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Jaffna Weather in September
During September, Jaffna experiences very high daytime temperatures of 31°C (88°F) and cooler nights around 27°C (81°F). Expect quite a bit of rainfall. Around 77 mm (3 in) is typical.
Rainfall in Jaffna in September
Analyzing past climate data, one can expect approximately 4 days of rain, averaging 77 mm (3 in). Rainfall tends to arrive in short, intense showers this month. Rain days are few, but the showers can be surprisingly heavy.
Temperature in Jaffna in September
In September, Jaffna sees very high temperatures, with highs of 31°C (88°F). Nights drop to around 27°C (81°F). If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. With lows of 27°C (81°F), it stays warm throughout the night. A cold shower before going to sleep is one of the easiest ways to cool down before bed.For Jaffna itself, January and February generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Jaffna Temperature in September
Min Temperature
27°C (81°F)
Max Temperature
31°C (88°F)
Chance of Rain
12%
Precipitation
77 mm (3 in)
Rainy days
4 days
Jaffna Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Jaffna - and find the best time to visit.
Historical weather records for Jaffna in September
Browse day-by-day weather records for Jaffna spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Jaffna historical weather extremes in September
Based on 21 years of weather observations in Jaffna between 2005 and 2026, these are the recorded extremes.
- The warmest day in September was on September 14, 2024, with a maximum of 34°C (93°F).
- Jaffna experienced its chilliest September day on September 6, 2013, reaching only 28°C (82°F).
- The lowest overnight temperature recorded in September was 22°C (72°F) (September 29, 2020).
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 Jaffna in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Rain is likely on several days, so bring a good rain jacket.
What To Do in Jaffna in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling7/10 -
Walking7/10 -
Camping7/10 -
Outdoor sports7/10
Jaffna 3-Day Forecast
More climate data for Jaffna
See the full Jaffna 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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