WEATHER · CLIMATE NORMALS · 1991–2020
Karachi Climate — Averages by Month
What the weather in Karachi, PKaverages across a standard 30-year period. Each month's figure is the 1991–2020 mean temperature and total rainfall from the ERA5 reanalysis — the long-run normal a place settles around, not a forecast for any particular day.
Month-by-month normals
| Month | Avg temperature | Avg rainfall |
|---|---|---|
| January | 19.9 °C · coldest | 4.9 mm |
| February | 21.7 °C | 4.7 mm |
| March | 24.8 °C | 2.6 mm |
| April | 27.5 °C | 0.9 mm |
| May | 29.4 °C | 1.8 mm |
| June | 30.1 °C · warmest | 11.2 mm |
| July | 29.2 °C | 53.3 mm · wettest |
| August | 28.2 °C | 53.3 mm |
| September | 28.0 °C | 14.5 mm |
| October | 28.0 °C | 3.1 mm |
| November | 25.3 °C | 2.7 mm |
| December | 21.5 °C | 2.8 mm |
How to read these numbers
These are reanalysis normals, not readings from a single weather station. They come from the ERA5 0.25° (~25 km) global reanalysis grid, sampled at the grid cell nearest Karachi — centred at 24.75°N, 67.00°E. A reanalysis blends observations with a physics model onto an even grid, so a coastal or mountain city's cell can read a little cooler, warmer, wetter or drier than the city centre itself. The month-to-month shape — when it's hot, when it rains — is what these normals capture best.
“Normal” means the 1991–2020 average, the current World Meteorological Organization standard period. A normal is what a place tends toward over decades — any single day, month or year can and will depart from it.