Climate averages 1991–2020
Banjarmasin weather
in May.
A hot, wet month: the 4th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Banjarmasin: daytime highs average 30.1°C and nights cool to about 24.2°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 149 mm of rain on roughly 23 days, which makes May a wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 58 min on an average May day.
The nearest other city in this atlas is Banjarbaru (30 km away). In May its highs average 30.2°C, about as warm as Banjarmasin, with 185 mm of rain.
Among the 200 cities listed in Indonesia, Banjarmasin ranks joint 41st of 200 for the warmest May highs and 93rd of 200 for the driest May (rainfall, lowest first). The mean May high of those 200 cities is 29.2°C; Banjarmasin is 0.9°C warmer than that mean.
From May to June, average highs fall by 0.4°C to 29.7°C, and monthly rainfall falls from 149 mm to 113 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
Banjarmasin climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.3°C23.7°C | 23.7°C | 291 | 28.7 | 12.312 h |
| February | 29.6°C23.8°C | 23.8°C | 248 | 25.1 | 12.212 h |
| March | 29.7°C23.9°C | 23.9°C | 277 | 28.2 | 12.112 h |
| April | 29.9°C24.1°C | 24.1°C | 236 | 27.3 | 12.012 h |
| May, selected | 30.1°C24.2°C | 24.2°C | 149 | 22.5 | 12.012 h |
| June | 29.7°C23.9°C | 23.9°C | 113 | 17.5 | 11.912 h |
| July | 29.7°C23.4°C | 23.4°C | 89 | 14.5 | 11.912 h |
| August | 30.8°C23.5°C | 23.5°C | 52 | 9.3 | 12.012 h |
| September | 31.6°C23.8°C | 23.8°C | 69 | 10.5 | 12.112 h |
| October | 31.4°C24.0°C | 24.0°C | 152 | 18.2 | 12.212 h |
| November | 30.0°C24.0°C | 24.0°C | 254 | 27.6 | 12.312 h |
| December | 29.2°C23.8°C | 23.8°C | 328 | 29.4 | 12.312 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
- Banjarbaru in MayIndonesia · 30 kmHigh 30.2°C · Low 23.6°C · 185 mm rain
- Martapura in MayIndonesia · 32 kmHigh 30.3°C · Low 23.8°C · 185 mm rain
- Palangkaraya in MayIndonesia · 145 kmHigh 30.2°C · Low 23.7°C · 189 mm rain
- Sampit in MayIndonesia · 202 kmHigh 30.3°C · Low 24.0°C · 213 mm rain
- Pangkalanbuun in MayIndonesia · 337 kmHigh 29.9°C · Low 24.1°C · 210 mm rain
- Balikpapan in MayIndonesia · 338 kmHigh 28.3°C · Low 24.6°C · 198 mm rain
- Nusantara in MayIndonesia · 351 kmHigh 29.5°C · Low 23.8°C · 270 mm rain
- Loa Janan in MayIndonesia · 412 kmHigh 30.1°C · Low 23.9°C · 256 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 Banjarmasin) is explained once on the Banjarmasin year overview and on the Sources, method and limits page.