Which is the hottest month in Hilo, Big Island?

The hottest time of year in Hilo, Big Island is normally September. Expect maximum daytime temperatures to reach 30°C with high heat and humidity.

Which month has the most rain in Hilo, Big Island?

In terms of rainfall, December is usually the wettest month in Hilo, Big Island with 82mm on average. There are normally 11 days in December with some rain.

When is it sunniest in Hilo, Big Island?

The sunniest time of year in Hilo, Big Island is normally September with bright sunshine on average for 74% of daylight hours; that's 9 hours of sunshine per day.

When is the sea warmest in Hilo, Big Island?

The sea is usually at its warmest in Hilo, Big Island in September when the water temperature reaches 27°C.

Best time to visit Hilo, Big Island

Q: When is the best time to visit Hilo, Big Island?

The best times to visit Hilo, Big Island, Hawaii are in April, May, June, July, August, September, October, November and December Maximum daytime temperature = 22 - 30°C.

The best times to visit Hilo, Big Island, Hawaii are in April, May, June, July, August, September, October, November and December based on our default weather conditions. Update your weather preferences to see which months best match.

Hilo, Big Island by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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When is the best time to visit Hilo, Big Island?

The best times to visit Hilo, Big Island, Hawaii are in April, May, June, July, August, September, October, November and December based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]

Change the criteria to reflect your weather preferences.

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Change criteria

Max Day Temperature (°C)

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Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Hawaii (Hilo, Big Island) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)