Pematangsiantar in December
6.1out of 10
Possible, with caveats
Warm and comfortable: highs around 28°C. Very wet: about 30 rainy days.
28°CAvg high
21°CAvg low
30Rainy days (315 mm)
11:50 hDaylight
06:25Sunrise · 18:15 Sunset
Why this score
- Warm and comfortable: highs around 28°C
- Very wet: about 30 rainy days
What to wear and pack
- T-shirts and light layers
- Shorts or a light skirt
- Rain jacket or compact umbrella
How reliable is the forecast?
Rainfall in December is fairly consistent from year to year (1.1 days). Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 28°C | 21°C | 239 mm | 28 | – | – | 6.1 |
| February | 28°C | 21°C | 190 mm | 24 | – | – | 6.1 |
| March | 29°C | 21°C | 217 mm | 27 | – | – | 6.1 |
| April | 29°C | 22°C | 249 mm | 29 | – | – | 6.0 |
| May | 30°C | 22°C | 264 mm | 29 | – | – | 5.9 |
| June | 30°C | 22°C | 231 mm | 27 | – | – | 5.9 |
| July | 29°C | 21°C | 236 mm | 27 | – | – | 6.0 |
| August | 29°C | 21°C | 275 mm | 29 | – | – | 6.1 |
| September | 29°C | 21°C | 361 mm | 29 | – | – | 6.1 |
| October | 28°C | 21°C | 375 mm | 30 | – | – | 6.1 |
| November | 28°C | 21°C | 351 mm | 29 | – | – | 6.1 |
| December | 28°C | 21°C | 315 mm | 30 | – | – | 6.1 |
Frequently asked questions
How hot is Pematangsiantar in December?
Daytime highs average 28°C and nights about 21°C.
When is the best time to visit Pematangsiantar?
The best months are January, February, March, August.