Climate averages 1991–2020
Port Blair weather
in May.
A hot, very wet month: the 2nd warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Port Blair: daytime highs average 29.1°C and nights cool to about 26.8°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 271 mm of rain on roughly 25 days, which makes May a very wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 39 min on an average May day.
The nearest other city in this atlas is Pathein (607 km away). In May its highs average 32.6°C, 3.4°C warmer than Port Blair, with 220 mm of rain.
Among the 692 cities listed in India, Port Blair ranks 676th of 692 for the warmest May highs and 669th of 692 for the driest May (rainfall, lowest first). The mean May high of those 692 cities is 37.3°C; Port Blair is 8.2°C cooler than that mean.
From May to June, average highs fall by 0.7°C to 28.4°C, and monthly rainfall rises from 271 mm to 327 mm.
The annual picture
May 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, selected | 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 | 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
May in nearby cities
- Pathein in MayMyanmar · 607 kmHigh 32.6°C · Low 25.6°C · 220 mm rain
- Dawbon in MayMyanmar · 621 kmHigh 33.3°C · Low 25.7°C · 272 mm rain
- Myeik in MayMyanmar · 642 kmHigh 30.0°C · Low 24.9°C · 430 mm rain
- Dawei in MayMyanmar · 648 kmHigh 29.5°C · Low 24.5°C · 374 mm rain
- Kyauktan in MayMyanmar · 674 kmHigh 31.7°C · Low 26.0°C · 270 mm rain
- Set Ka Lay in MayMyanmar · 678 kmHigh 33.1°C · Low 25.8°C · 281 mm rain
- Hlaingthaya in MayMyanmar · 678 kmHigh 33.2°C · Low 25.8°C · 281 mm rain
- Yangon in MayMyanmar · 679 kmHigh 32.8°C · Low 25.7°C · 270 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.