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September is one of the best months to visit Honolulu for the best beach weather. It has the most sunshine and best sunbathing and swimming conditions of the year.
September has average maximum temperatures of 29°C (84°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 59.8% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 7.3 hours of sunshine per day.
September has total rainfall of 4.6cm (1.8inches) making it mostly dry with very rare light showers although there are 16.7 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 27°C (81°F). September is an excellent month for swimming in Honolulu with very comfortable temperatures for bathing all day. The sea temperature in September is slightly warmer than the previous month.
Also consider visiting Honolulu in one of the other best months of June, July, August, for the best beach weather. Also consider one of our other suggestions for September.
Yes, September is a good time for sunbathing in Honolulu.
September has average maximum temperatures of 29°C (84°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 59.8% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 7.3 hours of sunshine per day. September has total rainfall of 4.6cm (1.8inches) making it mostly dry with very rare light showers although there are 16.7 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 Honolulu with very warm sea temperatures 27°C (81°F).
More about September sea temperatures.
Yes, September is a good time for a holiday in Honolulu.
September has average maximum temperatures of 29°C (84°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 59.8% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 7.3 hours of sunshine per day. September has total rainfall of 4.6cm (1.8inches) making it mostly dry with very rare light showers although there are 16.7 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 27°C (81°F). September is an excellent month for swimming in Honolulu with very comfortable temperatures for bathing all day.
More about the September temperatures and sunshine.
Yes, Honolulu is very warm and perfect for sunbathing on clear days in September.
The average maximum temperature in Honolulu in September is 29°C (84°F). The average maximum temperature is 29°C (84°) in the previous month and 29°C (83°F) in the next month.
The average temperature in Honolulu in September is 26°C (78°F). The average temperature is 26°C (78°F) in the previous month and 25°C (77°F) in the next month.
More info about the September temperatures and sunshine.
The average day light hours per day in Honolulu in September are 12.3. The sunshine percentage is 59.8% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 7.3 hours of sunshine per day.
More about September sunshine.
The average maximum temperature in Honolulu in September is 29°C (84°F). The average maximum temperature is 29°C (84°F) in the previous month and 29°C (83°F) in the next month.
The average temperature in Honolulu in September is 26°C (78°F). The average temperature is 26°C (78°F) in the previous month and 25°C (77°F) in the next month.
The average minimum temperature in Honolulu in September is 22°C (72°F). The minimum temperature is 22°C (72°F) in the previous month and 22°C (71°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 less hours of sunshine than the previous month and hours of sunshine continue to drop into October. During September the average day light hours are 12.3 per day in Honolulu. The sunshine percentage is 59.8% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 7.3 hours of sunshine per day.
The ultraviolet index in Honolulu in September is typically 11.9 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 Honolulu in September is 27.4°C (81.3°F) which is very warm and ideal for relaxing and swimming for the whole day. The sea temperature in September is slightly warmer than the previous month.
September weather is slightly drier than the previous month. September has a few more days of rain than the previous month. The average total rainfall in Honolulu in September is 4.6cm (1.8inches) and on average there are 16.7 rainy days in September making it a wet time to visit the beach.
The maximum dew point (an indicator of humidity) in Honolulu in September is 21°C (70°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 21°C (70°F) in the previous month and 21°C (21°F) in the next month.
The average maximum relative humidity in Honolulu in September is typically 84.2%. The maximum relative humidity is 83.4% in the previous month and 85.8% in the next month.
The average relative humidity in Honolulu in September is typically 70.7%. The average relative humidity is 70% in the previous month and 72.5% in the next month.
The average maximum wind speed in Honolulu in September is typically 27KM/H (17MPH). The average maximum wind speed is 29KM/H (18MPH) in the previous month and 26KM/H (16MPH) in the next month.
The average wind speed in Honolulu in September is typically 14KM/H (9MPH). The average wind speed is 15KM/H (10MPH) in the previous month and 13KM/H (8MPH) in the next month.
The average wind direction in Honolulu in September is from the East-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.
