Weather in September
Temperature
The yearly lowest temperatures occur in June through December, averaging a high-temperature of 30°C (86°F).Rainfall
In September, the rain falls for 14 days. Throughout September, 258mm (10.16") of precipitation is accumulated. Throughout the year, there are 137 rainfall days, and 2572mm (101.26") of precipitation is accumulated.Sea temperature
The months with the coldest seawater in Maha Gonadoowa are July through September, with an average sea temperature of 27°C (80.6°F).Note: Swimming, diving, and other activities in water temperatures between 25°C (77°F) and 29°C (84.2°F) are thought to be quite enjoyable and satisfying for extended periods, with no discomfort.
Daylight
In Maha Gonadoowa, the average length of the day in September is 12h and 10min.On the first day of the month, sunrise is at 06:02 and sunset at 18:17. On the last day of September, in Maha Gonadoowa, sunrise is at 05:57 and sunset at 18:02 +0530.
Sunshine
The months with the least sunshine in Maha Gonadoowa, Sri Lanka, are May through October, with an average of 6h of sunshine.UV index
February through October, with an average maximum UV index of 12, are months with the highest UV index in Maha Gonadoowa, Sri Lanka. A UV Index reading of 11, and higher, represents an extreme threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A daily high UV index of 12 in September leads to these guidelines:
Take all required precautions, as unprotected skin and eyes can burn in minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. After a swim or an outdoor workout, generously apply and regularly reapply a sunscreen with at least SPF 30, even if the day is cloudy. Be mindful! Sand and water reflections can up the Sun's UV exposure.
Frequently asked questions
What is the coldest month in Maha Gonadoowa?
How hot does it get in Maha Gonadoowa in September?
How much does it rain in Maha Gonadoowa in September?
When is the sea coldest in Maha Gonadoowa?
What is the sea water temperature in September in Maha Gonadoowa?
How many hours of daylight does Maha Gonadoowa have in September?
When is the sunrise / sunset in September in Maha Gonadoowa?
What are the months with the least sunshine in Maha Gonadoowa?
How long on average sun shines in September in Maha Gonadoowa?
When is the highest UV index in Maha Gonadoowa?
What is the UV index intensity in September in Maha Gonadoowa?
Average temperature in September
Maha Gonadoowa, Sri Lanka
- Average high temperature in September: 30°C
The warmest month (with the highest average high temperature) is April (32°C).
The months with the lowest average high temperature are June, July, August, September, October, November and December (30°C).
- Average low temperature in September: 25°C
The months with the highest average low temperature are May, June, July, August and September (25°C).
The coldest month (with the lowest average low temperature) is January (22°C).
Average rainfall in September
Maha Gonadoowa, Sri Lanka
- Average rainfall in September: 258mm
The wettest month (with the highest rainfall) is May (393mm).
The driest month (with the least rainfall) is January (65mm).
Average rainfall days in September
Maha Gonadoowa, Sri Lanka
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is October (16 days).
The months with the least rainy days are January and February (5 days).
Average sea temperature in September
Maha Gonadoowa, Sri Lanka
- Average sea temperature in September: 27°C
The best month for swimming (with the highest average sea temperature) is April (30°C).
The coldest months (with the lowest average sea temperature) are July, August and September (27°C).
Average daylight in September /
Average sunshine in September
Maha Gonadoowa, Sri Lanka
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in September: 6h
The months with the most sunshine are February and March (Average sunshine: 9h).
The months with the least sunshine are May, June, July, August, September and October (Average sunshine: 6h).
Average UV index in September
Maha Gonadoowa, Sri Lanka
- Average UV index in September: 12
The months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
The months with the lowest UV index are January, November and December (UV index 11).
Maha Gonadoowa, Sri Lanka
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