Mannar Island in september: average Weather, Temperature and Climate
Weather in Mannar Island in september 2025
The weather in Mannar Island in the month of september comes from statistical datas on the past years. You can view the weather statistics the entire month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
good weather UV index: 7
Weather at 6am
85°F
Partly Cloudy
33% of time
32%
25%
5%
Weather at 12pm
86°F
Clear/Sunny
56% of time
23%
16%
4%
Weather at 6pm
83°F
Clear/Sunny
38% of time
35%
19%
4%
Weather at 3am
83°F
39%
29%
13%
13%
Evolution of daily average temperature and precipitation in Mannar Island in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Mannar Island in september.
The climate of Mannar Island in september is good
The climate in september in Mannar Island is wet (with 4.1in of precipitation over 6 days). It should be noted a worsening from the previous month since in august there is an average of 3.5in of precipitation over 5 days.
The climate enjoyable in that area this month. The thermometer averaged maximum of 86°F. On average, the recorded minimum temperature is 85°F. Thus, the mean temperature average in september in Mannar Island is 86°F. Note that these seasonal averages are in contrast with those observed in Mannar Island in the month of september with a maximum record of 92°F in 2017 and a minimum record of 76°F in 2020. You You can hope to have about 21 days with temperatures up to 86°F, or 70 of the month.
On average, in Mannar Island, the days of september last 12:10. Sunrise is at 06:01 and sunset is at 18:11.
With a good weather, this month is recommended to go in this city.
Seasonal average climate and temperature of Mannar Island in september
Check below seasonal norms These statistics are generated from the weather statements of the last years of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 86°F | ||||
| Highest temperature | 86°F | ||||
| Lowest temperature | 85°F | ||||
| Highest record temperature | 92°F (2017) | ||||
| Lowest record temperature | 76°F (2020) | ||||
| Number of days at +86°F | 21 day(s) (70%) | ||||
| Number of days at +65°F | 30 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 83°F | ||||
| Lowest sea temperature | 81°F | ||||
| Highest sea temperature | 85°F | ||||
| Wind | |||||
| Wind speed | 30km/h | ||||
| Wind temperature | 85°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 4.1in | ||||
| Number of days with rainfall | 6 day(s) (19%) | ||||
| Record daily rainfall | 2.2in (2009) | ||||
| Other climate data | |||||
| Humidity | 78% | ||||
| Visibility | 9.67km | ||||
| Cloud cover | 35% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 12 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:01 | ||||
| Time of sunset | 18:11 | ||||
| Length of day | 12:10 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last september?
Here is the day by day recorded weather in Mannar Island in september 2024:
83°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 86°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 86°F
83°F to 86°F
83°F to 86°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
79°F to 86°F
79°F to 88°F
79°F to 85°F
Map: other cities in Sri Lanka in september
Cities near Mannar Island:
| Poonakari in september | good weather |
| Kayts in september | good weather |
| Jaffna in september | good weather |
| Wilpattu National Park in september | good weather |
| Vavuniya in september | good weather |
| Thalayadi in september | good weather |
| Kalpitiya in september | good weather |
| Point Pedro in september | good weather |
| Anuradhapura in september | good weather |
| Mullaitivu in september | good weather |
| Puttalam in september | good weather |
| Arisimale Beach in september | good weather |
Click over cities on the map for information about the weather in september.
Mannar Island
perfect weather
good
tolerable
bad
very bad
Weather data for Mannar Island in september:
Weather data for Mannar Island for september are derived from an average of the weather forecast since 2009 in Mannar Island. There is a margin of error and these forecasts are to be considered as general information only. The weather in Mannar Island can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Mannar Island.