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September is one of the best months to visit Koloa for the best beach weather. It has the most sunshine and best sunbathing and swimming conditions of the year.
The weather in September is slightly warmer than the previous month. September has average maximum temperatures of 29°C (85°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 63% making it sunny but overcast at times. The hours of sunshine per day are 7.7hrs making the days quite long and bright.
September has total rainfall of 4.8cm (1.9inches) making it very dry with only very light showers although there are 23.2 days with some rainfall, so on the days it does rain it is only light and intermittent and shouldn't affect your beach enjoyment too much.
Sea temperatures are a very warm 28°C (82°F). September is an excellent month for swimming in Koloa with very comfortable temperatures for bathing all day. The sea temperature in September is marginally warmer than the previous month and temperatures continue to rise slightly into October.
Also consider visiting Koloa in one of the other best months of April, May, August, for the best beach weather. Also consider one of our other suggestions for September.
Yes, September is not an optimal time for sunbathing but it is possible on clearer days in Koloa.
September has average maximum temperatures of 29°C (85°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 63% making it sunny but overcast at times. The hours of sunshine per day are 7.7hrs making the days quite long and bright. September has total rainfall of 4.8cm (1.9inches) making it very dry with only very light showers although there are 23.2 days with some rainfall, so on the days it does rain it is only light and intermittent and shouldn't affect your beach enjoyment too much.
More about September temperature and sunshine.
Yes, September is an excellent month for swimming in Koloa with very warm sea temperatures 28°C (82°F).
More about September sea temperatures.
Yes, September is a good time for a holiday in Koloa.
September has average maximum temperatures of 29°C (85°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 63% making it sunny but overcast at times. The hours of sunshine per day are 7.7hrs making the days quite long and bright. September has total rainfall of 4.8cm (1.9inches) making it very dry with only very light showers although there are 23.2 days with some rainfall, so on the days it does rain it is only light and intermittent and shouldn't affect your beach enjoyment too much. Sea temperatures are a very warm 28°C (82°F). September is an excellent month for swimming in Koloa with very comfortable temperatures for bathing all day.
More about the September temperatures and sunshine.
Yes, Koloa is very warm and perfect for sunbathing on clear days in September.
The average maximum temperature in Koloa in September is 29°C (85°F). The average maximum temperature is 29°C (85°) in the previous month and 29°C (84°F) in the next month.
The average temperature in Koloa in September is 27°C (80°F). The average temperature is 27°C (80°F) in the previous month and 26°C (79°F) in the next month.
More info about the September temperatures and sunshine.
The average day light hours per day in Koloa in September are 12.3. The sunshine percentage is 63% making it sunny but overcast at times. The hours of sunshine per day are 7.7hrs making the days quite long and bright.
More about September sunshine.
The weather in September is slightly warmer than the previous month. The average maximum temperature in Koloa in September is 29°C (85°F). The average maximum temperature is 29°C (85°F) in the previous month and 29°C (84°F) in the next month.
The average temperature in Koloa in September is 27°C (80°F). The average temperature is 27°C (80°F) in the previous month and 26°C (79°F) in the next month.
The average minimum temperature in Koloa in September is 23°C (74°F). The minimum temperature is 24°C (74°F) in the previous month and 23°C (73°F) in the next month.
The days in September are slightly shorter than the previous month and days continue to get slightly shorter into October. September has a slightly more hours of sunshine than the previous month. During September the average day light hours are 12.3 per day in Koloa. The sunshine percentage is 63% making it sunny but overcast at times. The hours of sunshine per day are 7.7hrs making the days quite long and bright.
The ultraviolet index in Koloa in September is typically 11.7 during September. 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.
The average sea water temperature in Koloa in September is 27.7°C (81.9°F) which is very warm and ideal for relaxing and swimming for the whole day. The sea temperature in September is marginally warmer than the previous month and temperatures continue to rise slightly into October.
September weather is slightly drier than the previous month. September has a couple of less days of rain than the previous month and rainy days continue to drop into October. The average total rainfall in Koloa in September is 4.8cm (1.9inches) and on average there are 23.2 rainy days in September making it a very wet time to visit the beach.
The maximum dew point (an indicator of humidity) in Koloa in September is 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 dew point is 22°C (71°F) in the previous month and 22°C (22°F) in the next month.
The average maximum relative humidity in Koloa in September is typically 83.5%. The maximum relative humidity is 82.9% in the previous month and 85% in the next month.
The average relative humidity in Koloa in September is typically 71.8%. The average relative humidity is 71.9% in the previous month and 73.3% in the next month.
The average maximum wind speed in Koloa in September is typically 32KM/H (20MPH). The average maximum wind speed is 33KM/H (20MPH) in the previous month and 30KM/H (19MPH) in the next month.
The average wind speed in Koloa in September is typically 20KM/H (12MPH). The average wind speed is 22KM/H (14MPH) in the previous month and 19KM/H (12MPH) in the next month.
The average wind direction in Koloa in September is from the North-Northeast.
Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.
Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.
