Sri LankaThe weather in September in Saint Joneswatta
It's warm in September in Saint Joneswatta with an average temperature of 29°C. Temperatures this month range from a low of 28°C to a high of 29°C. At night, you can expect temperatures between 19°C and 20°C.
Looking for sun? September isn’t a good month to be in Saint Joneswatta. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Saint Joneswatta, Sri Lanka. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 33°C in 2015, Saint Joneswatta reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 20°C in 2023. The extreme nighttime temperatures ranged from a lowest recorded value of 13°C to a highest value of 23°C.
Rainfall amount
In September, there is an average of 356 mm of precipitation, spread over 28 days. The wind speed is around 3 Bft, mostly coming from the Southwest.
Daily weather in September for Saint Joneswatta
Click on any day in September to get detailed info about the usual weather on that day in Saint Joneswatta. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Saint Joneswatta | New York | |
|---|---|---|
| Average temperature | 29°C | 27°C |
| Max. temperature | 29°C | 31°C |
| Min. temperature | 19°C | -5°C |
| Total precipitation | 356 mm | 57 mm |
| Rainy days | 28 days | 9 days |
Start of September
The month of September starts in Saint Joneswatta with hot temps, averaging around 29°C during the day and nights around 19°C.
Mid September
By mid-September, daytime temps stay steady at around 29°C, with nights around 20°C. There’s a high chance of precipitation during this time.
End of September
By the end of September, the average daytime temperature in Saint Joneswatta is around 29°C, while nighttime temps are about 19°C. There’s a significant chance of many days with precipitation.
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Saint Joneswatta for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in September in Saint Joneswatta, Sri Lanka. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Saint Joneswatta
Temperature in September in Saint Joneswatta over the years
Precipitation charts
These charts show the average amount of precipitation in September in Saint Joneswatta, Sri Lanka. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in Saint Joneswatta
Total precipitation in September in Saint Joneswatta over the years
Daily UV index in September in Saint Joneswatta
This chart shows the average daily UV index in September in Saint Joneswatta, 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.
Weather experiences in September in Saint Joneswatta
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Average weather in Saint Joneswatta by month
Click on a month below to see detailed weather info for Saint Joneswatta. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.