SeasonMapKarachi weather in September
Pakistan
September in Karachi: sweltering, dry, with muggy air — fine if you can take 37°C afternoons.
#8 of 12 months in Karachi · #1023 of 1383 destinations to visit in September · comfort 65/100 (tier C)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Karachi in September
Other months in Karachi
January is Karachi's coolest month and the forum treats that as the whole appeal: 10 to 20°C, mostly sunny days, cold after dusk but nowhere near freezing — moderate next to a northern Pakistan that is genuinely frozen in midwinter. The record puts it at about 23°C by day and 13 overnight, with almost no rain at all. Regulars advise long, loose shirts and trousers rather than shorts; western clothes are fine so long as they are not revealing. Late winter into early spring is their wider recommendation for beating the heat here.
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Karachi climate normals — September
| Daytime high | 33°C / 91°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 27°C / 81°F | |
| Feels like (high) | 37°C / 99°F | |
| Sea temperature | 29°C / 84°F | ♨️ bath-warm |
| Rainfall | 18 mm / 0.7 in | ☀️ dry |
| Rainy days | 3 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 10.6 h/day | |
| Daylight | 12.3 h | |
| Wind | 23 km/h / 14 mph | |
| Air quality (US AQI) | 72 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Karachi 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 Karachi'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 weatherKarachi's weather peaks December–February, best around January.
Best weatherFair weatherToughest weather
What's on in Karachi in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Nature
Green turtle nesting
1 Sep – 31 Jan · usuallyGreen turtles come ashore at Sandspit and Hawke's Bay through these months and the wildlife department runs hatchling releases after dark. It happens twenty minutes from a city of twenty million, which is the remarkable part.
Where is Karachi?
Karachi in September — FAQ
- Is September a good time to visit Karachi?
- September in Karachi: sweltering, dry, with muggy air — fine if you can take 37°C afternoons. It ranks #8 of 12 months for Karachi on SeasonMap's comfort score (65/100).
- What is the weather like in Karachi in September?
- In September, Karachi averages a daily high of 33°C and a low of 27.3°C, with about 18.1 mm of rain over roughly 2.9 rainy days.
- What is the air quality in Karachi in September?
- Karachi has a mean US Air Quality Index of about 72 in September.