Climate averages 1991–2020
Subulussalam weather
in January.
A hot, very wet month: the joint 7th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a hot month in Subulussalam: daytime highs average 29.2°C and nights cool to about 20.9°C. By daytime temperature it is the joint 7th warmest of the 12 months.
Expect about 329 mm of rain on roughly 26 days, which makes January a very wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 59 min on an average January day.
The nearest other city in this atlas is Kabanjahe (83 km away). In January its highs average 24.0°C, 5.2°C cooler than Subulussalam, with 189 mm of rain.
Among the 200 cities listed in Indonesia, Subulussalam ranks joint 27th of 200 for the warmest January highs and 117th of 200 for the driest January (rainfall, lowest first). The mean January high of those 200 cities is 28.2°C; Subulussalam is 1.0°C warmer than that mean.
From January to February, average highs rise by 0.5°C to 29.8°C, and monthly rainfall falls from 329 mm to 294 mm.
The annual picture
January 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
Subulussalam climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 29.2°C20.9°C | 20.9°C | 329 | 26.3 | 12.012 h |
| February | 29.8°C20.9°C | 20.9°C | 294 | 24.1 | 12.012 h |
| March | 29.8°C21.4°C | 21.4°C | 339 | 28.1 | 12.112 h |
| April | 29.5°C21.8°C | 21.8°C | 368 | 27.3 | 12.212 h |
| May | 29.9°C22.1°C | 22.1°C | 264 | 21.4 | 12.212 h |
| June | 29.9°C21.8°C | 21.8°C | 150 | 16.7 | 12.312 h |
| July | 29.5°C21.4°C | 21.4°C | 160 | 17.7 | 12.312 h |
| August | 29.2°C21.4°C | 21.4°C | 238 | 20.7 | 12.212 h |
| September | 29.1°C21.4°C | 21.4°C | 295 | 22.4 | 12.112 h |
| October | 28.6°C21.3°C | 21.3°C | 419 | 25.9 | 12.112 h |
| November | 28.4°C21.2°C | 21.2°C | 510 | 28.2 | 12.012 h |
| December | 28.6°C21.1°C | 21.1°C | 395 | 27.5 | 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
January in nearby cities
- Kabanjahe in JanuaryIndonesia · 83 kmHigh 24.0°C · Low 17.3°C · 189 mm rain
- Binjai in JanuaryIndonesia · 124 kmHigh 28.3°C · Low 21.5°C · 237 mm rain
- Sunggal in JanuaryIndonesia · 130 kmHigh 28.5°C · Low 21.8°C · 237 mm rain
- Medan in JanuaryIndonesia · 134 kmHigh 28.7°C · Low 22.1°C · 203 mm rain
- Pematangsiantar in JanuaryIndonesia · 136 kmHigh 26.6°C · Low 20.2°C · 240 mm rain
- Sibolga in JanuaryIndonesia · 143 kmHigh 29.3°C · Low 22.9°C · 338 mm rain
- Belawan in JanuaryIndonesia · 152 kmHigh 28.8°C · Low 22.6°C · 213 mm rain
- Percut in JanuaryIndonesia · 153 kmHigh 28.5°C · Low 22.8°C · 213 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 Subulussalam) is explained once on the Subulussalam year overview and on the Sources, method and limits page.