Bengaluru: Patchy rain, cooler temperatures forecast for Sunday

Bengaluru is set for a mild Sunday on August 31, 2025, with patchy rain and breezy winds throughout the day. The India Meteorological Department (IMD) has forecast temperatures between 19.6°C and 26.7°C, with an average temperature of 22.6°C. Winds are expected to reach up to 27 kmph, contributing to pleasant conditions despite high humidity.

The city is likely to receive 1.38 mm of rainfall, most of it during the late afternoon hours. With an 86% chance of precipitation, residents have been advised to carry umbrellas. Humidity levels will remain high at 79%, making the air feel slightly damp during the day, though conditions are expected to improve in the evening.

Air quality remains favourable

On Saturday, Bengaluru recorded an Air Quality Index (AQI) of 44, indicating clean air conditions. The main pollutants were PM2.5 at 12, PM10 at 44, and carbon monoxide levels at 368. These levels are within the satisfactory range and pose little or no health risk to the general population.

However, experts note that Sunday’s increased humidity could affect pollution levels, particularly in high-traffic areas. Light rain and moisture may trap pollutants closer to the ground, potentially impacting sensitive groups such as children, the elderly, and those with respiratory issues.

Best times for outdoor activities

Morning hours are expected to be the most comfortable for outdoor activities such as walking, jogging, or cycling. With cooler temperatures and breezy conditions, the early part of the day will be favourable. Afternoon hours may see interruptions due to patchy rain, requiring residents to keep rain protection handy.

Evenings are likely to be clearer, making them suitable for outdoor dining and leisure walks. Authorities have suggested that residents use masks when travelling through congested areas, where air quality may dip despite overall favourable readings.

Outlook for the week ahead

Bengaluru is set to experience a week of consistent rain showers, cooler nights, and relatively stable temperatures.

  • Monday, Sept 1: Similar conditions with temperatures between 19.2°C and 26.4°C; humidity at 75%.
  • Tuesday, Sept 2: Heavier rainfall expected at 2.55 mm; temperatures between 18.7°C and 26.5°C.
  • Wednesday, Sept 3: High humidity at 79% with precipitation of 1.56 mm.
  • Thursday, Sept 4: Wind speeds rising to 31.7 kmph, light rain, and maximum temperature of 25.9°C.
  • Friday, Sept 5: Drier day with minimal rainfall of 0.17 mm.
  • Saturday, Sept 6: Light rain with maximum temperature of 26.4°C, clearing up by evening.

Meteorologists say this week marks a shift from recent weather trends, featuring cooler nights and frequent but manageable showers.

Conclusion

With mild temperatures, patchy rain, and largely favourable air quality, Bengaluru residents can look forward to a comfortable Sunday, provided they carry rain gear and take precautions in traffic-heavy zones. The week ahead promises similar weather patterns, with consistent rain and occasional windy spells.