Mannar Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Mannar.
Climate overview of Mannar
With consistently stable weather, Mannar, Mannar District, Sri Lanka, sees little seasonal temperature change. Daytime highs average 30°C (86°F), ranging from 32°C (90°F) in April to 29°C (84°F) in January.
The city has a wet climate, receiving around 1070 mm (42 in) of rainfall per year. Despite the high annual total, it has two distinct dry seasons, February to March and June to August. November is the wettest month.
Mannar Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mannar - and find the best time to visit.
Monthly Temperature in Mannar
The climate in Mannar remains fairly constant, offering very warm temperatures throughout the year. On average, daytime temperatures range from a very warm 32°C (90°F) in April to a comfortable 29°C (84°F) in January.
Nighttime temperatures range from 28°C (82°F) in April to 24°C (75°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Mannar
Mannar is known for its substantial rainfall, with annual precipitation reaching 1070 mm (42 in). The seasons in Mannar bring significant changes in precipitation. The wettest month, November, receives heavy rainfall, with an average of 269 mm (11 in) of precipitation. This rainfall is distributed across 13 rainy days.
In contrast, the driest month, July, experiences much less rainfall, totaling 25 mm (1 in) over 2 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Mannar Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Mannar
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: January
- Warmest weather: March, April, May, June, July, August and September
- Fewer rainy days: February, March, June, July and August
- Wettest months: October, November and December, when rainfall is highest.
- Seasonal pattern: Two distinct dry seasons, February to March and June to August
Frequently asked questions about the climate in Mannar
What is the best time to visit Mannar?
January typically offers the most optimal weather in Mannar. In contrast, October and November tend to have less optimal conditions. Mannar has two distinct dry seasons, February to March and June to August.
What temperatures can I expect in Mannar?
Daytime highs range from 29°C (84°F) in January to 32°C (90°F) in April. Nighttime lows range from 24°C (75°F) to 28°C (82°F). Temperatures stay relatively stable year-round.
How much rain does Mannar get?
Annual rainfall is around 1070 mm (42 in). November is the wettest month with 269 mm (11 in), while July is the driest with 25 mm (1 in).
Mannar 3-Day Forecast
Mannar on the map
Mannar is highlighted - select any city to see its climate.
Popular this month
Where to go in August - average daytime high across popular destinations.
Colombo
30°C (86°F) Negombo30°C (86°F) Mirissa29°C (84°F) Unawatuna29°C (84°F) Hikkaduwa29°C (84°F) Galle29°C (84°F) Kandy
29°C (84°F) Nuwara Eliya28°C (82°F) 
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