Niigata weather in April
Temperature, sea and sunshine in April: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in April
Fair
Best time to visit: May – July, September – October
What is the weather like in Niigata in April?
In April, Niigata is cool: daytime highs average 15 °C, and nights cool down to about 6 °C. The sea averages 11.1 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Rain is frequent, with about 14 rainy days and 95 mm in total. All in all, April is a so-so month for a holiday in Niigata.
April compared
How the weather changes from March to May. Tap a month to open it.
More details for April
- Daylight
- 13 h 8 min05:10 – 18:18
- UV index
- 8 · very highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 18 km/haverage daily peakAll months
- Cloud cover
- 62 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+9Asia/Tokyo
How the score comes together
- Temperatureweight 50 %65 %
- Sunshineweight 20 %48 %
- Few rainy daysweight 30 %31 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in April
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
Niigata in April: quick answers
Is Niigata hot in April?
No. In April, Niigata is cool: daytime highs average 15 °C and nights drop to about 6 °C.
Can you swim in Niigata in April?
Only if you don't mind cold water: in April the sea averages just 11.1 °C. Comfortable swimming is possible from July to October.
Does it rain much in Niigata in April?
Rain is frequent, with about 14 rainy days and 95 mm in total.
Niigata month by month
The whole year in NiigataAll destinations: JapanWhere to go in AprilSea temperature in April
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences