Climate averages 1991–2020
Batam weather
in May.
A hot, very wet month: one of the warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Batam: daytime highs average 28.5°C and nights cool to about 26.2°C. By daytime temperature it is one of the warmest months of the year.
Expect about 210 mm of rain on roughly 26 days, which makes May a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 10 min on an average May day.
The nearest other city in this atlas is Ulu Bedok (23 km away). In May its highs average 29.0°C, 0.5°C warmer than Batam, with 210 mm of rain.
Among the 200 cities listed in Indonesia, Batam ranks joint 151st of 200 for the warmest May highs and joint 151st of 200 for the driest May (rainfall, lowest first). The mean May high of those 200 cities is 29.2°C; Batam is 0.6°C cooler than that mean.
From May to June, average highs stay level at 28.5°C, and monthly rainfall falls from 210 mm to 193 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
Batam climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.2°C25.1°C | 25.1°C | 199 | 19.1 | 12.112 h |
| February | 27.7°C25.4°C | 25.4°C | 98 | 13.0 | 12.112 h |
| March | 28.2°C25.6°C | 25.6°C | 145 | 19.8 | 12.112 h |
| April | 28.5°C25.9°C | 25.9°C | 182 | 25.2 | 12.112 h |
| May, selected | 28.5°C26.2°C | 26.2°C | 210 | 26.4 | 12.212 h |
| June | 28.5°C26.4°C | 26.4°C | 193 | 22.8 | 12.212 h |
| July | 28.1°C26.2°C | 26.2°C | 187 | 22.9 | 12.212 h |
| August | 28.0°C26.1°C | 26.1°C | 164 | 22.3 | 12.212 h |
| September | 28.1°C26.0°C | 26.0°C | 148 | 19.9 | 12.112 h |
| October | 28.0°C25.6°C | 25.6°C | 190 | 23.8 | 12.112 h |
| November | 27.6°C25.3°C | 25.3°C | 290 | 27.8 | 12.112 h |
| December | 27.3°C25.2°C | 25.2°C | 298 | 24.8 | 12.112 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
- Ulu Bedok in MaySingapore · 23 kmHigh 29.0°C · Low 25.7°C · 210 mm rain
- Singapore in MaySingapore · 25 kmHigh 28.8°C · Low 26.0°C · 224 mm rain
- Pasir Gudang in MayMalaysia · 37 kmHigh 29.3°C · Low 25.1°C · 220 mm rain
- Jurong Town in MaySingapore · 39 kmHigh 29.0°C · Low 25.5°C · 224 mm rain
- Woodlands in MaySingapore · 41 kmHigh 29.0°C · Low 25.5°C · 217 mm rain
- Johor Bahru in MayMalaysia · 46 kmHigh 29.4°C · Low 25.0°C · 217 mm rain
- Iskandar Puteri in MayMalaysia · 52 kmHigh 29.0°C · Low 25.6°C · 192 mm rain
- Tanjung Pinang in MayIndonesia · 55 kmHigh 28.8°C · Low 26.2°C · 201 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 Batam) is explained once on the Batam year overview and on the Sources, method and limits page.