The weather in September in Siriyativu

It's hot in September in Siriyativu with an average temperature of 33°C. Temperatures this month range from a low of 32°C to a high of 34°C. At night, you can expect temperatures between 25°C and 27°C.

Looking for sun? September isn’t a good month to be in Siriyativu. 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 Siriyativu, 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 40°C in 2019, Siriyativu reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 28°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 23°C to a highest value of 28°C.

Rainfall amount

In September, there is an average of 101 mm of precipitation, spread over 13 days. The wind speed is around 3 Bft, mostly coming from the South.

Daily weather in September for Siriyativu

Click on any day in September to get detailed info about the usual weather on that day in Siriyativu. Check out the historical temperatures and precipitation over the past 10 years on this day.

1

33° / 26°

2

33° / 26°

3

33° / 26°

4

33° / 26°

5

33° / 26°

6

34° / 26°

7

34° / 26°

8

33° / 26°

9

34° / 26°

10

34° / 26°

11

34° / 26°

12

33° / 26°

13

34° / 26°

14

33° / 26°

15

33° / 26°

16

33° / 26°

17

34° / 27°

18

34° / 27°

19

33° / 26°

20

34° / 26°

21

34° / 26°

22

33° / 26°

23

33° / 26°

24

33° / 26°

25

32° / 26°

26

33° / 26°

27

32° / 26°

28

32° / 26°

29

33° / 26°

30

32° / 25°

Start of September

The month of September starts in Siriyativu with hot temps, averaging around 34°C during the day and nights around 26°C.

Mid September

By mid-September, daytime temps stay steady at around 34°C, with nights around 27°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.

End of September

By the end of September, the average daytime temperature in Siriyativu is around 33°C, while nighttime temps are about 26°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.

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.

Check out the climate of Siriyativu for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in September in Siriyativu, 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 Siriyativu

Temperature in September in Siriyativu over the years

Precipitation charts

These charts show the average amount of precipitation in September in Siriyativu, 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 Siriyativu

Total precipitation in September in Siriyativu over the years

Daily UV index in September in Siriyativu

This chart shows the average daily UV index in September in Siriyativu, 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.

Have you been to Siriyativu in September?

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Average weather in Siriyativu by month

Click on a month below to see detailed weather info for Siriyativu. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.