Islamabad weather in September
Pakistan

September in Islamabad: hot, a little rain, with poor air quality — fine if you can take poor air.
#8 of 12 months in Islamabad · #950 of 1383 destinations to visit in September · comfort 70/100 (tier B)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Islamabad in September
Other months in Islamabad
The forum's April advice for Islamabad is specific about which half of the month: early April suits a walking trip, while late April is already turning hot across the plains — Lahore, Peshawar and Islamabad alike. The record puts the month at about 28°C by day cooling to 15 at night, with rain on roughly eight days. Two days is what regulars allocate to Islamabad and Rawalpindi together. April's other argument is what it opens up north: spring reaches Chitral and the Kalash valleys this month, so it is the natural month to pair the capital with the mountains rather than linger in the heat.
Add your own note from Islamabad's card on the map.
Islamabad climate normals — September
| Daytime high | 32°C / 90°F | 🥵 hot |
|---|---|---|
| Nighttime low | 22°C / 72°F | |
| Rainfall | 50 mm / 2 in | 🌦 some rain |
| Rainy days | 9 days | |
| Humidity | 60% | 💧 humid |
| Dew point | 19°C / 66°F | |
| Sunshine | 11 h/day | |
| Daylight | 12.4 h | |
| Wind | 10 km/h / 6 mph | |
| Air quality (US AQI) | 111 | 😷 poor |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Islamabad in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Shoulder seasonschool holidays in 3 of the markets that fill it, an ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Islamabad's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherIslamabad's best weather comes in April, October and November — separate windows, not one continuous season.
Best weatherFair weatherToughest weather
Where is Islamabad?
Islamabad in September — FAQ
- Is September a good time to visit Islamabad?
- September in Islamabad: hot, a little rain, with poor air quality — fine if you can take poor air. It ranks #8 of 12 months for Islamabad on SeasonMap's comfort score (70/100).
- What is the weather like in Islamabad in September?
- In September, Islamabad averages a daily high of 32.4°C and a low of 22.3°C, with about 50.1 mm of rain over roughly 8.8 rainy days.
- What is the air quality in Islamabad in September?
- Islamabad has a mean US Air Quality Index of about 111 in September.