Weather in Shinjuku for January 2026
In general, the average temperature in Shinjuku at the beginning of January is 10.1 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 10 °C by the end of January.
Shinjuku experiences moderate rainfall in January, with an average of 9 rainy days and a total precipitation of 60 mm.
Is January a good time to visit Shinjuku? check out the best time to travel to Shinjuku page.
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Shinjuku Weather January
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  10° | 2  10° | 3  9° | 4 8° | |||
| 5  10° | 6  13° | 7 11° | 8 9° | 9  10° | 10 8° | 11 9° |
| 12 9° | 13 11° | 14 11° | 15 13° | 16 9° | 17 8° | 18 8° |
| 19 9° | 20 13° | 21 11° | 22 11° | 23 14° | 24 12° | 25 9° |
| 26 11° | 27 11° | 28 11° | 29 9° | 30 10° | 31 9° |
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Temperatures trend during January in Shinjuku
January weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Jan. | Cloudy | 10° /7° | 0 mm | 3 | |
| 2 Jan. | Partly cloudy | 10° /7° | 0 mm | 4 | |
| 3 Jan. | Patchy rain possible | 9° /6° | 1.7 mm | 2 | |
| 4 Jan. | Cloudy | 8° /5° | 0.7 mm | 2 | |
| 5 Jan. | Overcast | 10° /5° | 0 mm | 3 | |
| 6 Jan. | Moderate or heavy rain shower | 13° /8° | 45.5 mm | 3 | |
| 7 Jan. | Overcast | 11° /8° | 0 mm | 3 | |
| 8 Jan. | Overcast | 9° /6° | 0 mm | 2 | |
| 9 Jan. | Sunny | 10° /6° | 0 mm | 4 | |
| 10 Jan. | Sunny | 8° /3° | 0 mm | 3 | |
| 11 Jan. | Partly cloudy | 9° /5° | 0 mm | 3 | |
| 12 Jan. | Patchy rain possible | 9° /6° | 0.5 mm | 2 | |
| 13 Jan. | Cloudy | 11° /6° | 0 mm | 3 | |
| 14 Jan. | Partly cloudy | 11° /6° | 0 mm | 4 | |
| 15 Jan. | Sunny | 13° /7° | 0 mm | 4 | |
| 16 Jan. | Cloudy | 9° /5° | 0 mm | 2 | |
| 17 Jan. | Partly cloudy | 8° /5° | 0 mm | 3 | |
| 18 Jan. | Partly cloudy | 8° /4° | 0 mm | 3 | |
| 19 Jan. | Moderate or heavy rain shower | 9° /6° | 8.5 mm | 2 | |
| 20 Jan. | Patchy rain possible | 13° /8° | 0.5 mm | 3 | |
| 21 Jan. | Cloudy | 11° /9° | 0 mm | 3 | |
| 22 Jan. | Cloudy | 11° /8° | 0 mm | 3 | |
| 23 Jan. | Overcast | 14° /8° | 0 mm | 3 | |
| 24 Jan. | Patchy rain possible | 12° /8° | 0.9 mm | 3 | |
| 25 Jan. | Overcast | 9° /6° | 0.4 mm | 2 | |
| 26 Jan. | Sunny | 11° /6° | 0 mm | 4 | |
| 27 Jan. | Overcast | 11° /6° | 0 mm | 3 | |
| 28 Jan. | Cloudy | 11° /7° | 1.3 mm | 3 | |
| 29 Jan. | Sunny | 9° /7° | 0 mm | 3 | |
| 30 Jan. | Sunny | 10° /5° | 0 mm | 4 | |
| 31 Jan. | Overcast | 9° /5° | 0 mm | 2 | |
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Shinjuku in January - FAQ
What to pack to Shinjuku in January?
As you prepare for your trip to Shinjuku in January, 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 Shinjuku, during January, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- 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
January rainfall patterns in Shinjuku
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Where is Shinjuku?Get accurate weather forecasts for Shinjuku, located at latitude 35.295 and longitude 139.571. Stay updated with localized weather information tailored for Shinjuku.