Weather in Sumatra, Indonesia in October

So you're interested in going to Sumatra, Indonesia in October

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

Temperature in Sumatra in October

The average maximum temperature in Sumatra in October is 33°. The average maximum temperature is 33° in the previous month and 31° in the next month.

The average temperature in Sumatra in October is 28°. The average temperature ranges is 28° in the previous month and 27° in the next month.

The average minimum temperature in Sumatra in October is 22°. The minimum temperature is 22° in the previous month and 23° in the next month.

Sunshine in Sumatra in October

The average day light hours per day in Sumatra in October are 12.2 and there are 8.1 hours of sunshine per day on average during October making it a sunny month with few clouds.

The ultraviolet index in Sumatra in October is typically 14.7 during October. 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 Sumatra in October

The average sea water temperature in Sumatra in October is 28.9° which is very warm and ideal for relaxing and swimming for the whole day.

Rainfall in Sumatra in October

The average total rainfall in Sumatra in October is 15.7cm and on average there are 11.5 rainy days in October making it a slightly wet time to visit the beach.

Humidity in Sumatra in October

The maximum dew point (an indicator of humidity) in Sumatra in October is 24° 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 23° in the previous month and 24° in the next month.

The average maximum relative humidity in Sumatra in October is typically 93.3%. The maximum relative humidity is 91.6% in the previous month and 96% in the next month.

The average relative humidity in Sumatra in October is typically 75.9%. The average relative humidity is 72% in the previous month and 85% in the next month.

Wind Speed in Sumatra in October

The average maximum wind speed in Sumatra in October is typically 21kmh. The average maximum wind speed is 27kmh in the previous month and 16kmh in the next month.

The average wind speed in Sumatra in October is typically 5kmh. The average wind speed is 8kmh in the previous month and 3kmh in the next month.

The average wind direction in Sumatra in October is from the North.

Monthly Averages

Suggested Beaches in October

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