Middle of the wetter season · Weather & things to do
Big Island in March
The year's rain peaks now, with about 8.8 in (224 mm) falling in Big Island, alongside highs near 51°F (10°C) and lows of 38°F (4°C).
With a comfort score of 45/100 (12th of 12), it's one of the toughest months, held back mainly by rain.
- Avg high
- 51°F (10°C)
- Avg low
- 38°F (4°C)
- Rain
- 8.8 in (224 mm)
- Humidity
- 84%
- Cloud cover
- 62%
- Daylight
- ~11 h 52 min
- Comfort score
- 45/100 · Fair
What March feels like
It's cool, with highs near 51°F (10°C), so a proper jacket stays on most of the day.
Lows average 38°F (4°C).
Rain is a real factor, with about 8.8 in (224 mm) across the month.
Plan around March
March is one of the lower-scoring months here; the best are June – October.
- Inside the wettest three-month stretch, February – April.
- Comfort slips from 54/100 in February to 45/100.
- Our Hawaii Paradise route recommends Apr – Oct, so March falls outside its suggested window.
What to pack for March
- Insulated jackethighs only 51°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 March
Wet days call for a roof: these picks favor sit-down and indoor stops, plus a few for drier spells.
Tex Drive In
Roadside drive-in since 1968, famous for hot filled malasadas off Highway 19 on the Hamakua coast.
Why now A sit-down stop to wait out showers in a month with 8.8 in of rain.
Café 100
Hilo diner that has served loco moco since 1946.
Why now Easy to slot in when March's rain moves in.
Greenwell Farms
Family Kona coffee farm with free tours and tastings.
Why now Keeps part of the day dry on wetter March days.
ʻAkaka Falls State Park
Short loop through rainforest to a 442-ft waterfall north of Hilo.
Puʻuhonua o Hōnaunau National Historical Park
Restored royal grounds and place of refuge on a lava shoreline.
Nearby in March
- Maui in March~97 mi · highs 68°F, 3.3 in rain · 9°C (17°F) warmer by day, drier
- Kailua & Lanikai in March~185 mi · highs 75°F, 3.0 in rain · 14°C (25°F) warmer by day, drier
- Waikiki in March~185 mi · highs 77°F, 3.7 in rain · 14°C (26°F) warmer by day, drier
- Oahu in March~200 mi · highs 75°F, 3.7 in rain · 13°C (24°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 March: quick answers
Is March a good time to visit Big Island?
It's one of the tougher months here, scoring 45/100, held back mainly by rain. The best months are June – October. Expect highs of 51°F (10°C) and 8.8 in (224 mm) of rain. Our Hawaii Paradise route recommends Apr – Oct, so March is outside its suggested window.
How cold is Big Island in March?
Average highs are 51°F (10°C) and average lows 38°F (4°C), making it the 4th-coldest month by daytime highs.
Does it rain a lot in Big Island in March?
Yes: about 8.8 in (224 mm) of rain falls across March on average, the wettest month of the year. The annual total is about 71.5 in (1816 mm).
What should I pack for Big Island in March?
Bring insulated jacket (highs only 51°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
Planning Big Island in March?
Bring the crew into one shared trip: vote on dates, build the day-by-day plan, split costs and share one packing list.