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September is one of the best months to visit Sumatra for the best beach weather. It has the most sunshine and best sunbathing and swimming conditions of the year.
Also consider one of our other suggestions for September.
Yes, September is a good time for sunbathing in Sumatra. September is very hot with lots of sunshine but some overcast and cloudy skies, still great for sunbathing, and there is quite a high chance of rain showers.
The average maximum temperature in Sumatra in September is 33°C (91°F).
More about September temperature and sunshine.
Yes, September is an excellent month for swimming in Sumatra with very warm sea temperatures 28°C (83°F).
More about September sea temperatures.
Yes, September is a good time for a holiday in Sumatra.
September is very hot and generally sunny and pleasant with long bright days. It is quite dry but with occasional showers, though there are many days without rain.
It's a quite rainy month, however on the days with out rain it's perfect for laying on the beach and enjoying the sunshine.
The average maximum temperature in Sumatra in September is 33°C (91°F).
More about the September temperatures and sunshine.
The average minimum temperature in Sumatra in September is 22°C (72°F). The minimum temperature is 23°C (73°F) in the previous month and 22°C (72°F) in the next month.
More about the September temperatures and sunshine.
The average day light hours per day in Sumatra in September are 12.1 and there are 9.2 hours of sunshine per day on average during September, making it generally sunny and pleasant with long bright days.
More about September sunshine.
Yes, September is an excellent month for swimming in Sumatra with very warm sea temperatures 28°C (83°F).
More about September sea temperatures.
Yes, Sumatra is very hot in September.
The average maximum temperature in Sumatra in September is 33°C (91°F). The average maximum temperature is 32°C (89°) in the previous month and 33°C (91°F) in the next month.
The average temperature in Sumatra in September is 28°C (82°F). The average temperature ranges is 27°C (81°F) in the previous month and 28°C (82°F) in the next month.
More info about the September temperatures and sunshine.
The average maximum temperature in Sumatra in September is 33°C (91°F). The average maximum temperature is 32°C (89°F) in the previous month and 33°C (91°F) in the next month.
The average temperature in Sumatra in September is 28°C (82°F). The average temperature ranges is 27°C (81°F) in the previous month and 28°C (82°F) in the next month.
The average minimum temperature in Sumatra in September is 22°C (72°F). The minimum temperature is 23°C (73°F) in the previous month and 22°C (72°F) in the next month.
The average day light hours per day in Sumatra in September are 12.1 and there are 9.2 hours of sunshine per day on average during September making it generally sunny and pleasant with long bright days
The ultraviolet index in Sumatra in September is typically 14.7 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 Sumatra in September is 28.4°C (83.1°F) which is very warm and ideal for relaxing and swimming for the whole day.
The average total rainfall in Sumatra in September is 12.1cm (4.8inches) and on average there are 10.9 rainy days in September making it a pretty wet time to visit the beach.
The maximum dew point (an indicator of humidity) in Sumatra in September is 23°C (74°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 24°C (74°F) in the previous month and 24°C (24°F) in the next month.
The average maximum relative humidity in Sumatra in September is typically 91.6%. The maximum relative humidity is 92.7% in the previous month and 93.3% in the next month.
The average relative humidity in Sumatra in September is typically 72%. The average relative humidity is 75.1% in the previous month and 75.9% in the next month.
The average maximum wind speed in Sumatra in September is typically 27KM/H (17MPH). The average maximum wind speed is 25KM/H (16MPH) in the previous month and 21KM/H (13MPH) in the next month.
The average wind speed in Sumatra in September is typically 8KM/H (5MPH). The average wind speed is 9KM/H (5MPH) in the previous month and 5KM/H (3MPH) in the next month.
The average wind direction in Sumatra in September is from the North.