Climate averages 1991–2020
Jaffna weather
in October.
A hot, very wet month: the 8th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a hot month in Jaffna: daytime highs average 29.0°C and nights cool to about 26.0°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 208 mm of rain on roughly 21 days, which makes October a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 55 min on an average October day.
The nearest other city in this atlas is Point Pedro (30 km away). In October its highs average 29.3°C, about as warm as Jaffna, with 172 mm of rain.
Among the 12 cities listed in Sri Lanka, Jaffna ranks 6th of 12 for the warmest October highs and 6th of 12 for the driest October (rainfall, lowest first). The mean October high of those 12 cities is 29.1°C; Jaffna is 0.1°C cooler than that mean.
From October to November, average highs fall by 1.4°C to 27.6°C, and monthly rainfall rises from 208 mm to 313 mm.
The annual picture
October in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Jaffna climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.8°C24.4°C | 24.4°C | 62 | 6.7 | 11.612 h |
| February | 28.1°C24.8°C | 24.8°C | 26 | 4.3 | 11.812 h |
| March | 30.2°C25.9°C | 25.9°C | 22 | 3.3 | 12.112 h |
| April | 31.4°C27.3°C | 27.3°C | 45 | 7.5 | 12.312 h |
| May | 31.2°C28.1°C | 28.1°C | 58 | 7.6 | 12.613 h |
| June | 30.7°C27.9°C | 27.9°C | 27 | 5.6 | 12.713 h |
| July | 30.5°C27.5°C | 27.5°C | 33 | 9.0 | 12.613 h |
| August | 30.3°C27.1°C | 27.1°C | 48 | 10.4 | 12.412 h |
| September | 30.1°C26.9°C | 26.9°C | 67 | 12.1 | 12.212 h |
| October, selected | 29.0°C26.0°C | 26.0°C | 208 | 20.9 | 11.912 h |
| November | 27.6°C25.1°C | 25.1°C | 313 | 22.1 | 11.712 h |
| December | 26.8°C24.7°C | 24.7°C | 199 | 16.3 | 11.612 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
October in nearby cities
- Point Pedro in OctoberSri Lanka · 30 kmHigh 29.3°C · Low 25.8°C · 172 mm rain
- Pattukkottai in OctoberIndia · 113 kmHigh 31.5°C · Low 24.4°C · 186 mm rain
- Nagapattinam in OctoberIndia · 123 kmHigh 29.9°C · Low 25.7°C · 207 mm rain
- Kāraikāl in OctoberIndia · 140 kmHigh 30.0°C · Low 25.7°C · 200 mm rain
- Kāraikkudi in OctoberIndia · 143 kmHigh 31.7°C · Low 24.1°C · 191 mm rain
- Pudukkottai in OctoberIndia · 152 kmHigh 31.8°C · Low 24.1°C · 178 mm rain
- Paramagudi in OctoberIndia · 156 kmHigh 32.1°C · Low 24.4°C · 207 mm rain
- Thanjavur in OctoberIndia · 156 kmHigh 31.9°C · Low 24.4°C · 174 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Jaffna) is explained once on the Jaffna year overview and on the Sources, method and limits page.