Niigata Weather in May
During May, Niigata experiences pleasant daytime temperatures of 21°C (70°F) and cooler nights around 13°C (55°F). Expect quite a bit of rainfall. Around 105 mm (4.1 in) is typical.
Rainfall in Niigata in May
Historically, May sees about 17 days of rain, with a monthly average of 105 mm (4.1 in). Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.
Temperature in Niigata in May
Niigata in May gets highs of 21°C (70°F) during the day and drops to 13°C (55°F) at night. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights cool down to 13°C (55°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Niigata in May
The city usually sees around 205 hours of sunlight, indicating many sunny days — a great month for sightseeing.If you're inclined towards comfortable temperatures and drier conditions, May is a good time to visit Niigata.
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 Niigata's climate page.
Niigata Temperature in May
Min Temperature
13°C (55°F)
Max Temperature
21°C (70°F)
Chance of Rain
55%
Precipitation
105 mm (4.1 in)
Rainy days
17 days
Humidity
69%
Sunshine
205 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Niigata typically stay consistent throughout May, with daily highs averaging around 21°C (70°F). Nights are cool, with lows typically ranging from 11°C (52°F) to 16°C (61°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Niigata in May
Browse day-by-day weather records for Niigata spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Niigata historical weather extremes in May
Based on 50 years of weather observations (1976-2026), these are the most extreme conditions recorded in Niigata.
- On May 26, 2019, temperatures climbed to 31°C (88°F), marking the warmest May day on record.
- On May 2, 2013, Niigata saw its coldest May day with temperatures maxing out at 10°C (50°F).
- The coldest night in May in Niigata was on May 2, 1981, with a minimum of 3°C (37°F).
Best Places in Japan in May
Find out more about the weather in Japan and which places have the best travel conditions in this month. See all of Japan in May →
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What to Wear in Niigata in May
Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Niigata in May
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 Niigata's climate page.
Temperature Rainfall Sunshine Humidity
See the full Niigata climate overview or explore weather in Japan.
