsHigh ~79–82°F • Low ~64–67°F
Rain feelStill present but improving
ExcursionsBetter conditions for volcano hikes
Best forSpring blooms + cultural events
Weather by month
April
Transitioning toward drier weather with pleasant conditions—ideal for outdoor adventures, Mauna Kea stargazing tours, and exploring black sand beaches.
Typical tempsHigh ~80–83°F • Low ~65–68°F
CrowdsFewer visitors than winter months
ActivitiesGreat for hiking + sightseeing
Best forShoulder season balance
Weather by month
May
Drier trend continues with comfortable temperatures—excellent for beach time, snorkeling at Richardson Beach Park, and enjoying the hotel pool.
Typical tempsHigh ~81–84°F • Low ~66–69°F
Ocean feelWarming up; better swimming conditions
SunshineMore consistent sunny periods
Best forPre-summer trips + value pricing
Weather by month
June
Driest period begins with more reliable sunshine—perfect for family beach days, ocean swimming, and exploring tide pools along the Hilo coast.
Typical tempsHigh ~82–84°F • Low ~67–70°F
Rain patternLess frequent (though still possible)
Water tempComfortable for extended swimming
Best forSummer starts + family vacations
Weather by month
July
Summer dry spell with reliable weather—great for Merrie Monarch-area cultural events (if visiting for summer festivals), beach time, and golf at nearby courses.
Typical tempsHigh ~83–85°F • Low ~68–71°F
SunshineMost consistent of the year
Ocean conditionsCalm and clear for snorkeling
Best forPeak beach season + outdoor dining
Weather by month
August
Still relatively dry with warm ocean temperatures—ideal for swimming, snorkeling, and extended stays exploring the Big Island's diverse landscapes.
Typical tempsHigh ~83–85°F • Low ~68–71°F
Water feelWarmest of the year
ActivitiesPeak conditions for ocean sports
Best forLate summer getaways + snorkeling
Weather by month
September
Rain increases slightly but still pleasant overall—great shoulder season with good value, fewer crowds, and comfortable conditions for most activities.
Typical tempsHigh ~83–85°F • Low ~68–71°F
Rain feelMore showers than summer but manageable
CrowdsLighter than peak summer
Best forShoulder season value + flexibility
Weather by month
October
More frequent showers return as waterfalls begin recharging—beautiful time for rainforest hikes and enjoying Hilo's lush, tropical scenery.
Typical tempsHigh ~82–84°F • Low ~67–70°F
WaterfallsStarting to flow stronger again
FoliageRich greens return to landscapes
Best forNature photography + quieter stays
Weather by month
November
Rainier pattern with lush greenery everywhere—dramatic waterfalls, quieter hotels, and excellent conditions for volcano tours and rainforest exploration.
Typical tempsHigh ~80–83°F • Low ~65–68°F
Rain feelFrequent passing showers
CrowdsLighter before holiday season
Best forWaterfall season + lower rates
Weather by month
December
Wet season with passing tropical showers—perfect for holiday trips featuring rainforest beauty, cozy evenings at the hotel, and dramatic coastal scenery.
Typical tempsHigh ~79–81°F • Low ~64–67°F
WaterfallsFull flow; stunning photo opportunities
Holiday feelFestive atmosphere in Hilo town
Best forWinter escapes + rainforest scenery
What to Pack for Grand Naniloa Hotel Hilo (By Weather)
Packing for Grand Naniloa Hotel Hilo means planning for Hilo's tropical rain patterns and comfortable year-round temperatures. The key is layering and rain gear—no matter the season. Rule of thumb: June–September is drier with more sunshine, while November–March brings more rain and lush scenery.
Drier months (often Jun–Sep)
- Light rain jacket or windbreaker (showers still possible)
- Reef-safe sunscreen + sunglasses + hat
- Swimwear for hotel pool and nearby beaches
- Hiking shoes for volcano and waterfall trails
- Light layers for air-conditioned spaces and evenings
- Water bottle for staying hydrated during activities
Rainier months (often Nov–Mar)
- Waterproof rain jacket or poncho (essential)
- Quick-dry clothing and moisture-wicking layers
- Water-resistant footwear for wet trails
- Umbrella for walking around Hilo town
- Dry bag for electronics and valuables
- Warm layer for cooler evenings (light fleece works)
Pro tip: Pack your rain gear in your carry-on—Hilo showers can arrive any time of year, and you'll want to be ready from day one.
The rain is what makes Hilo's waterfalls spectacular and the rainforests so lush, so embrace it as part of the experience!
FAQ: Grand Naniloa Hotel Hilo Weather by Month
What month has the best weather at Grand Naniloa Hotel Hilo?
Many visitors prefer June through August, when Hilo typically sees its driest weather with more consistent sunshine—though rain is still possible. These months offer the best balance of comfortable temperatures (around 82–85°F) and lower rainfall for beach activities and outdoor exploration.
Does it rain every day in Hilo?
Not necessarily all-day rain, but Hilo does see frequent passing showers throughout the year, especially from November through March. Many showers are brief—often lasting just 15-30 minutes—and you can still enjoy activities between rain bursts. The rain is what creates Hilo's famous waterfalls and lush rainforests.
What's the rainiest time of year in Hilo?
November through March typically sees the most rainfall, with January and February often being the wettest months. However, this is also when waterfalls are at their most spectacular and the landscape is incredibly green—making it beautiful for photography and nature lovers who don't mind rain gear.
Is Grand Naniloa Hotel Hilo still enjoyable during rainy months?
Absolutely. The hotel offers comfortable indoor spaces including Ka Lihikai restaurant and Hula Lounge Lobby Bar, plus the pool and golf course nearby. Rain often comes in passing showers, so you can still explore between storms. Many guests specifically visit during rainy season to see Hilo's waterfalls at peak flow and experience the lush rainforest scenery that makes the east side of the Big Island so special.
How does Hilo weather compare to Kona on the Big Island?
Hilo (east side) is much rainier than Kona (west side), receiving roughly 10 times more annual rainfall. This rain creates Hilo's stunning waterfalls, tropical rainforests, and lush botanical gardens. Kona tends to be sunnier and drier year-round. Both sides have comfortable temperatures, but if you prefer drier weather, consider splitting your Big Island trip between both coasts.
What's the ocean temperature like at beaches near Grand Naniloa Hotel Hilo?
Ocean temperatures near Hilo stay comfortable year-round, typically ranging from 75–77°F in winter to 79–81°F in summer. Nearby beaches like Richardson Beach Park and Carlsmith Beach Park offer good swimming and snorkeling, though ocean conditions can be rougher during winter months—always check local forecasts.
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