Weather in Tateyama for December 2025
In general, the average temperature in Tateyama at the beginning of December is 15 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 12.4 °C by the end of December.
Tateyama experiences moderate rainfall in December, with an average of 8 rainy days and a total precipitation of 17 mm.
Is December a good time to visit Tateyama? check out the best time to travel to Tateyama page.
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Tateyama Weather December
Temperatures trend during December in Tateyama
December weather in Tateyama day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Sunny | 14° /11° | 0 mm | 4 | |
| 2 Dec. |  Overcast | 14° /12° | 0 mm | 3 | |
| 3 Dec. | Sunny | 18° /15° | 0 mm | 5 | |
| 4 Dec. | Overcast | 18° /14° | 0 mm | 4 | |
| 5 Dec. | Overcast | 14° /12° | 0 mm | 3 | |
| 6 Dec. | Sunny | 14° /11° | 0 mm | 4 | |
| 7 Dec. | Overcast | 13° /11° | 0 mm | 3 | |
| 8 Dec. |  Patchy rain possible | 13° /10° | 0.1 mm | 3 | |
| 9 Dec. |  Partly cloudy | 11° /8° | 0 mm | 4 | |
| 10 Dec. |  Cloudy | 12° /9° | 0.5 mm | 3 | |
| 11 Dec. | Overcast | 13° /10° | 0 mm | 3 | |
| 12 Dec. | Cloudy | 10° /6° | 0 mm | 3 | |
| 13 Dec. | Overcast | 13° /7° | 2.6 mm | 3 | |
| 14 Dec. | Cloudy | 13° /6° | 1.6 mm | 3 | |
| 15 Dec. | Sunny | 11° /7° | 0 mm | 4 | |
| 16 Dec. | Partly cloudy | 12° /10° | 0 mm | 4 | |
| 17 Dec. | Partly cloudy | 12° /9° | 0 mm | 4 | |
| 18 Dec. | Overcast | 12° /8° | 0 mm | 3 | |
| 19 Dec. |  Moderate or heavy rain shower | 9° /6° | 2.7 mm | 2 | |
| 20 Dec. | Overcast | 13° /6° | 0 mm | 3 | |
| 21 Dec. | Moderate or heavy rain shower | 15° /11° | 6.3 mm | 4 | |
| 22 Dec. | Cloudy | 13° /7° | 0 mm | 3 | |
| 23 Dec. | Cloudy | 9° /6° | 0 mm | 2 | |
| 24 Dec. | Sunny | 9° /6° | 0 mm | 3 | |
| 25 Dec. | Overcast | 13° /7° | 0 mm | 3 | |
| 26 Dec. | Partly cloudy | 15° /12° | 0.6 mm | 5 | |
| 27 Dec. | Moderate rain at times | 12° /8° | 2.2 mm | 3 | |
| 28 Dec. | Patchy rain possible | 11° /7° | 0.4 mm | 3 | |
| 29 Dec. | Sunny | 11° /6° | 0 mm | 4 | |
| 30 Dec. | Overcast | 11° /6° | 0 mm | 3 | |
| 31 Dec. | Overcast | 14° /9° | 0 mm | 3 | |
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Tateyama in December - FAQ
What to pack to Tateyama in December?
As you prepare for your trip to Tateyama 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 Tateyama, during December, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
December rainfall patterns in Tateyama
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