Riau (Batam)
December
Weather in Riau for December 2025
Your guide to Riau weather in December - trends and predictions
In general, the average temperature in Riau at the beginning of December is 29.4 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 28.9 °C by the end of December.
Riau experiences heavy rainfall in December, with over 20 rainy days and an average total precipitation 423.3 mm.
Is December a good time to visit Riau? check out the best time to travel to Riau page.
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Temperatures
Rain 🌧️
More
0
Dry days
31
Rainy days
0
Snow days
29°/25°
Temperatures
17 km/h
Avg max wind
81 %
Avg humidity
Riau Weather December
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  30° | 2 29° | 3 28° | 4 29° | 5 30° | 6 30° | 7  30° |
| 8 30° | 9 30° | 10 29° | 11 29° | 12 28° | 13 29° | 14 30° |
| 15 30° | 16 30° | 17 30° | 18 28° | 19 28° | 20  28° | 21 29° |
| 22 27° | 23 28° | 24 28° | 25 29° | 26 28° | 27 28° | 28 29° |
| 29 30° | 30 30° | 31 28° |
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Temperatures trend during December in Riau
See the weather trend as well as the moving average line
December weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. | Light rain shower | 30° /25° | 15.6 mm | 7 | |
| 2 Dec. | Light rain shower | 29° /25° | 9.7 mm | 7 | |
| 3 Dec. | Light rain shower | 28° /24° | 30.1 mm | 6 | |
| 4 Dec. | Light rain shower | 29° /25° | 4.8 mm | 6 | |
| 5 Dec. | Light rain shower | 30° /25° | 7.7 mm | 7 | |
| 6 Dec. | Light rain shower | 30° /26° | 4.9 mm | 7 | |
| 7 Dec. | Moderate or heavy rain shower | 30° /25° | 8.4 mm | 7 | |
| 8 Dec. | Light rain shower | 30° /25° | 9.4 mm | 7 | |
| 9 Dec. | Moderate or heavy rain shower | 30° /25° | 11.6 mm | 7 | |
| 10 Dec. | Patchy rain possible | 29° /25° | 3 mm | 7 | |
| 11 Dec. | Light rain shower | 29° /25° | 12.4 mm | 6 | |
| 12 Dec. | Moderate or heavy rain shower | 28° /25° | 20.8 mm | 6 | |
| 13 Dec. | Light rain shower | 29° /25° | 10.9 mm | 6 | |
| 14 Dec. | Light rain shower | 30° /25° | 5.6 mm | 7 | |
| 15 Dec. | Light rain shower | 30° /25° | 9.7 mm | 7 | |
| 16 Dec. | Light rain shower | 30° /25° | 9.9 mm | 7 | |
| 17 Dec. | Patchy rain possible | 30° /26° | 11.3 mm | 7 | |
| 18 Dec. | Light rain shower | 28° /25° | 17.9 mm | 6 | |
| 19 Dec. | Light rain shower | 28° /24° | 12.4 mm | 6 | |
| 20 Dec. | Patchy light drizzle | 28° /24° | 7.5 mm | 6 | |
| 21 Dec. | Light rain shower | 29° /25° | 20 mm | 6 | |
| 22 Dec. | Moderate or heavy rain shower | 27° /24° | 21.5 mm | 6 | |
| 23 Dec. | Light rain shower | 28° /25° | 5.1 mm | 6 | |
| 24 Dec. | Moderate or heavy rain shower | 28° /24° | 15.3 mm | 6 | |
| 25 Dec. | Light rain shower | 29° /25° | 16.4 mm | 7 | |
| 26 Dec. | Moderate or heavy rain shower | 28° /25° | 13.2 mm | 6 | |
| 27 Dec. | Light rain shower | 28° /25° | 3.4 mm | 6 | |
| 28 Dec. | Light rain shower | 29° /25° | 5.9 mm | 7 | |
| 29 Dec. | Light rain shower | 30° /25° | 5.6 mm | 7 | |
| 30 Dec. | Light rain shower | 30° /25° | 6.1 mm | 7 | |
| 31 Dec. | Light rain shower | 28° /25° | 12.1 mm | 6 | |
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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.
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 423.3 mm is expected in Riau during December, occurring over more than 31 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 17 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Riau in December?
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.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Sandals/Flip-flops: Comfortable for warm climates
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
December rainfall patterns in Riau
Explore the daily rainfall trends and prepare for Riaus December weather 💧
UV exposure in Riau during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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