Karachi Weather Forecast: Prepare for Thundery Showers and Haze on August 20-21

Karachi, Pakistan's bustling coastal hub, is bracing for a significant weather change on August 20 and 21, 2025. Residents and visitors should prepare for a mix of thundery showers, haze, and warm, humid conditions.

Wednesday, August 20: Rain and Thunderstorms

On Wednesday, Karachi can expect thundery showers and a gentle breeze. Temperatures will reach a high of 33°C (92°F) and a low of 26°C (79°F).

• The Weather Channel forecasts a 40% chance of rain, with isolated thunderstorms in the morning before transitioning to cloudy skies. Winds will shift, and hazy conditions may affect visibility.

• AccuWeather warns of a strong morning thunderstorm, followed by breezy, cloudy weather. They urge caution due to the possibility of urban flooding, a recurring issue during Pakistan's monsoon season.

Thursday, August 21: Improved Conditions

The weather is expected to improve slightly on Thursday, with lighter clouds and a refreshing breeze. Temperatures will remain warm, with a high of 33°C (91°F) and a low of 27°C (80°F).

• BBC Weather predicts light cloud cover and a gentle breeze throughout the day.

• The Weather Channel forecasts considerable clouds in the morning that will give way to partly cloudy skies later on. While hazy conditions will persist, no significant rainfall is expected, offering a break from Wednesday's showers.

Planning for the Weather

Karachi's August weather is typically hot and humid with frequent rain. The thundery showers on Wednesday could disrupt travel and outdoor plans, especially with recent flooding concerns in other cities like Lahore. Thursday’s lighter cloud cover provides a better window for outdoor activities, but haze may still be a concern for those with sensitivities.

Residents are advised to carry umbrellas, stay updated with real-time weather alerts, and consider wearing a mask during hazy periods to protect against poor air quality.