Weather in Indonesia in September

So you're interested in going to Indonesia in September

September is a hot and very dry time for sunbathing in Indonesia. September is an excellent month for swimming in Indonesia with very warm sea temperatures. Consider visiting Indonesia in the months of June, August, September, October, for the best beach weather. Also consider one of our other suggestions for September.

Temperature in Indonesia in September

The average maximum temperature in Indonesia in September is 28°. The average maximum temperature is 27° in the previous month and 29° in the next month.

The average temperature in Indonesia in September is 25°. The average temperature ranges is 25° in the previous month and 26° in the next month.

The average minimum temperature in Indonesia in September is 22°. The minimum temperature is 22° in the previous month and 23° in the next month.

Sunshine in Indonesia in September

The average day light hours per day in Indonesia in September are 12.1 and there are 9.2 hours of sunshine per day on average during September making it a sunny month with few clouds.

The ultraviolet index in Indonesia in September is typically 14.3 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.

Sea Temperature in Indonesia in September

The average sea water temperature in Indonesia in September is 27.1° which is very warm and ideal for relaxing and swimming for the whole day.

Rainfall in Indonesia in September

The average total rainfall in Indonesia in September is 6.2cm and on average there are 2.9 rainy days in September making it a very dry time to visit the beach.

Humidity in Indonesia in September

The maximum dew point (an indicator of humidity) in Indonesia in September is 21° 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° in the previous month and 23° in the next month.

The average maximum relative humidity in Indonesia in September is typically 82.2%. The maximum relative humidity is 80% in the previous month and 83.6% in the next month.

The average relative humidity in Indonesia in September is typically 69.1%. The average relative humidity is 69% in the previous month and 69.9% in the next month.

Wind Speed in Indonesia in September

The average maximum wind speed in Indonesia in September is typically 21kmh. The average maximum wind speed is 23kmh in the previous month and 20kmh in the next month.

The average wind speed in Indonesia in September is typically 10kmh. The average wind speed is 13kmh in the previous month and 8kmh in the next month.

The average wind direction in Indonesia in September is from the South-Southeast.

Monthly Averages

Suggested Beaches in September

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