Kauai Weather in August

Average temperatures, rainfall, sunshine and the best places to visit in Kauai, the United States of America in August.

Considering a trip to Kauai, the United States of America this August and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What to Expect in Kauai in August

Kauai, the United States of America is a region in the United States of America. August in Kauai generally has warm temperatures, with moderate precipitation.

Temperatures

You can expect warm maximum daytime temperatures of around 28°C (82°F) and nighttime temperatures around 24°C (75°F) in Princeville.

For a closer look at conditions across Kauai, the United States of America, refer to the map below.

Precipitation

In August, precipitation varies across different areas. From moderate rainfall in Koloa with an average of 45 mm (1.8 in) to moderate rainfall in Kapaa with 69 mm (2.7 in).

Average sunshine

Plenty of sunshine can be expected in numerous places in August. Princeville typically receives 263 hours of sunlight, making it ideal for those seeking sunny weather.

Explore Kauai by month

Pick a month to see the average temperature, rainfall and sunshine in Kauai - and find the best time to visit. (based on Princeville)

Best Places to Visit in Kauai in August

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Kauai.

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).

Popular Destinations in Kauai

What is the weather like in August for some of the most popular destinations in Kauai, the United States of America?

Temperature range in Kauai (August)

Precipitation variation in Kauai (August)

Princeville

In August Princeville generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 24°C (75°F) and moderate monthly rainfall. So on average the conditions are excellent that month.

July
August
September
Max temperature
27°C (81°F)
28°C (82°F)
28°C (82°F)
Min temperature
23°C (73°F)
24°C (75°F)
24°C (75°F)
Monthly sun hours
260 hours
263 hours
242 hours
Monthly rainfall
49 mm (1.9 in)
49 mm (1.9 in)
49 mm (1.9 in)
Monthly rainy days
19 days
17 days
16 days
Weather conditions

Koloa

In August Koloa generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 24°C (75°F) and moderate monthly rainfall. So on average the conditions are excellent that month.

July
August
September
Max temperature
27°C (81°F)
28°C (82°F)
28°C (82°F)
Min temperature
23°C (73°F)
24°C (75°F)
24°C (75°F)
Monthly sun hours
260 hours
263 hours
242 hours
Monthly rainfall
42 mm (1.7 in)
45 mm (1.8 in)
46 mm (1.8 in)
Monthly rainy days
19 days
17 days
16 days
Weather conditions

Kapaa

In August Kapaa generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 24°C (75°F) and moderate monthly rainfall. So on average the conditions are excellent that month.

July
August
September
Max temperature
27°C (81°F)
28°C (82°F)
28°C (82°F)
Min temperature
23°C (73°F)
24°C (75°F)
24°C (75°F)
Monthly sun hours
260 hours
263 hours
242 hours
Monthly rainfall
67 mm (2.6 in)
69 mm (2.7 in)
65 mm (2.6 in)
Monthly rainy days
19 days
17 days
16 days
Weather conditions

Lihue

In August Lihue generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 24°C (75°F) and moderate monthly rainfall. So on average the conditions are excellent that month.

July
August
September
Max temperature
27°C (81°F)
28°C (82°F)
28°C (82°F)
Min temperature
23°C (73°F)
24°C (75°F)
24°C (75°F)
Monthly sun hours
260 hours
263 hours
242 hours
Monthly rainfall
65 mm (2.6 in)
67 mm (2.6 in)
64 mm (2.5 in)
Monthly rainy days
19 days
17 days
16 days
Weather conditions

Hanalei

In August Hanalei generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 24°C (75°F) and moderate monthly rainfall. So on average the conditions are excellent that month.

July
August
September
Max temperature
27°C (81°F)
28°C (82°F)
28°C (82°F)
Min temperature
23°C (73°F)
24°C (75°F)
24°C (75°F)
Monthly sun hours
260 hours
263 hours
242 hours
Monthly rainfall
48 mm (1.9 in)
49 mm (1.9 in)
49 mm (1.9 in)
Monthly rainy days
19 days
17 days
16 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Kauai, in the United States of America.

Popular cities in August

Day & night temperatures, rainfall and average weather in Kauai in August.

City Weather Day temp Night temp Rainfall
Princeville 28°C (82°F) 24°C (75°F) 49 mm (1.9 in)
Koloa 28°C (82°F) 24°C (75°F) 45 mm (1.8 in)
Kapaa 28°C (82°F) 24°C (75°F) 69 mm (2.7 in)
Lihue 28°C (82°F) 24°C (75°F) 67 mm (2.6 in)
Hanalei 28°C (82°F) 24°C (75°F) 49 mm (1.9 in)

Kauai weather in August: frequently asked questions

What is the weather like in Kauai, the United States of America in August?

In August, Kauai, the United States of America generally has excellent weather conditions. Princeville sees daytime temperatures near 28°C (82°F), with nights cooling to roughly 24°C (75°F).

What is the average temperature in Kauai, the United States of America in August?

Average temperatures in Kauai, the United States of America during August range from a nighttime low near 24°C (75°F) to a daytime high around 28°C (82°F) in Princeville.

Does Kauai, the United States of America get a lot of rain in August?

Not particularly. Princeville averages just 49 mm (1.9 in) of rain in August, making it a mostly dry month for Kauai, the United States of America.

Is August a Good Time to Visit Kauai, the United States of America?

Given the typically excellent weather conditions in Princeville, August might be a good time to visit Kauai, the United States of America. However, the weather conditions may vary depending on your destination.

On average, the best time to visit Kauai, the United States of America is in with generally excellent weather in Princeville.

Interested in more climate information?

We have much more information about the climate in Kauai.

Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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