Hamamatsu Weather in January
Thinking of visiting Hamamatsu in January? Expect low temperatures reaching 11°C (52°F) during the day, dropping to 3°C (37°F) at night, and note that quite a bit of rainfall is likely.
Rainfall in Hamamatsu in January
Historically, January sees about 11 days of rain, with a monthly average of 75 mm (3 in). Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Hamamatsu in January
In January, expect low temperatures in Hamamatsu, with highs of 11°C (52°F) and lows of 3°C (37°F) at night. January is typically considered a winter month. It stays cool throughout the day, so warm layers are a good idea from morning to evening. With overnight lows of 3°C (37°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets. This period often claims the chilliest monthly averages of the year.
Sunshine in Hamamatsu in January
Expect sunny days throughout the month, with an estimated 209 hours of sunshine. Despite the cool temperatures, the sunny skies make it a pleasant time to visit Hamamatsu.If you prefer dry days with pleasant temperatures, April typically offers the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Hamamatsu's climate page.
Hamamatsu Temperature in January
Min Temperature
3°C (37°F)
Max Temperature
11°C (52°F)
Chance of Rain
37%
Precipitation
75 mm (3 in)
Rainy days
11 days
Humidity
56%
Sunshine
209 hours
Percentage Sunshine
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Hamamatsu typically stay consistent throughout January, with daily highs averaging around 11°C (52°F). Nights are cold, with lows typically ranging from 1°C (34°F) to 3°C (37°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Hamamatsu in January
Browse day-by-day weather records for Hamamatsu spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Hamamatsu historical weather extremes in January
According to our 49 years of weather records for Hamamatsu, the following extremes were recorded between 1976 and 2025.
- On January 15, 1996, temperatures climbed to 18°C (64°F), marking the warmest January day on record.
- The lowest daytime temperature in January was 2°C (36°F), recorded on January 10, 1999.
- Hamamatsu registered its coldest January night on January 22, 1997, with temperatures dropping to -5°C (23°F).
Best Places in Japan in January
Find out more about the weather in Japan and which places have the best travel conditions in this month. See all of Japan in January →
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tolerable
unpleasant
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What to Wear in Hamamatsu in January
Pack for changing conditions in Hamamatsu in January. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Rain gear is recommended, you can expect wet weather on multiple days. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Hamamatsu in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Hamamatsu's climate page.
Temperature Rainfall Sunshine Humidity
See the full Hamamatsu climate overview or explore weather in Japan.
