Climate averages 1991–2020
Tanjungbalai weather
in January.
A hot, very wet month: the joint 10th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a hot month in Tanjungbalai: daytime highs average 28.7°C and nights cool to about 23.8°C. By daytime temperature it is the joint 10th warmest of the 12 months.
Expect about 215 mm of rain on roughly 26 days, which makes January a very wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 58 min on an average January day.
The nearest other city in this atlas is Kisaran (21 km away). In January its highs average 28.8°C, about as warm as Tanjungbalai, with 208 mm of rain.
Among the 200 cities listed in Indonesia, Tanjungbalai ranks joint 81st of 200 for the warmest January highs and 23rd of 200 for the driest January (rainfall, lowest first). The mean January high of those 200 cities is 28.2°C; Tanjungbalai is 0.5°C warmer than that mean.
From January to February, average highs rise by 0.6°C to 29.3°C, and monthly rainfall falls from 215 mm to 159 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
Tanjungbalai climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 28.7°C23.8°C | 23.8°C | 215 | 26.1 | 12.012 h |
| February | 29.3°C24.1°C | 24.1°C | 159 | 22.2 | 12.012 h |
| March | 29.7°C24.5°C | 24.5°C | 192 | 25.5 | 12.112 h |
| April | 29.9°C24.8°C | 24.8°C | 233 | 28.3 | 12.212 h |
| May | 30.1°C25.0°C | 25.0°C | 235 | 27.4 | 12.312 h |
| June | 30.1°C25.0°C | 25.0°C | 171 | 22.5 | 12.312 h |
| July | 29.8°C24.7°C | 24.7°C | 177 | 22.8 | 12.312 h |
| August | 29.7°C24.5°C | 24.5°C | 216 | 25.7 | 12.212 h |
| September | 29.5°C24.2°C | 24.2°C | 282 | 28.2 | 12.112 h |
| October | 29.1°C24.1°C | 24.1°C | 333 | 29.6 | 12.112 h |
| November | 28.7°C24.0°C | 24.0°C | 367 | 29.5 | 12.012 h |
| December | 28.4°C23.9°C | 23.9°C | 333 | 28.4 | 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
- Kisaran in JanuaryIndonesia · 21 kmHigh 28.8°C · Low 22.8°C · 208 mm rain
- Pematangsiantar in JanuaryIndonesia · 81 kmHigh 26.6°C · Low 20.2°C · 240 mm rain
- Tebingtinggi in JanuaryIndonesia · 81 kmHigh 28.5°C · Low 22.9°C · 170 mm rain
- Rantauprapat in JanuaryIndonesia · 96 kmHigh 28.8°C · Low 22.3°C · 231 mm rain
- Perbaungan in JanuaryIndonesia · 115 kmHigh 28.4°C · Low 23.4°C · 202 mm rain
- Percut in JanuaryIndonesia · 127 kmHigh 28.5°C · Low 22.8°C · 213 mm rain
- Medan in JanuaryIndonesia · 143 kmHigh 28.7°C · Low 22.1°C · 203 mm rain
- Kabanjahe in JanuaryIndonesia · 146 kmHigh 24.0°C · Low 17.3°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 Tanjungbalai) is explained once on the Tanjungbalai year overview and on the Sources, method and limits page.