Honolulu, HI Weather by Month and Climate Averages

How much rain does Honolulu get?

Honolulu gets 20.6 in of precipitation in an average year, spread over about 119 days with measurable rain. That is more rainy days than 78% of the US.

March is the wettest month, with 3.2 in. June is the driest, with 0.6 in. December has the most rainy days, about 13.

The longest dry spell in the last five years lasted 11 days, to August 4, 2023.

See where Honolulu ranks: rainiest cities in the US, US cities with the most rainy days.

Honolulu weather by month

Honolulu weather in January

In January, Honolulu averages a high of 80°F and a low of 65°F. It gets 2.4 in of precipitation over about 11 rainy days. The sun is out about 65% of daylight hours. The January record high is 89°F (1989) and the record low is 43°F (2009).

Honolulu weather in February

In February, Honolulu averages a high of 81°F and a low of 66°F. It gets 2.0 in of precipitation over about 9 rainy days. The sun is out about 66% of daylight hours. The February record high is 90°F (1984) and the record low is 51°F (1987).

Honolulu weather in March

In March, Honolulu averages a high of 81°F and a low of 67°F. It gets 3.2 in of precipitation over about 11 rainy days. The sun is out about 52% of daylight hours. The March record high is 92°F (1986) and the record low is 53°F (1976).

Honolulu weather in April

In April, Honolulu averages a high of 83°F and a low of 69°F. It gets 1.2 in of precipitation over about 10 rainy days. The sun is out about 55% of daylight hours. The April record high is 90°F (2015) and the record low is 51°F (2008).

Honolulu weather in May

In May, Honolulu averages a high of 85°F and a low of 70°F. It gets 1.0 in of precipitation over about 8 rainy days. The sun is out about 63% of daylight hours. The May record high is 93°F (1995) and the record low is 53°F (2018).

Honolulu weather in June

In June, Honolulu averages a high of 87°F and a low of 73°F. It gets 0.6 in of precipitation over about 8 rainy days. The sun is out about 71% of daylight hours. The June record high is 93°F (1987) and the record low is 59°F (2018).

Honolulu weather in July

In July, Honolulu averages a high of 87°F and a low of 74°F. It gets 0.7 in of precipitation over about 10 rainy days. The sun is out about 60% of daylight hours. The July record high is 95°F (1987) and the record low is 59°F (2008).

Honolulu weather in August

In August, Honolulu averages a high of 88°F and a low of 74°F. It gets 0.7 in of precipitation over about 9 rainy days. The sun is out about 76% of daylight hours. The August record high is 94°F (2015) and the record low is 60°F (2008).

Honolulu weather in September

In September, Honolulu averages a high of 88°F and a low of 74°F. It gets 1.0 in of precipitation over about 10 rainy days. The sun is out about 70% of daylight hours. The September record high is 97°F (2019) and the record low is 56°F (2017).

Honolulu weather in October

In October, Honolulu averages a high of 86°F and a low of 73°F. It gets 2.2 in of precipitation over about 10 rainy days. The sun is out about 66% of daylight hours. The October record high is 95°F (1984) and the record low is 53°F (2008).

Honolulu weather in November

In November, Honolulu averages a high of 84°F and a low of 71°F. It gets 2.6 in of precipitation over about 12 rainy days. The sun is out about 64% of daylight hours. The November record high is 92°F (1980) and the record low is 56°F (1972).

Honolulu weather in December

In December, Honolulu averages a high of 81°F and a low of 68°F. It gets 3.0 in of precipitation over about 13 rainy days. The sun is out about 61% of daylight hours. The December record high is 90°F (1983) and the record low is 51°F (2008).

Sunshine, humidity and wind in Honolulu

August is the sunniest month in Honolulu, with sunshine about 76% of daylight hours. March is the cloudiest, at 52%. Over the year the sun shines about 64% of daylight hours. Honolulu is sunnier than 91% of the US.

Humidity peaks in July at 77% and is lowest in February at 73%.

Honolulu has about 24 days a year above 90°F. Honolulu is cooler than 56% of the US.

See where Honolulu ranks: sunniest cities in the US, cloudiest cities in the US, hottest cities in the US.

Honolulu weather records

The hottest temperature on record at the Honolulu station is 97°F, on September 24, 2019. The coldest is 43°F, on January 18, 2009.

The wettest day on record brought 6.1 in of rain, on October 31, 1978.

30 all-time records have been set at the station since 1970.

The annual mean temperature has changed by +0.3°F per decade since 1970.

The best time to visit Honolulu

Winter (December–February) is warm, with average highs around 81°F and lows near 66°F.

Spring (March–May) is hot, with average highs around 83°F and lows near 69°F.

Summer (June–August) is hot, with average highs around 87°F and lows near 74°F. It can feel humid.

Autumn (September–November) is hot, with average highs around 86°F and lows near 72°F.

Honolulu climate questions

How much rain does Honolulu get?

Honolulu gets 20.6 in of precipitation in an average year, over about 119 rainy days.

What is the wettest month in Honolulu?

March is the wettest month in Honolulu, with 3.2 in. June is the driest, with 0.6 in.

How many rainy days does Honolulu have a year?

Honolulu has about 119 days with measurable rain in an average year. December has the most, about 13.

What is the hottest month in Honolulu?

August is the warmest month in Honolulu, with an average high of 88°F.

What is the coldest month in Honolulu?

January is the coldest month in Honolulu, with an average low of 65°F.

What is the record high temperature in Honolulu?

The record high at the Honolulu station is 97°F, set on September 24, 2019. The record low is 43°F, on January 18, 2009.

What is the sunniest month in Honolulu?

August is the sunniest month in Honolulu, with sunshine about 76% of daylight hours. March is the cloudiest.