Weather in Sumatra, Indonesia in May

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Visiting Sumatra, Indonesia in May

May has average maximum temperatures of 31°C (88°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 66% making it sunny but overcast at times. The hours of sunshine per day are 7.9hrs making the days quite long and bright. May has total rainfall of 21.3cm (8.4inches) making it quite rainy but mostly with moderate tropical showers. There are only 14.5 days with some rainfall so you can still enjoy the beach on the many clear days. It is a good time for sunbathing in Sumatra. Sea temperatures are a very warm 30°C (86°F). May is an excellent month for swimming in Sumatra with very comfortable temperatures for bathing all day.

Consider visiting Sumatra in the months of June, July, August, September, for the best beach weather.

Also consider one of our other suggestions for May.

Can you sunbathe in Sumatra in May?

Yes, May is a good time for sunbathing in Sumatra.

May has average maximum temperatures of 31°C (88°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 66% making it sunny but overcast at times. The hours of sunshine per day are 7.9hrs making the days quite long and bright. May has total rainfall of 21.3cm (8.4inches) making it quite rainy but mostly with moderate tropical showers. There are only 14.5 days with some rainfall so you can still enjoy the beach on the many clear days.

More about May temperature and sunshine.

Can you swim in Sumatra in May?

Yes, May is an excellent month for swimming in Sumatra with very warm sea temperatures 30°C (86°F).

More about May sea temperatures.

Is May a good time to holiday in Sumatra?

Yes, May is a good time for a holiday in Sumatra.

May has average maximum temperatures of 31°C (88°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 66% making it sunny but overcast at times. The hours of sunshine per day are 7.9hrs making the days quite long and bright. May has total rainfall of 21.3cm (8.4inches) making it quite rainy but mostly with moderate tropical showers. There are only 14.5 days with some rainfall so you can still enjoy the beach on the many clear days. It is a good time for sunbathing in Sumatra. Sea temperatures are a very warm 30°C (86°F). May is an excellent month for swimming in Sumatra with very comfortable temperatures for bathing all day.

More about the May temperatures and sunshine.

Is Sumatra warm in May?

Yes, Sumatra is very hot and perfect for sunbathing on clear days in May.

The average maximum temperature in Sumatra in May is 31°C (88°F). The average maximum temperature is 31°C (88°) in the previous month and 32°C (89°F) in the next month.

The average temperature in Sumatra in May is 27°C (81°F). The average temperature is 27°C (81°F) in the previous month and 28°C (82°F) in the next month.

More info about the May temperatures and sunshine.

How sunny is Sumatra in May?

The average day light hours per day in Sumatra in May are 12. The sunshine percentage is 66% making it sunny but overcast at times. The hours of sunshine per day are 7.9hrs making the days quite long and bright.

More about May sunshine.

Temperature in Sumatra in May

The average maximum temperature in Sumatra in May is 31°C (88°F). The average maximum temperature is 31°C (88°F) in the previous month and 32°C (89°F) in the next month.

The average temperature in Sumatra in May is 27°C (81°F). The average temperature 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 May is 23°C (74°F). The minimum temperature is 23°C (74°F) in the previous month and 23°C (74°F) in the next month.

Sunshine in Sumatra in May

During May the average day light hours are 12 per day in Sumatra. The sunshine percentage is 66% making it sunny but overcast at times. The hours of sunshine per day are 7.9hrs making the days quite long and bright.

The ultraviolet index in Sumatra in May is typically 12.4 during May. 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 May

The average sea water temperature in Sumatra in May is 29.9°C (85.8°F) which is very warm and ideal for relaxing and swimming for the whole day.

Rainfall in Sumatra in May

The average total rainfall in Sumatra in May is 21.3cm (8.4inches) and on average there are 14.5 rainy days in May making it a pretty wet time to visit the beach.

Humidity in Sumatra in May

The maximum dew point (an indicator of humidity) in Sumatra in May is 26°C (78°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 25°C (25°F) in the next month.

The average maximum relative humidity in Sumatra in May is typically 97%. The maximum relative humidity is 97% in the previous month and 95.9% in the next month.

The average relative humidity in Sumatra in May is typically 86.6%. The average relative humidity is 86.3% in the previous month and 83% in the next month.

Wind Speed in Sumatra in May

The average maximum wind speed in Sumatra in May is typically 18KM/H (11MPH). The average maximum wind speed is 17KM/H (10MPH) in the previous month and 25KM/H (16MPH) in the next month.

The average wind speed in Sumatra in May is typically 4KM/H (2MPH). The average wind speed is 4KM/H (2MPH) in the previous month and 6KM/H (4MPH) in the next month.

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

Monthly Averages

Suggested Beaches in May

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Need Inspiration?

Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.