Climate averages 1991–2020
Pematangsiantar weather
in June.
A hot, very wet month: the warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a hot month in Pematangsiantar: daytime highs average 28.3°C and nights cool to about 21.1°C. By daytime temperature it is the warmest month of the year.
Expect about 231 mm of rain on roughly 27 days, which makes June a very wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 17 min on an average June day.
The nearest other city in this atlas is Tebingtinggi (42 km away). In June its highs average 30.1°C, 1.8°C warmer than Pematangsiantar, with 137 mm of rain.
Among the 200 cities listed in Indonesia, Pematangsiantar ranks joint 151st of 200 for the warmest June highs and joint 190th of 200 for the driest June (rainfall, lowest first). The mean June high of those 200 cities is 29.0°C; Pematangsiantar is 0.7°C cooler than that mean.
From June to July, average highs fall by 0.2°C to 28.1°C, and monthly rainfall rises from 231 mm to 236 mm.
The annual picture
June 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
Pematangsiantar climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.6°C20.2°C | 20.2°C | 240 | 27.9 | 12.012 h |
| February | 27.1°C20.2°C | 20.2°C | 190 | 24.3 | 12.012 h |
| March | 27.8°C20.7°C | 20.7°C | 217 | 26.4 | 12.112 h |
| April | 27.9°C21.0°C | 21.0°C | 249 | 28.6 | 12.212 h |
| May | 28.2°C21.3°C | 21.3°C | 265 | 29.2 | 12.312 h |
| June, selected | 28.3°C21.1°C | 21.1°C | 231 | 27.1 | 12.312 h |
| July | 28.1°C20.8°C | 20.8°C | 236 | 26.7 | 12.312 h |
| August | 27.9°C20.7°C | 20.7°C | 274 | 28.7 | 12.212 h |
| September | 27.5°C20.6°C | 20.6°C | 361 | 29.4 | 12.112 h |
| October | 27.1°C20.6°C | 20.6°C | 375 | 30.2 | 12.112 h |
| November | 26.6°C20.6°C | 20.6°C | 351 | 29.4 | 12.012 h |
| December | 26.3°C20.5°C | 20.5°C | 315 | 29.6 | 12.012 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
June in nearby cities
- Tebingtinggi in JuneIndonesia · 42 kmHigh 30.1°C · Low 24.0°C · 137 mm rain
- Kisaran in JuneIndonesia · 61 kmHigh 30.4°C · Low 23.9°C · 164 mm rain
- Kabanjahe in JuneIndonesia · 66 kmHigh 25.6°C · Low 17.6°C · 153 mm rain
- Perbaungan in JuneIndonesia · 69 kmHigh 30.0°C · Low 24.5°C · 123 mm rain
- Percut in JuneIndonesia · 77 kmHigh 30.0°C · Low 23.8°C · 201 mm rain
- Tanjungbalai in JuneIndonesia · 81 kmHigh 30.1°C · Low 25.0°C · 171 mm rain
- Medan in JuneIndonesia · 82 kmHigh 30.2°C · Low 22.9°C · 209 mm rain
- Sunggal in JuneIndonesia · 85 kmHigh 30.4°C · Low 22.6°C · 189 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 Pematangsiantar) is explained once on the Pematangsiantar year overview and on the Sources, method and limits page.