Karachi weather in September
Temperature, sea and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Good
Best time to visit: December – February
What is the weather like in Karachi in September?
In September, Karachi is hot: daytime highs average 31 °C, and even at night it stays warm at around 26 °C. The sea averages 27.8 °C – lovely and warm for swimming. Expect around 6 hours of sunshine a day. Rain is rare: about 2 days bring 20 mm in total. On about 23 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is a good month for a holiday in Karachi.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 63 | 63 | 59 |
| Day | 31° | 31° | 33° |
| Night | 27° | 26° | 24° |
| Sea | 28° | 28° | 28° |
| Sun | 5 h | 6 h | 8 h |
| Rain days | 4 | 2 | 1 |
More details for September
- Daylight
- 12 h 20 min06:17 – 18:37
- UV index
- 10 · very highclear sky, noon (estimate)All months
- Muggy days
- 30 daysdew point 18 °C or moreAll months
- Wind
- 25 km/haverage daily peakAll months
- Cloud cover
- 42 %on averageAll months
- Hot days
- 23 days30 °C or moreAll months
- Time zone
- UTC+5Asia/Karachi
How the score comes together
- Temperatureweight 50 %45 %
- Sunshineweight 20 %53 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in September
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
Karachi in September: quick answers
Is Karachi hot in September?
Yes. In September, Karachi is hot: daytime highs average 31 °C and nights stay around 26 °C. On about 23 days the thermometer climbs to 30 °C or more.
Can you swim in Karachi in September?
Yes. In September the sea averages 27.8 °C – lovely and warm for swimming.
Does it rain much in Karachi in September?
Rain is rare: about 2 days bring 20 mm in total.
Karachi month by month
The whole year in KarachiAll destinations: PakistanWhere to go in SeptemberSea temperature in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences