Weather in Unawatuna, Sri Lanka in September

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Visiting Unawatuna, Sri Lanka in September

September has average maximum temperatures of 30°C (86°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 72% making it sunny and pleasant most of the time. The hours of sunshine per day are 8.8hrs making the days long and bright. It is a good time for sunbathing in Unawatuna.

September has total rainfall of 23.8cm (9.4inches) making it quite rainy but mostly with moderate tropical showers. There are only 13.8 days with some rainfall so you can still enjoy the beach on the many clear days.

Sea temperatures are a very warm 28°C (83°F). September is an excellent month for swimming in Unawatuna with very comfortable temperatures for bathing all day. The sea temperature in September is slightly warmer than the previous month.

Consider visiting Unawatuna in the months of January, February, March, July, for the best beach weather. Also consider one of our other suggestions for September.

Can you sunbathe in Unawatuna in September?

Yes, September is a good time for sunbathing in Unawatuna.

September has average maximum temperatures of 30°C (86°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 72% making it sunny and pleasant most of the time. The hours of sunshine per day are 8.8hrs making the days long and bright. September has total rainfall of 23.8cm (9.4inches) making it quite rainy but mostly with moderate tropical showers. There are only 13.8 days with some rainfall so you can still enjoy the beach on the many clear days.

More about September temperature and sunshine.

Can you swim in Unawatuna in September?

Yes, September is an excellent month for swimming in Unawatuna with very warm sea temperatures 28°C (83°F).

More about September sea temperatures.

Is September a good time to holiday in Unawatuna?

Yes, September is a good time for a holiday in Unawatuna.

September has average maximum temperatures of 30°C (86°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 72% making it sunny and pleasant most of the time. The hours of sunshine per day are 8.8hrs making the days long and bright. September has total rainfall of 23.8cm (9.4inches) making it quite rainy but mostly with moderate tropical showers. There are only 13.8 days with some rainfall so you can still enjoy the beach on the many clear days. It is a good time for sunbathing in Unawatuna. Sea temperatures are a very warm 28°C (83°F). September is an excellent month for swimming in Unawatuna with very comfortable temperatures for bathing all day.

More about the September temperatures and sunshine.

Is Unawatuna warm in September?

Yes, Unawatuna is very warm and perfect for sunbathing on clear days in September.

The average maximum temperature in Unawatuna in September is 30°C (86°F). The average maximum temperature is 30°C (86°) in the previous month and 30°C (86°F) in the next month.

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

More info about the September temperatures and sunshine.

How sunny is Unawatuna in September?

The average day light hours per day in Unawatuna in September are 12.2. The sunshine percentage is 72% making it sunny and pleasant most of the time. The hours of sunshine per day are 8.8hrs making the days long and bright.

More about September sunshine.

Temperature in Unawatuna in September

The average maximum temperature in Unawatuna in September is 30°C (86°F). The average maximum temperature is 30°C (86°F) in the previous month and 30°C (86°F) in the next month.

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

The average minimum temperature in Unawatuna in September is 25°C (78°F). The minimum temperature is 26°C (79°F) in the previous month and 25°C (76°F) in the next month.

Sunshine in Unawatuna in September

The days in September are marginally shorter than the previous month and days continue to get marginally shorter into October. September has marginally more hours of sunshine than the previous month and hours of sunshine continue to rise slightly into October. During September the average day light hours are 12.2 per day in Unawatuna. The sunshine percentage is 72% making it sunny and pleasant most of the time. The hours of sunshine per day are 8.8hrs making the days long and bright.

The ultraviolet index in Unawatuna 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 Unawatuna in September

The average sea water temperature in Unawatuna in September is 28.3°C (82.9°F) which is very warm and ideal for relaxing and swimming for the whole day. The sea temperature in September is slightly warmer than the previous month.

Rainfall in Unawatuna in September

September weather is much wetter than the previous month and rainfall continues to rise slightly into October. September has a few more days of rain than the previous month and rainy days continue to rise quickly into October. The average total rainfall in Unawatuna in September is 23.8cm (9.4inches) and on average there are 13.8 rainy days in September making it a pretty wet time to visit the beach.

Humidity in Unawatuna in September

The maximum dew point (an indicator of humidity) in Unawatuna in September is 25°C (76°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 Unawatuna in September is typically 90.1%. The maximum relative humidity is 87.6% in the previous month and 92.8% in the next month.

The average relative humidity in Unawatuna in September is typically 79.8%. The average relative humidity is 78.7% in the previous month and 81.1% in the next month.

Wind Speed in Unawatuna in September

The average maximum wind speed in Unawatuna in September is typically 22KM/H (14MPH). The average maximum wind speed is 23KM/H (14MPH) in the previous month and 19KM/H (12MPH) in the next month.

The average wind speed in Unawatuna in September is typically 13KM/H (8MPH). The average wind speed is 15KM/H (9MPH) in the previous month and 10KM/H (6MPH) in the next month.

The average wind direction in Unawatuna in September is from the South West.

Monthly Averages

Suggested Beaches in September

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

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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.