Oahu Weather by Month: Temperature & Rainfall Guide

Oahu is a region in the United States of America. Many people wonder what the weather conditions are in Oahu over the year. What is the best time to visit Oahu?

This page shows the average weather conditions by month in Oahu over the year in: January, February, March, April, May, June, July, August, September, October, November, December.

Oahu in January

In January the weather in Oahu is generally excellent. In Honolulu you can expect warm maximum average daytime temperatures around 25°C (77°F) and nighttime temperatures around 21°C (70°F).

Find more detailed climate information for Oahu in January here.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Oahu in February

In February the weather in Oahu is generally excellent. In Honolulu you can expect warm maximum average daytime temperatures around 25°C (77°F) and nighttime temperatures around 21°C (70°F). On average, this month is the coldest month of the year in Oahu.

Find more detailed climate information for Oahu in February here.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Oahu in March

In March the weather in Oahu is generally excellent. In Honolulu you can expect warm maximum average daytime temperatures around 25°C (77°F) and nighttime temperatures around 21°C (70°F).

Find more detailed climate information for Oahu in March here.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Oahu in April

In April the weather in Oahu is generally excellent. In Honolulu you can expect warm maximum average daytime temperatures around 26°C (79°F) and nighttime temperatures around 22°C (72°F).

Find more detailed climate information for Oahu in April here.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Oahu in May

In May the weather in Oahu is generally excellent. In Honolulu you can expect warm maximum average daytime temperatures around 27°C (81°F) and nighttime temperatures around 23°C (73°F).

Find more detailed climate information for Oahu in May here.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Oahu in June

In June the weather in Oahu is generally excellent. In Honolulu you can expect warm maximum average daytime temperatures around 28°C (82°F) and nighttime temperatures around 23°C (73°F).

Find more detailed climate information for Oahu in June here.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Oahu in July

In July the weather in Oahu is generally excellent. In Honolulu you can expect warm maximum average daytime temperatures around 28°C (82°F) and nighttime temperatures around 24°C (75°F).

Find more detailed climate information for Oahu in July here.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Oahu in August

In August the weather in Oahu is generally excellent. In Honolulu you can expect warm maximum average daytime temperatures around 29°C (84°F) and nighttime temperatures around 24°C (75°F). On average, this month is one of the warmest months of the year in Oahu. So be prepared and make sure to dress lightly.

Find more detailed climate information for Oahu in August here.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Oahu in September

In September the weather in Oahu is generally excellent. In Honolulu you can expect warm maximum average daytime temperatures around 29°C (84°F) and nighttime temperatures around 24°C (75°F). On average, this month is one of the warmest months of the year in Oahu. So be prepared and make sure to dress lightly.

Find more detailed climate information for Oahu in September here.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Oahu in October

In October the weather in Oahu is generally excellent. In Honolulu you can expect warm maximum average daytime temperatures around 28°C (82°F) and nighttime temperatures around 24°C (75°F).

Find more detailed climate information for Oahu in October here.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Oahu in November

In November the weather in Oahu is generally excellent. In Honolulu you can expect warm maximum average daytime temperatures around 27°C (81°F) and nighttime temperatures around 23°C (73°F).

Find more detailed climate information for Oahu in November here.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Oahu in December

In December the weather in Oahu is generally excellent. In Honolulu you can expect warm maximum average daytime temperatures around 26°C (79°F) and nighttime temperatures around 22°C (72°F).

Find more detailed climate information for Oahu in December here.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Top destinations

More climate information for the top 4 destinations in Oahu:

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