Monthly weather forecast and climate
Arugam Bay, Sri Lanka LK

Warmest months (with the highest average high temperature) are April, May, June and July (32°C).
Months with the lowest average high temperature are January and December (29°C).

Months with the highest average low temperature are April, May, June, July and August (25°C).
Coldest months (with the lowest average low temperature) are January, February and December (23°C).

The wettest month (with the highest rainfall) is December (311mm).
The driest month (with the lowest rainfall) is June (38mm).

The month with the highest number of rainy days is November (15 days).
Months with the lowest number of rainy days are February and March (5 days).

The best month for swimming (with the highest average sea temperature) is April (30°C).
Coldest months (with the lowest average sea temperature) are January, February, July, August, September and December (28°C).

Months with the longest days are June and July (Average daylight: 12.5h).
The month with shortest days is December (Average daylight: 11.7h).

Months with most sunshine are February, March and April (Average sunshine: 8h).
Months with least sunshine are May, June, July, August, September, October, November and December (Average sunshine: 6).

Months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
Months with the lowest UV index are January, November and December (UV index 11).