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28°
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29°
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The weather in December is marginally cooler than the previous month and temperatures continue to drop slightly into January. December has average maximum temperatures of 30°C (85°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 52% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 6.4 hours of sunshine per day. It is not an optimal time for sunbathing but it is possible on clearer days in Sumatra.
December has total rainfall of 34.6cm (13.6inches) making it rainy with a chance of occasional heavy tropical showers. There are 22.9 days with some rainfall so there are few clear days to enjoy the beach.
Sea temperatures are a very warm 29°C (85°F). December is an excellent month for swimming in Sumatra with very comfortable temperatures for bathing all day. The sea temperature in December is marginally cooler than the previous month and temperatures continue to drop slightly into January.
Consider visiting Sumatra in the months of June, July, August, September, for the best beach weather. Also consider one of our other suggestions for December.
Yes, December is not an optimal time for sunbathing but it is possible on clearer days in Sumatra.
December has average maximum temperatures of 30°C (85°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 52% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 6.4 hours of sunshine per day. December has total rainfall of 34.6cm (13.6inches) making it rainy with a chance of occasional heavy tropical showers. There are 22.9 days with some rainfall so there are few clear days to enjoy the beach.
More about December temperature and sunshine.
Yes, December is an excellent month for swimming in Sumatra with very warm sea temperatures 29°C (85°F).
More about December sea temperatures.
Yes, December is a good time for a holiday in Sumatra.
December has average maximum temperatures of 30°C (85°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 52% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 6.4 hours of sunshine per day. December has total rainfall of 34.6cm (13.6inches) making it rainy with a chance of occasional heavy tropical showers. There are 22.9 days with some rainfall so there are few clear days to enjoy the beach. It is not an optimal time for sunbathing but it is possible on clearer days in Sumatra. Sea temperatures are a very warm 29°C (85°F). December is an excellent month for swimming in Sumatra with very comfortable temperatures for bathing all day.
More about the December temperatures and sunshine.
Yes, Sumatra is very warm and perfect for sunbathing on clear days in December.
The average maximum temperature in Sumatra in December is 30°C (85°F). The average maximum temperature is 31°C (88°) in the previous month and 29°C (85°F) in the next month.
The average temperature in Sumatra in December is 27°C (80°F). The average temperature is 27°C (81°F) in the previous month and 27°C (80°F) in the next month.
More info about the December temperatures and sunshine.
The average day light hours per day in Sumatra in December are 12.3. The sunshine percentage is 52% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 6.4 hours of sunshine per day.
More about December sunshine.
The weather in December is marginally cooler than the previous month and temperatures continue to drop slightly into January. The average maximum temperature in Sumatra in December is 30°C (85°F). The average maximum temperature is 31°C (88°F) in the previous month and 29°C (85°F) in the next month.
The average temperature in Sumatra in December is 27°C (80°F). The average temperature is 27°C (81°F) in the previous month and 27°C (80°F) in the next month.
The average minimum temperature in Sumatra in December is 23°C (74°F). The minimum temperature is 23°C (73°F) in the previous month and 23°C (74°F) in the next month.
The days in December are longer than the previous month. December has slightly less hours of sunshine than the previous month. During December the average day light hours are 12.3 per day in Sumatra. The sunshine percentage is 52% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 6.4 hours of sunshine per day.
The ultraviolet index in Sumatra in December is typically 13.6 during December. 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 December is 29.4°C (84.9°F) which is very warm and ideal for relaxing and swimming for the whole day. The sea temperature in December is marginally cooler than the previous month and temperatures continue to drop slightly into January.
December weather is much wetter than the previous month and rainfall continues to rise slightly into January. December has a few more days of rain than the previous month. The average total rainfall in Sumatra in December is 34.6cm (13.6inches) and on average there are 22.9 rainy days in December making it a very wet time to visit the beach.
The maximum dew point (an indicator of humidity) in Sumatra in December 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 24°C (76°F) in the previous month and 24°C (24°F) in the next month.
The average maximum relative humidity in Sumatra in December is typically 97%. The maximum relative humidity is 96% in the previous month and 93.1% in the next month.
The average relative humidity in Sumatra in December is typically 87.6%. The average relative humidity is 85% in the previous month and 81.9% in the next month.
The average maximum wind speed in Sumatra in December is typically 20KM/H (12MPH). The average maximum wind speed is 16KM/H (10MPH) in the previous month and 24KM/H (15MPH) in the next month.
The average wind speed in Sumatra in December is typically 6KM/H (3MPH). The average wind speed is 3KM/H (2MPH) in the previous month and 11KM/H (7MPH) in the next month.
The average wind direction in Sumatra in December is from the North.
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.
