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The weather in September is marginally cooler than the previous month and temperatures continue to drop slightly into October. September has average maximum temperatures of 31°C (88°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 59% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 7.3 hours of sunshine per day. It is a good time for sunbathing in St John Island.
September has total rainfall of 18.8cm (7.4inches) making it a bit rainy but with only moderate tropical showers. There are 19.3 days with some rainfall so you can still enjoy the beach on the clear days.
Sea temperatures are a very warm 29°C (83°F). September is an excellent month for swimming in St John Island with very comfortable temperatures for bathing all day. The sea temperature in September is slightly warmer than the previous month.
Consider visiting St John Island in the months of January, February, March, April, for the best beach weather. Also consider one of our other suggestions for September.
Yes, September is a good time for sunbathing in St John Island.
September has average maximum temperatures of 31°C (88°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 59% 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 18.8cm (7.4inches) making it a bit rainy but with only moderate tropical showers. There are 19.3 days with some rainfall so you can still enjoy the beach on the clear days.
More about September temperature and sunshine.
Yes, September is an excellent month for swimming in St John Island with very warm sea temperatures 29°C (83°F).
More about September sea temperatures.
Yes, September is a good time for a holiday in St John Island.
September has average maximum temperatures of 31°C (88°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 59% 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 18.8cm (7.4inches) making it a bit rainy but with only moderate tropical showers. There are 19.3 days with some rainfall so you can still enjoy the beach on the clear days. It is a good time for sunbathing in St John Island. Sea temperatures are a very warm 29°C (83°F). September is an excellent month for swimming in St John Island with very comfortable temperatures for bathing all day.
More about the September temperatures and sunshine.
Yes, St John Island is very hot and perfect for sunbathing on clear days in September.
The average maximum temperature in St John Island in September is 31°C (88°F). The average maximum temperature is 31°C (89°) in the previous month and 31°C (87°F) in the next month.
The average temperature in St John Island in September is 29°C (83°F). The average temperature is 29°C (84°F) in the previous month and 28°C (83°F) in the next month.
More info about the September temperatures and sunshine.
The average day light hours per day in St John Island in September are 12.2. The sunshine percentage is 59% 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 weather in September is marginally cooler than the previous month and temperatures continue to drop slightly into October. The average maximum temperature in St John Island in September is 31°C (88°F). The average maximum temperature is 31°C (89°F) in the previous month and 31°C (87°F) in the next month.
The average temperature in St John Island in September is 29°C (83°F). The average temperature is 29°C (84°F) in the previous month and 28°C (83°F) in the next month.
The average minimum temperature in St John Island in September is 26°C (79°F). The minimum temperature is 26°C (79°F) in the previous month and 26°C (78°F) in the next month.
The days in September are slightly shorter than the previous month and days continue to get marginally shorter into October. During September the average day light hours are 12.2 per day in St John Island. The sunshine percentage is 59% 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 St John Island in September is typically 12.3 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 St John Island in September is 28.5°C (83.3°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 wetter than the previous month and rainfall continues to rise slightly into October. September has fewer days of rain than the previous month. The average total rainfall in St John Island in September is 18.8cm (7.4inches) and on average there are 19.3 rainy days in September making it a wet time to visit the beach.
The maximum dew point (an indicator of humidity) in St John Island in September is 25°C (77°F) which is very uncomfortable and fairly oppressive unless you are on a beach. At night you would most likely require airconditioning. The dew point is 25°C (77°F) in the previous month and 24°C (24°F) in the next month.
The average maximum relative humidity in St John Island in September is typically 88%. The maximum relative humidity is 86.2% in the previous month and 87.3% in the next month.
The average relative humidity in St John Island in September is typically 77.2%. The average relative humidity is 74.8% in the previous month and 76.6% in the next month.
The average maximum wind speed in St John Island in September is typically 27KM/H (17MPH). The average maximum wind speed is 31KM/H (19MPH) in the previous month and 29KM/H (18MPH) in the next month.
The average wind speed in St John Island in September is typically 14KM/H (9MPH). The average wind speed is 17KM/H (10MPH) in the previous month and 14KM/H (9MPH) in the next month.
The average wind direction in St John Island in September is from the East-Southeast.
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.
