When to go · India
When to go to Port Blair
When to go
What the averages say
On these averages, Port Blair has a mean high between 18°C and 32°C and under 150 mm of rain in December to April.
- Wet months (150 mm of rain or more): May to November.
- Humid months (a high of 25°C or more with relative humidity of 70% or more): January to December.
- The warmest month is April (30°C) and the coolest January (28°C). The wettest is September (410 mm) and the driest February (12 mm); about 2,567 mm of rain falls in a year.
How these sentences are worded
Each sentence is written from the figures by fixed rules, and says no more than they do. Mild to warm: a mean daily high from 18°C up to 32°C. Hot: 32°C or more. Cool: 10°C up to 18°C. Cold: under 10°C. Dry: under 50 mm of rain in the month; wet: 150 mm or more. Humid: a high of 25°C or more with relative humidity of 70% or more. A month is described as good for going when it is mild to warm and not wet.
The model's grid cell here is mostly sea, so the daily high and low sit closer together than they do on land: afternoons ashore are usually warmer, and nights cooler.
The year at a glance
- Mild to warm and dry
- Mild to warm, humid or showery
- Hot
- Cool
- Wet
- Cold
- JanMild–warm, mixed
- FebMild–warm, mixed
- MarMild–warm, mixed
- AprMild–warm, mixed
- MayWet
- JunWet
- JulWet
- AugWet
- SeptWet
- OctWet
- NovWet
- DecMild–warm, mixed
Month by month
Every month in Port Blair
| Month | High | Low | Rain | Humidity | Cloud | Sunlight (kWh/m²/day) | High in Dubai | What it is like |
|---|---|---|---|---|---|---|---|---|
| January | 28°C | 26°C | 42 mm | 75% | 52% | 5.1 | 23°C | Mild to warm, humid or showery |
| February | 28°C | 27°C | 12 mm | 72% | 39% | 5.9 | 24°C | Mild to warm, humid or showery |
| March | 29°C | 27°C | 40 mm | 71% | 42% | 6.3 | 27°C | Mild to warm, humid or showery |
| April | 30°C | 29°C | 72 mm | 72% | 53% | 6.3 | 31°C | Mild to warm, humid or showery |
| May | 30°C | 29°C | 359 mm | 79% | 85% | 4.7 | 35°C | Wet |
| June | 29°C | 28°C | 384 mm | 83% | 92% | 4.3 | 37°C | Wet |
| July | 29°C | 28°C | 370 mm | 84% | 92% | 4.4 | 39°C | Wet |
| August | 28°C | 28°C | 344 mm | 84% | 91% | 4.5 | 39°C | Wet |
| September | 28°C | 28°C | 410 mm | 83% | 88% | 4.5 | 37°C | Wet |
| October | 28°C | 28°C | 231 mm | 81% | 76% | 5 | 34°C | Wet |
| November | 29°C | 28°C | 190 mm | 79% | 68% | 4.7 | 29°C | Wet |
| December | 28°C | 27°C | 113 mm | 77% | 62% | 4.6 | 25°C | Mild to warm, humid or showery |
The Dubai column is Dubai's mean daily high, for comparison.
Modelled averages for an area about 50 km across, not a weather station's record: NASA POWER climatology, 2001–2020. These data were obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program.
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