Riau (Batam)
December
Weather in Riau for December 2026
Your guide to Riau weather in December - trends and predictions
In general, the average temperature in Riau at the beginning of December is 29 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 28.6 °C by the end of December.
Riau experiences heavy rainfall in December, with over 20 rainy days and an average total precipitation 360.9 mm.
Is December a good time to visit Riau? check out the best time to travel to Riau page.
✨ Is December a good time to visit Riau? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
1
Dry days
30
Rainy days
0
Snow days
29°/25°
Temperatures
18 km/h
Avg max wind
80 %
Avg humidity
Riau Weather December
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Temperatures trend during December in Riau
See the weather trend as well as the moving average line
December weather in Riau day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Moderate rain | 29° /26° | 12 mm | 6 | |
| 2 Dec. |  Light rain | 29° /26° | 8.5 mm | 6 | |
| 3 Dec. | Moderate rain | 28° /25° | 22.3 mm | 6 | |
| 4 Dec. | Moderate rain | 29° /25° | 10.1 mm | 6 | |
| 5 Dec. | Light rain | 29° /25° | 9.6 mm | 6 | |
| 6 Dec. | Moderate rain | 30° /26° | 10.2 mm | 7 | |
| 7 Dec. |  Moderate or heavy rain shower | 29° /25° | 8.9 mm | 6 | |
| 8 Dec. | Moderate rain | 29° /25° | 11 mm | 7 | |
| 9 Dec. | Light rain | 30° /25° | 7.9 mm | 7 | |
| 10 Dec. | Light rain | 28° /25° | 8.1 mm | 6 | |
| 11 Dec. | Moderate rain | 29° /25° | 11.1 mm | 6 | |
| 12 Dec. | Moderate rain | 28° /25° | 20.9 mm | 6 | |
| 13 Dec. | Moderate rain | 29° /25° | 16.9 mm | 6 | |
| 14 Dec. | Light rain | 29° /25° | 7.6 mm | 6 | |
| 15 Dec. | Moderate rain | 28° /25° | 16.6 mm | 6 | |
| 16 Dec. | Light rain | 29° /25° | 9 mm | 6 | |
| 17 Dec. | Moderate rain | 29° /25° | 15.2 mm | 7 | |
| 18 Dec. | Moderate rain | 28° /25° | 15.2 mm | 6 | |
| 19 Dec. | Moderate rain | 28° /25° | 10.2 mm | 6 | |
| 20 Dec. | Light rain | 28° /25° | 7.7 mm | 6 | |
| 21 Dec. | Moderate rain | 29° /25° | 16.3 mm | 6 | |
| 22 Dec. | Moderate rain | 28° /25° | 15.3 mm | 6 | |
| 23 Dec. | Light rain | 29° /25° | 3.7 mm | 7 | |
| 24 Dec. | Moderate rain | 29° /25° | 10.7 mm | 6 | |
| 25 Dec. | Moderate rain | 29° /25° | 13.3 mm | 6 | |
| 26 Dec. | Moderate rain | 28° /25° | 16.2 mm | 5 | |
| 27 Dec. | Light rain | 28° /25° | 5.8 mm | 5 | |
| 28 Dec. | Moderate rain | 28° /25° | 16.3 mm | 5 | |
| 29 Dec. | Light rain | 29° /25° | 6.8 mm | 6 | |
| 30 Dec. | Light rain | 30° /25° | 9.2 mm | 6 | |
| 31 Dec. | Light rain | 28° /25° | 8.1 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Riau 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 Riau forecast closer to your planned date for the most up-to-date weather information.
Change Month
Riau weather in December vs November vs January
Compare December weather in Riau 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°/26° | 29°/25° | 28°/24° |
| Rainfall | 293 mm | 361 mm | 382 mm |
| Wind | 15.1 km/h | 18.1 km/h | 21.8 km/h |
| Humidity | 76% | 80% | 81% |
| Rainy days | 27 days | 30 days | 22 days |
| Dry days | 3 days | 1 days | 9 days |
Planning a trip to Riau? Discover the best time to visit
Riau in December - FAQ
What are the expected maximum and minimum temperatures in Riau during December?
During December, expect a variety of temperatures with highs around 29° and lows near 25°, suitable for diverse activities and preferences.
How much rainfall should be expected in Riau during December?
Significant rainfall exceeding 360.9 mm is expected in Riau during December, occurring over more than 30 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Riau during December?
The average wind speed in Riau during December is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Riau
Explore the daily rainfall trends and prepare for Riaus December weather 💧
Typically, Riau has 30 rainy days in December with a total of 360.9 mm of rainfall.
UV exposure in Riau during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
What to pack to Riau in December?
Warm & sunny · highs around 29 °C, frequent showers
As you prepare for your trip to Riau 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 Riau, during December, is comfortable and enjoyable, regardless of the weather conditions.
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🧥 Clothing
👟 Footwear
🎒 Accessories
🧴 Personal Items
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