Alleppey weather by month
Alleppey runs from about 26°C in June to 29°C in April, with May the wettest month at 1041 mm.
warmest month
April
29°C
coolest month
June
26°C
wettest month
May
1041 mm
worst air month
December
41 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 27°C | 156 mm | 311 h | 39 |
| February | 29°C | 13 mm | 326 h | 39 |
| March | 29°C | 110 mm | 354 h | 31 |
| April | 29°C | 260 mm | 343 h | 24 |
| May | 28°C | 1041 mm | 186 h | 15 |
| June | 26°C | 565 mm | 166 h | 11 |
| July | 26°C | 434 mm | 198 h | 12 |
| August | 26°C | 277 mm | 259 h | 12 |
| September | 27°C | 192 mm | 292 h | 12 |
| October | 26°C | 343 mm | 241 h | 15 |
| November | 27°C | 163 mm | 253 h | 27 |
| December | 27°C | 169 mm | 301 h | 41 |
About 3,230 hours of sun a year. Roughly 254 rainy days a year.
These are long-run climate normals, not a forecast. A given year can sit well outside them. PM2.5 is a global model: near the coast it counts sea salt as fine particulate and reads high against ground stations, sometimes by a factor of two. Use the shape of the year, not the absolute number.
where these numbers come from
- · Temperature, rainfall and sunshine: ECMWF ERA5 reanalysis climate normals via Open-Meteo (CC BY 4.0), fetched once and stored.
- · PM2.5: Copernicus CAMS reanalysis, monthly means. Modelled, not station readings; near coasts CAMS counts sea salt as PM2.5 and reads high.
Last reviewed 2026-05-25. Full method, licences and the list of sources we rejected are on the methodology page.