Annual average weather for Koloa, United States

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Annual Average Weather for Koloa, United States

The annual average maximum daily temperature is 27.3°C (81.1°F) which is very warm and perfect for sunbathing on clear days. The annual average water temperature is typically 25.9°C (78.6°F) which is warm and pleasant for relaxing and swimming for long periods. Annually there are on average 21.4 days of rain per month and 7.1 hours of sun per day.

When is the best time to visit Koloa?

The best months to visit Koloa are April, May, August, September, for the best beach weather, the most sunshine and optimal sunbathing and swimming conditions with the least chance of rain.

The weather is perfect for sunbathing in the months from April to December when the maximum temperature reaches above 26°C (72°F)

The sea is best for swimming between June and November when the sea temperature is above the average 26°C (79°F) which is warm and pleasant for relaxing and swimming for long periods.

Can you sunbathe in Koloa year round?

Yes, you can sunbathe in Koloa all year round.

The weather is best for sunbathing in the months from April to December when the maximum temperature reaches above 26°C (72°F)

More info about the annual temperatures and sunshine.

Can you swim in Koloa year round?

Yes, you can swim in Koloa all year round.

The warmest sea water temperatures in Koloa are found in October when they peak at 28°C (82°F) and lowest in March when they dip to 24°C (74°F).

The sea temperature is above average for swimming between June and November when the sea temperature is above 26°C (79°F) which is warm and pleasant for relaxing and swimming for long periods.

For perfect swimming and lounging all day, try the months from June to November when the sea temperature is above 26°C (79°F)

More info about the annual sea temperatures

When is the hottest month in Koloa?

The hottest month in Koloa is September when the average maximum temperature is very warm and perfect for sunbathing on clear days 29°C (85°F), average temperature is 27°C (80°F) and average minimum temperature is 23°C (74°F).

More info about the annual temperatures and sunshine.

When is the coldest month in Koloa?

The coolest month in Koloa is January when the average maximum temperature is 26°C (78°F), average temperature is 22°C (72°F) and average minimum temperature is 19°C (66°F).

More info about the annual temperatures and sunshine

When is the sunniest month in Koloa?

The sunniest days in Koloa are in April which has the most hours of sunshine per day. In April the sunshine percentage is 68% making it sunny but overcast at times. The hours of sunshine per day are 8.4hrs making the days long and bright.

More info about the annual sunshine.

When is the least sunny month in Koloa?

December has the least sunshine. In December the sunshine percentage is 47% making it quite sunny but with regular periods of cloudy and overcast skies. There are 5.1 hours of sunshine per day.

More info about the annual sunshine.

When is the driest month in Koloa?

The driest month in Koloa is June with 4.2cm (1.7inches) of rain and May has the fewest days of rain with 18.1 days with some rain, a wet time to visit the beach.

More info about the annual rainfall

When is the wettest month in Koloa?

The wettest month in Koloa is March with 22cm (8.7inches) of rain and June has the most days of rain with 24.7 days with some rain, a very wet time to visit the beach.

More info about the annual rainfall.

When is the sea the coldest in Koloa?

The coldest sea water temperatures in Koloa are found in March when they dip to 24°C (74°F) which is warm and pleasant for relaxing and swimming for long periods.

More info about the annual sea temperatures.

When is the sea the warmest in Koloa?

The warmest sea water temperatures in Koloa are found in October when they peak at 28°C (82°F) which is very warm and ideal for relaxing and swimming for the whole day.

More info about the annual sea temperatures.

When is the most humid month in Koloa?

The most humid month in Koloa is August with a dew point (an indicator of humidity) of 22°C (71°F) which is very humid and quite uncomfortable for most unless you are on a beach. At night you would most likely require a fan.

More info about the annual humidity.

When is the least humid month in Koloa?

The least humid month in Koloa is February with a dew point of 19°C (66°F) which is somewhat uncomfortable for most people in cities but fine on a beach.

More info about the annual humidity.

When is the windiest month in Koloa?

The most windy month in Koloa is March when the average maximum windspeed is 34KM/H (21MPH) and the average wind speed is 22KM/H (13MPH).

More info about the annual wind conditions.

Annual Temperature for Koloa

The hottest month in Koloa is September when the average maximum temperature is 29°C (85°F), average temperature is 27°C (80°F) and average minimum temperature is 23°C (74°F).

The coolest month in Koloa is January when the average maximum temperature is 26°C (26°F), average temperature is 22°C (72°F) and average minimum temperature is 19°C (66°F).

Annual Sunshine for Koloa

The longest days in Koloa are in June, with an average of 13.5 hours of daylight per day. December has the shortest days with an average of 10.8 hours of daylight per day.

The sunniest days in Koloa are in April which has the most hours of sunshine per day. The sunshine percentage is 68% making it sunny but overcast at times. The hours of sunshine per day are 8.4hrs making the days long and bright.

December has the least sunshine. The sunshine percentage is 47% making it quite sunny but with regular periods of cloudy and overcast skies. There are 5.1 hours of sunshine per day.

The ultraviolet index is the highest in July when it reaches 12.9 and lowest in December when it reaches 6.2.

An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Annual Sea Temperature for Koloa

The warmest sea water temperatures in Koloa are found in October when they peak at 28°C (82°F) and lowest in March when they dip to 24°C (74°F).

The sea is best for swimming between June and November when the temperature is above 26°C (79°F) which is warm and pleasant for relaxing and swimming for long periods.

Annual Rainfall for Koloa

The wettest month in Koloa is March with 22cm (8.7inches) of rain and June has the most days of rain with 24.7 days with some rain, a very wet time to visit the beach.

The driest month in Koloa is June with 4.2cm (1.7inches) of rain and May has the fewest days of rain with 18.1 days with some rain, a wet time to visit the beach.

Annual Humidity for Koloa

The most humid month in Koloa is August with a dew point (an indicator of humidity) of 22°C (71°F) which is very humid and quite uncomfortable for most unless you are on a beach. At night you would most likely require a fan.

The least humid month in Koloa is February with a dew point of 19°C (66°F) which is somewhat uncomfortable for most people in cities but fine on a beach.

Annual Wind Speed for Koloa

The most windy month in Koloa is March when the average maximum windspeed is 34KM/H (21MPH) and the average wind speed is 22KM/H (13MPH).

The least windy month in Koloa is May when the average maximum windspeed is 30KM/H (18MPH) and the average wind speed is 19KM/H (12MPH).

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