Climate averages 1991–2020
Thrissur weather
in September.
A hot, very wet month: the 9th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Thrissur: daytime highs average 28.5°C and nights cool to about 23.8°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 244 mm of rain on roughly 24 days, which makes September a very wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 11 min on an average September day.
The nearest other city in this atlas is Ponnāni (42 km away). In September its highs average 28.6°C, about as warm as Thrissur, with 253 mm of rain.
Among the 692 cities listed in India, Thrissur ranks joint 600th of 692 for the warmest September highs and joint 617th of 692 for the driest September (rainfall, lowest first). The mean September high of those 692 cities is 30.7°C; Thrissur is 2.1°C cooler than that mean.
From September to October, average highs rise by 0.6°C to 29.1°C, and monthly rainfall rises from 244 mm to 271 mm.
The annual picture
September 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
Thrissur climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 33.1°C23.2°C | 23.2°C | 6.7 | 1.5 | 11.612 h |
| February | 34.1°C24.0°C | 24.0°C | 14 | 3.0 | 11.812 h |
| March | 34.3°C25.2°C | 25.2°C | 47 | 10.2 | 12.112 h |
| April | 32.5°C25.7°C | 25.7°C | 129 | 23.2 | 12.412 h |
| May | 30.7°C25.5°C | 25.5°C | 237 | 26.0 | 12.613 h |
| June | 28.3°C24.4°C | 24.4°C | 493 | 29.4 | 12.713 h |
| July | 27.7°C23.8°C | 23.8°C | 479 | 29.7 | 12.713 h |
| August | 27.8°C23.7°C | 23.7°C | 359 | 28.4 | 12.512 h |
| September, selected | 28.5°C23.8°C | 23.8°C | 244 | 23.7 | 12.212 h |
| October | 29.1°C23.6°C | 23.6°C | 271 | 25.5 | 11.912 h |
| November | 29.9°C23.5°C | 23.5°C | 134 | 15.2 | 11.712 h |
| December | 31.2°C23.2°C | 23.2°C | 34 | 4.8 | 11.512 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
September in nearby cities
- Ponnāni in SeptemberIndia · 42 kmHigh 28.6°C · Low 23.8°C · 253 mm rain
- Edattala in SeptemberIndia · 54 kmHigh 28.3°C · Low 23.3°C · 269 mm rain
- Palakkad in SeptemberIndia · 56 kmHigh 29.0°C · Low 23.0°C · 117 mm rain
- Malappuram in SeptemberIndia · 60 kmHigh 28.3°C · Low 22.9°C · 248 mm rain
- Kanayannur in SeptemberIndia · 61 kmHigh 27.8°C · Low 24.2°C · 262 mm rain
- Manjeri in SeptemberIndia · 68 kmHigh 28.2°C · Low 22.7°C · 248 mm rain
- Valparai in SeptemberIndia · 83 kmHigh 23.5°C · Low 18.2°C · 356 mm rain
- Pollachi in SeptemberIndia · 88 kmHigh 28.9°C · Low 22.1°C · 81 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 Thrissur) is explained once on the Thrissur year overview and on the Sources, method and limits page.