North Sumatra (Medan)
December
Weather in North Sumatra for December 2026
Your guide to North Sumatra weather in December - trends and predictions
In general, the average temperature in North Sumatra at the beginning of December is 28.9 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 28.8 °C by the end of December.
North Sumatra experiences heavy rainfall in December, with over 20 rainy days and an average total precipitation 270.7 mm.
Is December a good time to visit North Sumatra? check out the best time to travel to North Sumatra page.
✨ Is December a good time to visit North Sumatra? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
3
Dry days
28
Rainy days
0
Snow days
29°/22°
Temperatures
8 km/h
Avg max wind
87 %
Avg humidity
North Sumatra Weather December
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Temperatures trend during December in North Sumatra
See the weather trend as well as the moving average line
December weather in North Sumatra day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Moderate rain | 29° /22° | 20.5 mm | 6 | |
| 2 Dec. | Moderate rain | 26° /22° | 21.5 mm | 6 | |
| 3 Dec. | Moderate rain | 28° /22° | 23.2 mm | 6 | |
| 4 Dec. |  Light rain | 29° /22° | 7.7 mm | 6 | |
| 5 Dec. | Light rain | 30° /22° | 3.4 mm | 7 | |
| 6 Dec. | Light rain | 30° /22° | 6.4 mm | 7 | |
| 7 Dec. | Light rain | 30° /23° | 6.2 mm | 7 | |
| 8 Dec. | Light rain | 29° /22° | 6 mm | 6 | |
| 9 Dec. | Light rain | 30° /22° | 8.8 mm | 7 | |
| 10 Dec. | Light rain | 27° /22° | 9.5 mm | 6 | |
| 11 Dec. | Light rain | 29° /22° | 4 mm | 6 | |
| 12 Dec. | Light rain | 30° /23° | 8.4 mm | 7 | |
| 13 Dec. | Moderate rain | 29° /22° | 11.7 mm | 7 | |
| 14 Dec. | Light rain | 30° /22° | 4.1 mm | 6 | |
| 15 Dec. | Light rain | 28° /22° | 7.4 mm | 6 | |
| 16 Dec. | Light rain | 28° /22° | 6.4 mm | 6 | |
| 17 Dec. | Light rain | 27° /22° | 9.2 mm | 6 | |
| 18 Dec. | Light rain | 27° /22° | 7.6 mm | 6 | |
| 19 Dec. | Light rain | 29° /22° | 6.3 mm | 6 | |
| 20 Dec. | Light rain | 30° /22° | 8 mm | 7 | |
| 21 Dec. | Light rain | 29° /23° | 5.6 mm | 6 | |
| 22 Dec. | Light rain | 28° /23° | 6.7 mm | 6 | |
| 23 Dec. | Light rain | 29° /22° | 8.6 mm | 7 | |
| 24 Dec. | Moderate rain | 29° /22° | 11 mm | 6 | |
| 25 Dec. | Moderate rain | 29° /22° | 10 mm | 6 | |
| 26 Dec. | Light rain | 29° /22° | 5.8 mm | 6 | |
| 27 Dec. | Light rain | 29° /22° | 4.8 mm | 6 | |
| 28 Dec. | Light rain | 28° /23° | 9 mm | 6 | |
| 29 Dec. | Light rain | 29° /22° | 5.5 mm | 7 | |
| 30 Dec. | Moderate rain | 29° /22° | 10.3 mm | 6 | |
| 31 Dec. | Light rain | 29° /23° | 7.1 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for North Sumatra in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the North Sumatra forecast closer to your planned date for the most up-to-date weather information.
Change Month
North Sumatra weather in December vs November vs January
Compare December weather in North Sumatra with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
| November | December | January | |
|---|---|---|---|
| Weather |  Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 29°/22° | 29°/22° | 29°/22° |
| Rainfall | 262 mm | 271 mm | 215 mm |
| Wind | 8.5 km/h | 8.5 km/h | 8.3 km/h |
| Humidity | 87% | 87% | 86% |
| Rainy days | 28 days | 28 days | 27 days |
| Dry days | 2 days | 3 days | 4 days |
Planning a trip to North Sumatra? Discover the best time to visit
North Sumatra in December - FAQ
What are the expected maximum and minimum temperatures in North Sumatra during December?
During December, expect a variety of temperatures with highs around 29° and lows near 22°, suitable for diverse activities and preferences.
How much rainfall should be expected in North Sumatra during December?
Significant rainfall exceeding 270.7 mm is expected in North Sumatra during December, occurring over more than 28 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in North Sumatra during December?
The average wind speed in North Sumatra during December is 8 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in North Sumatra
Explore the daily rainfall trends and prepare for North Sumatras December weather 💧
Typically, North Sumatra has 28 rainy days in December with a total of 270.7 mm of rainfall.
UV exposure in North Sumatra during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
What to pack to North Sumatra in December?
Warm & sunny · highs around 29 °C, frequent showers
As you prepare for your trip to North Sumatra in December, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in North Sumatra, during December, is comfortable and enjoyable, regardless of the weather conditions.
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