Sri LankaAverage weather for Mannar in September
It's hot in September in Mannar with an average temperature of 31°C. Temperatures this month range from a low of 30°C to a high of 31°C. At night, you can expect temperatures between 26°C and 28°C.
Start of September
The month of September starts in Mannar with hot temps, averaging around 31°C during the day and nights around 27°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
Mid September
By mid-September, daytime temps stay steady at around 31°C, with nights around 27°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
End of September
By the end of September, the average daytime temperature in Mannar is around 31°C, while nighttime temps are about 27°C. A shower might pop up, but overall, the weather will be dry and sunny. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
In September, there is an average of 91 mm of precipitation, spread over 10 days. The wind speed is around 5 Bft, mostly coming from the Southwest.
Mannar in September |
New York | ||
|---|---|---|---|
 Average temperature |
31°C | 27°C | |
 Max. temperature |
31°C | 31°C | |
| Min. temperature |
30°C | -5°C | |
 Total precipitation |
91 mm | 57 mm | |
| Rainy days |
10 days | 9 days | |
August
UV index
The UV index is a maximum of 10 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is September a good time to visit Mannar?
September is a good month to be in Mannar for sunny weather. You’ll have high temperatures and not too much rain.
Temperature records
With 34°C in 2016, Mannar reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 27°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of 22°C to a highest value of 29°C.
Check out the climate of Mannar for all months and discover the best travel time
Daily Temperature in September in Mannar
This chart shows the average daily high and low temperatures in September for Mannar, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in September in Mannar
The chart below shows the average daily precipitation in September for Mannar, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 10 days of precipitation in Mannar.
Daily UV index in September in Mannar
This chart shows the average daily UV index in September in Mannar, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in Mannar over the years
This chart shows the average temperature in September in Mannar, measured in degrees Celsius, over the past few years.
Total precipitation in September in Mannar over the years
This chart shows the average precipitation in September in Mannar, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in September for Mannar
Click on any day in September to get detailed info about the usual weather on that day in Mannar. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Mannar
Have you been to Mannar in September?
Share your weather experience in September in Mannar.
Average weather in Mannar by month
Click on a month below to see detailed weather info for Mannar. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
