Weather in Karachi

Karachi is in Pakistan at 24.9°N. The 2001–2020 NASA POWER daily record describes a dry, semi-arid climate. Rain is a year that totals only 202 mm of rain. The wettest month is August at 73 mm; the driest is April at 1 mm.

June is the warmest month (average 31.1°C, high 34.0°C) and January is the coolest (average 20.0°C, low 15.4°C). From the coolest night in January (15.4°C) to the hottest afternoon in June (34.1°C), the raw range is 18.7°C. On this site the months that score closest to a 22°C day, lighter rain, and moderate humidity are February, March, and December.

Rain through the year

Karachi is dry. The whole year adds up to 202 mm. August is the “wet” month at 73 mm; April drops to 1 mm.

Humidity peaks near 78%. That usually lines up with the wetter months rather than the hottest ones.

Temperature through the year

Monthly average highs run from 24.7°C in January to 34.0°C in June. Nights follow the same curve: 15.4°C in January and 28.1°C in June.

Across the year the mean afternoon high is 30.7°C. If you want the smallest day–night shock, look at months where the high and low sit close together; June nights still hold 28.1°C.

The calendar in Karachi

The year bottoms out in January. Plan for 15.4°C at night and 24.7°C in the afternoon. April is the driest month, averaging only 1 mm across 0 rainy days. Highs sit near 33.2°C. Peak heat arrives in June: 34.0°C by day, 28.1°C at night, and 73% humidity. August is the wettest month — 73 mm and 6 rainy days, with 78% humidity.

September: 31.8°C high, 25.6°C low, 21 mm rain, 75% humidity. November stands apart from the months beside it: 30.4°C / 20.8°C and 1 mm. December: 26.5°C high, 17.0°C low, 7 mm rain, 47% humidity.

When the score favours a visit

The three months with the highest comfort score are February, March, and December: February (21.8°C average, 3 mm, 55% humidity); March (25.2°C average, 3 mm, 62% humidity); December (21.8°C average, 7 mm, 47% humidity). They fall in calendar order. The score rewards averages near 22°C, lower rainfall, and humidity near 60%. It is a climate score, not a festival or price calendar.

If you prefer the hottest stretch, that is June. The coolest stretch is January.

Karachi and other cities in Pakistan

Hyderabad is about 150 km away: Karachi is 3.6°C cooler than Hyderabad in its hottest month and a similar annual rainfall (196 mm in Hyderabad). Hyderabad’s wettest month is August (63 mm) versus August here.

Quetta is about 592 km away: Karachi is 3.9°C warmer than Quetta in its hottest month and a similar annual rainfall (178 mm in Quetta). Quetta’s wettest month is February (33 mm) versus August here.

Multan is about 739 km away: Karachi is 7.3°C cooler than Multan in its hottest month and a similar annual rainfall (198 mm in Multan). Multan’s wettest month is March (34 mm) versus August here.