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Mannar Weather in September
With daytime temperatures of 30°C (86°F) and nighttime lows of 27°C (81°F), September in Mannar brings very high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 64 mm (2.5 in) falls on average.
Rainfall in Mannar in September
Looking at the last 30 years, the data shows about 4 days with rain, averaging 64 mm (2.5 in) for the month. When rain does fall this month, it tends to come down hard. The low number of rain days makes each shower more significant.
Temperature in Mannar in September
Daytime highs in Mannar in September reach 30°C (86°F), with nights around 27°C (81°F). For most visitors, the main thing to prepare for is the heat during the day. At 27°C (81°F) overnight, the heat doesn't let up much after dark. If you're staying somewhere without air conditioning, a cold shower before bed and keeping the air moving can help.If your ideal day consists of dry skies and pleasant temperatures, January typically offers the best circumstances for Mannar.
Mannar Temperature in September
Min Temperature
27°C (81°F)
Max Temperature
30°C (86°F)
Chance of Rain
12%
Precipitation
64 mm (2.5 in)
Rainy days
4 days
Mannar Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mannar - and find the best time to visit.
Best Places in Sri Lanka in September
Find out more about the weather in Sri Lanka and which places have the best travel conditions in this month. See all of Sri Lanka in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Mannar in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Rain gear is recommended, you can expect wet weather on multiple days.
What To Do in Mannar in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling8/10 -
Walking8/10 -
Camping7/10 -
Outdoor sports8/10
Mannar 3-Day Forecast
More climate data for Mannar
See the full Mannar climate overview or explore weather in Sri Lanka.
Popular in September
Where to go in September - average daytime high across popular destinations.
Colombo
30°C (86°F) Galle29°C (84°F) Mirissa29°C (84°F) Hikkaduwa29°C (84°F) Negombo30°C (86°F) Kandy
29°C (84°F) Unawatuna29°C (84°F) Nuwara Eliya28°C (82°F) Bucket list
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