Climate averages 1991–2020
Port Blair weather
in August.
A warm, very wet month: the joint 6th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Port Blair: daytime highs average 27.9°C and nights cool to about 26.1°C. By daytime temperature it is the joint 6th warmest of the 12 months.
Expect about 296 mm of rain on roughly 28 days, which makes August a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 30 min on an average August day.
The nearest other city in this atlas is Pathein (607 km away). In August its highs average 28.6°C, 0.6°C warmer than Port Blair, with 489 mm of rain.
Among the 692 cities listed in India, Port Blair ranks joint 569th of 692 for the warmest August highs and 537th of 692 for the driest August (rainfall, lowest first). The mean August high of those 692 cities is 30.2°C; Port Blair is 2.3°C cooler than that mean.
From August to September, average highs fall by 0.3°C to 27.7°C, and monthly rainfall rises from 296 mm to 323 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Port Blair climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.3°C25.3°C | 25.3°C | 33 | 4.9 | 11.512 h |
| February | 27.9°C25.3°C | 25.3°C | 10 | 2.0 | 11.812 h |
| March | 28.8°C25.8°C | 25.8°C | 32 | 4.0 | 12.112 h |
| April | 29.8°C26.9°C | 26.9°C | 70 | 8.5 | 12.412 h |
| May | 29.1°C26.8°C | 26.8°C | 271 | 24.5 | 12.713 h |
| June | 28.4°C26.6°C | 26.6°C | 327 | 25.7 | 12.813 h |
| July | 28.1°C26.2°C | 26.2°C | 295 | 27.9 | 12.713 h |
| August, selected | 27.9°C26.1°C | 26.1°C | 296 | 27.5 | 12.513 h |
| September | 27.7°C25.8°C | 25.8°C | 323 | 27.3 | 12.212 h |
| October | 27.7°C25.7°C | 25.7°C | 265 | 24.9 | 11.912 h |
| November | 27.8°C26.0°C | 26.0°C | 180 | 16.4 | 11.612 h |
| December | 27.5°C25.8°C | 25.8°C | 93 | 8.7 | 11.511 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Pathein in AugustMyanmar · 607 kmHigh 28.6°C · Low 24.3°C · 489 mm rain
- Dawbon in AugustMyanmar · 621 kmHigh 29.2°C · Low 24.4°C · 472 mm rain
- Myeik in AugustMyanmar · 642 kmHigh 27.9°C · Low 23.9°C · 657 mm rain
- Dawei in AugustMyanmar · 648 kmHigh 26.7°C · Low 23.5°C · 734 mm rain
- Kyauktan in AugustMyanmar · 674 kmHigh 28.3°C · Low 24.7°C · 482 mm rain
- Set Ka Lay in AugustMyanmar · 678 kmHigh 29.0°C · Low 24.4°C · 501 mm rain
- Hlaingthaya in AugustMyanmar · 678 kmHigh 29.1°C · Low 24.4°C · 501 mm rain
- Yangon in AugustMyanmar · 679 kmHigh 28.8°C · Low 24.3°C · 482 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Port Blair) is explained once on the Port Blair year overview and on the Sources, method and limits page.