Middle of the drier season · Weather & things to do
Big Island in July
Little changes in Big Island from June: highs stay near 57°F (14°C), lows near 43°F (6°C), and about 4.7 in (120 mm) of rain falls.
At 71/100 for comfort (the top score of the year), it's one of the best months to visit.
- Avg high
- 57°F (14°C)
- Avg low
- 43°F (6°C)
- Rain
- 4.7 in (120 mm)
- Humidity
- 81%
- Cloud cover
- 51%
- Daylight
- ~13 h 04 min
- Comfort score
- 71/100 · Good
What July feels like
Expect mild afternoons around 57°F (14°C), good for long walks.
Nights cool to an average low of 43°F (6°C).
Rain is a real factor, with about 4.7 in (120 mm) across the month.
Plan around July
July is one of Big Island's best months on the climate data.
- Comfort holds steady from June (69 → 71/100).
- July sits inside the Apr – Oct window our Hawaii Paradise route recommends.
What to pack for July
- A warm layer for eveningsnights drop to 43°F
- Rain jacket and waterproof shoesfrequent rain
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Big Island in July
With conditions on your side, the picks below favor time outside.
Kīlauea Iki Trail
4-mile loop through rainforest and across a still-steaming crater floor.
Why now July scores 71/100 for comfort, good conditions for being outside.
The Rim at Volcano House
Park lodge dining room with windows over Halemaʻumaʻu crater.
Why now Highs near 57°F and 4.7 in of monthly rain make this an easy outdoor pick.
Punaluʻu Black Sand Beach
Jet-black sand beach where green sea turtles haul out to rest.
Why now One to do outside while the weather is on your side.
Hawaiʻi Volcanoes National Park
Walk crater rims, steam vents and lava tubes around active Kīlauea.
Greenwell Farms
Family Kona coffee farm with free tours and tastings.
Nearby in July
- Maui in July~97 mi · highs 72°F, 1.3 in rain · 8°C (15°F) warmer by day, drier
- Kailua & Lanikai in July~185 mi · highs 80°F, 1.1 in rain · 13°C (23°F) warmer by day, drier
- Waikiki in July~185 mi · highs 82°F, 1.6 in rain · 14°C (25°F) warmer by day, drier
- Oahu in July~200 mi · highs 80°F, 1.6 in rain · 13°C (23°F) warmer by day, drier
NASA POWER 2001–2025 monthly averages on a ~50 km grid, temperatures adjusted from the grid cell's ~1,145 m to Big Island's ~2,652 m elevation (standard lapse rate). Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Big Island in July: quick answers
Is July a good time to visit Big Island?
Yes. On the climate data it's one of the best months, scoring 71/100. Expect highs of 57°F (14°C) and 4.7 in (120 mm) of rain. July is inside the Apr – Oct window our Hawaii Paradise route recommends.
How cold is Big Island in July?
Average highs are 57°F (14°C) and average lows 43°F (6°C), making it the 2nd-warmest month by daytime highs.
Does it rain a lot in Big Island in July?
Yes: about 4.7 in (120 mm) of rain falls across July on average, the 3rd-driest month of the year. The annual total is about 71.5 in (1816 mm).
What should I pack for Big Island in July?
Bring a warm layer for evenings (nights drop to 43°F), rain jacket and waterproof shoes (frequent rain) and comfortable walking shoes (most places below are best reached on foot or with short walks).
More on Big Island
Routes in season in July
- Hawaii Paradise Apr – Oct
Planning Big Island in July?
Share this July plan with your group, poll everyone on dates and keep the packing list in one place.