Climate averages 1991–2020
Islamabad weather
in September.
A hot, moderately wet month: the 5th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Islamabad: daytime highs average 30.7°C and nights cool to about 20.8°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 69 mm of rain on roughly 8 days, which makes September a moderately wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 25 min on an average September day.
The nearest other city in this atlas is Rawalpindi (14 km away). In September its highs average 31.3°C, 0.5°C warmer than Islamabad, with 79 mm of rain.
Among the 166 cities listed in Pakistan, Islamabad ranks 159th of 166 for the warmest September highs and joint 127th of 166 for the driest September (rainfall, lowest first). The mean September high of those 166 cities is 34.5°C; Islamabad is 3.8°C cooler than that mean.
From September to October, average highs fall by 2.7°C to 28.0°C, and monthly rainfall falls from 69 mm to 29 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
Islamabad climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 15.4°C4.0°C | 4.0°C | 70 | 6.6 | 10.210 h |
| February | 17.4°C6.1°C | 6.1°C | 116 | 8.9 | 11.011 h |
| March | 21.9°C10.2°C | 10.2°C | 124 | 10.1 | 12.012 h |
| April | 27.6°C14.9°C | 14.9°C | 82 | 8.5 | 13.013 h |
| May | 33.4°C19.9°C | 19.9°C | 37 | 7.5 | 13.914 h |
| June | 35.8°C23.7°C | 23.7°C | 61 | 7.7 | 14.414 h |
| July | 32.7°C24.5°C | 24.5°C | 163 | 18.0 | 14.214 h |
| August | 31.1°C23.6°C | 23.6°C | 164 | 17.7 | 13.413 h |
| September, selected | 30.7°C20.8°C | 20.8°C | 69 | 8.4 | 12.412 h |
| October | 28.0°C15.4°C | 15.4°C | 29 | 3.3 | 11.411 h |
| November | 22.3°C9.9°C | 9.9°C | 30 | 3.2 | 10.410 h |
| December | 17.9°C5.6°C | 5.6°C | 31 | 3.3 | 10.010 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
- Rawalpindi in SeptemberPakistan · 14 kmHigh 31.3°C · Low 20.9°C · 79 mm rain
- Fatehjang in SeptemberPakistan · 41 kmHigh 31.0°C · Low 21.2°C · 99 mm rain
- Abbottabad in SeptemberPakistan · 50 kmHigh 26.5°C · Low 16.4°C · 94 mm rain
- Topi in SeptemberPakistan · 55 kmHigh 31.4°C · Low 22.1°C · 94 mm rain
- Dhirkot in SeptemberPakistan · 61 kmHigh 23.9°C · Low 13.2°C · 106 mm rain
- Attock City in SeptemberPakistan · 63 kmHigh 31.7°C · Low 22.1°C · 107 mm rain
- Swabi in SeptemberPakistan · 69 kmHigh 31.4°C · Low 21.8°C · 94 mm rain
- Tordher in SeptemberPakistan · 76 kmHigh 32.0°C · Low 22.4°C · 100 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 Islamabad) is explained once on the Islamabad year overview and on the Sources, method and limits page.