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Weather in Shinjuku for January 2026

Your guide to Shinjuku weather in January - trends and predictions

    Temperatures

  • Until now, January 2026 in Shinjuku has been nearly identical to the historical average, with a temperature of 9.5 °C (showing only a slight deviation of -0.5 °C).

  • The forecast for the upcoming days in Shinjuku predicts a temperature of 7.9 °C, which is slightly above the historical average.

  • In general, the average temperature in Shinjuku at the beginning of January is 9.9 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 7.7 °C by the end of January.

    • Rain 🌧️

  • With an average of 4 rainy days, Shinjuku experiences minimal rainfall in January.

    • More

  • Is January a good time to visit Shinjuku? check out the best time to travel to Shinjuku page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
27
Dry days
Average rainy days
4
Rainy days
Average snowy days
0
Snow days
Average temperatures
10°/6°
Temperatures
Average wind speed
30 km/h
Avg max wind
Average humidity
52 %
Avg humidity

Shinjuku Weather January

Move between months or click on a day
December
February
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Cloudy
10°
2
Partly cloudy
9°
3
Patchy rain possible
9°
4
Cloudy
9°
5
Overcast
12°
6
Moderate or heavy rain shower
10°
7
Overcast
10°
8
Overcast
10°
9
Sunny
9°
10
Sunny
11°
11
Partly cloudy
12°
12
Patchy rain possible
9°
13
Cloudy
12°
14
Partly cloudy
10°
15
Sunny
13°
16
Cloudy
12°
17
Partly cloudy
10°
18
Partly cloudy
8°
19
Moderate or heavy rain shower
9°
20
Patchy rain possible
12°
21
Cloudy
9°
22
Cloudy
8°
23
Overcast
10°
24
Patchy rain possible
11°
25
Overcast
8°
26
Sunny
9°
27
Overcast
10°
28
Patchy rain possible
8°
29
Patchy rain possible
7°
30
Patchy rain possible
6°
31
Sunny
6°

Temperatures trend during January in Shinjuku

See the weather trend as well as the moving average line

January weather in Shinjuku day by day

Click on a date for more information
December February
Date Weather Temperatures Rain Snow More
1 Jan. Cloudy
Cloudy
 10° /7° 0 mm 0 cm
2 Jan. Partly cloudy
Partly cloudy
 9° /5° 1.3 mm 0 cm
3 Jan. Patchy rain possible
Patchy rain possible
 9° /5° 0.9 mm 0 cm
4 Jan. Cloudy
Cloudy
 9° /5° 0.3 mm 0 cm
5 Jan. Overcast
Overcast
 12° /6° 0 mm 0 cm
6 Jan. Moderate or heavy rain shower
Moderate or heavy rain shower
 10° /6° 22.8 mm 0 cm
7 Jan. Overcast
Overcast
 10° /7° 0 mm 0 cm
8 Jan. Overcast
Overcast
 10° /6° 0 mm 0 cm
9 Jan. Sunny
Sunny
 9° /4° 0 mm 0 cm
10 Jan. Sunny
Sunny
 11° /4° 0 mm 0 cm
11 Jan. Partly cloudy
Partly cloudy
 12° /4° 0.1 mm 0 cm
12 Jan. Patchy rain possible
Patchy rain possible
 9° /5° 0.2 mm 0 cm
13 Jan. Cloudy
Cloudy
 12° /7° 0 mm 0 cm
14 Jan. Partly cloudy
Partly cloudy
 10° /7° 0 mm 0 cm
15 Jan. Sunny
Sunny
 13° /6° 0 mm 0 cm
16 Jan. Cloudy
Cloudy
 12° /8° 0 mm 0 cm
17 Jan. Partly cloudy
Partly cloudy
 10° /6° 0 mm 0 cm
18 Jan. Partly cloudy
Partly cloudy
 8° /4° 0 mm 0 cm
19 Jan. Moderate or heavy rain shower
Moderate or heavy rain shower
 9° /6° 5.6 mm 0 cm
20 Jan. Patchy rain possible
Patchy rain possible
 12° /6° 0.2 mm 0 cm
21 Jan. Cloudy
Cloudy
 9° /6° 0.5 mm 0 cm
22 Jan. Cloudy
Cloudy
 8° /5° 0.2 mm 0.1 cm
23 Jan. Overcast
Overcast
 10° /5° 0 mm 0 cm
24 Jan. Patchy rain possible
Patchy rain possible
 11° /6° 0.4 mm 0 cm
25 Jan. Overcast
Overcast
 8° /5° 0.4 mm 0 cm
26 Jan. Sunny
Sunny
 9° /4° 0.4 mm 0 cm
27 Jan. Overcast
Overcast
 10° /5° 0.9 mm 0 cm
28 Jan. Patchy rain possible
Patchy rain possible
 8° /5° 0.5 mm 0 cm
29 Jan. Patchy rain possible
Patchy rain possible
 7° /4° 0.7 mm 0 cm
30 Jan. Patchy rain possible
Patchy rain possible
 6° /4° 0.2 mm 0 cm
31 Jan. Sunny
Sunny
 6° /3° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Shinjuku in January 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 Shinjuku forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Shinjuku weather in January vs December vs February

Compare January weather in Shinjuku with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
DecemberJanuaryFebruary
WeatherCloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Temperatures13°/8°10°/6°10°/5°
Rainfall5 mm60 mm18 mm
Wind32 km/h30.4 km/h32.3 km/h
Humidity52%52%50%
Rainy days1 days4 days3 days
Dry days30 days27 days25 days

Planning a trip to Shinjuku? Discover the best time to visit

Shinjuku in January - FAQ

What are the expected maximum and minimum temperatures in Shinjuku during January?

During January, expect a variety of temperatures with highs around 10° and lows near 6°, suitable for diverse activities and preferences.

How much rainfall should be expected in Shinjuku during January?

Moderate rainfall is anticipated in Shinjuku during January, with a total of 60 mm spread over approximately 4 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in Shinjuku during January?

The average wind speed in Shinjuku during January is 30 km/h, suggesting breezy to windy conditions, depending on your activities.

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

Shinjuku snow forecast January 2026

Track daily snowfall levels and discover Shinjuku’s snowy potential this January ❄️

January rainfall patterns in Shinjuku

Explore the daily rainfall trends and prepare for Shinjukus January weather 💧
Typically, Shinjuku has 4 rainy days in January with a total of 60 mm of rainfall.

Quick links

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Location coordinates 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.

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