Kauai Weather by Month: Temperature & Rainfall Guide

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

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

Kauai in January

In January the weather in Kauai is generally excellent. In Princeville you can expect warm maximum average daytime temperatures around 24°C (75°F) and nighttime temperatures around 21°C (70°F).

Find more detailed climate information for Kauai 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).

Kauai in February

In February the weather in Kauai is generally excellent. In Princeville you can expect warm maximum average daytime temperatures around 24°C (75°F) and nighttime temperatures around 20°C (68°F). On average, this month is the coldest month of the year in Kauai.

Find more detailed climate information for Kauai 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).

Kauai in March

In March the weather in Kauai ranges from very good in Kapaa to excellent in Princeville. In Princeville you can expect warm maximum average daytime temperatures around 24°C (75°F) and nighttime temperatures around 20°C (68°F).

Find more detailed climate information for Kauai 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).

Kauai in April

In April the weather in Kauai is generally excellent. In Princeville 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 Kauai 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).

Kauai in May

In May the weather in Kauai is generally excellent. In Princeville 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 Kauai 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).

Kauai in June

In June the weather in Kauai is generally excellent. In Princeville 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 Kauai 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).

Kauai in July

In July the weather in Kauai is generally excellent. In Princeville 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 Kauai 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).

Kauai in August

In August the weather in Kauai is generally excellent. In Princeville 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 Kauai 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).

Kauai in September

In September the weather in Kauai is generally excellent. In Princeville you can expect warm maximum average daytime temperatures around 28°C (82°F) and nighttime temperatures around 24°C (75°F). On average, this month is one of the warmest months of the year in Kauai. So be prepared and make sure to dress lightly.

Find more detailed climate information for Kauai 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).

Kauai in October

In October the weather in Kauai is generally excellent. In Princeville you can expect warm maximum average daytime temperatures around 27°C (81°F) and nighttime temperatures around 24°C (75°F).

Find more detailed climate information for Kauai 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).

Kauai in November

In November the weather in Kauai is generally excellent. In Princeville you can expect warm maximum average daytime temperatures around 26°C (79°F) and nighttime temperatures around 23°C (73°F).

Find more detailed climate information for Kauai 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).

Kauai in December

In December the weather in Kauai is generally excellent. In Princeville you can expect warm maximum average daytime temperatures around 25°C (77°F) and nighttime temperatures around 22°C (72°F).

Find more detailed climate information for Kauai 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 5 destinations in Kauai:

Bucket list

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