Arai weather
At 12:45 PM local time it was mostly clear and 15°C (59°F). Light rain for 3 of the next 24 hours (under 1 mm/h, 0.9 mm total) — cloudy, but fine to be out. Best months for weather: Apr–Oct. Arai sits 179 m (587 ft) above sea level, which keeps it cooler than the coast. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Arai, Niigata, Japan.
Current conditions
- Clouds
- 45%
- Chance of rain
- 35%
- Rain
- 0.0 mm/h
Hourly Forecast
Light rain for 3 of the next 24 hours (under 1 mm/h, 0.9 mm total) — cloudy, but fine to be out
Daily Forecast
Best Time to Visit
Peak season Apr–OctOff season Dec–Mar
About Arai weather
Is it raining in Arai right now?
No. It’s mostly clear and 15° right now. Light rain for 3 of the next 24 hours (under 1 mm/h, 0.9 mm total) — cloudy, but fine to be out.
What’s the weather like in Arai this week?
Over the next 7 days, expect highs of 12–20° and lows of 5–13°. Rain is likely on 6 of 7 days (Sunday, Monday, Tuesday, Thursday, Friday, Saturday). The driest day looks like Wednesday.
Has it been raining in Arai lately?
In the past 7 days, Arai had 6 rainy days and 76.1 mm of rain in total.
What should I pack for Arai?
For the coming week, bring an umbrella or rain jacket and a warm layer for the evenings.
Arai weather by month
When is the best time to visit Arai?
Based on weather alone, the best time to visit Arai is Apr–Oct, according to NASA's 2001–2025 climate averages. Dec–Mar tends to be the least pleasant. Average highs run from 2°C (36°F) in January to 27°C (81°F) in August.
What is the rainiest month in Arai?
December is the wettest month, with about 215 mm (8.5 in) of rain on average. May is the driest, with about 92 mm (3.6 in).
What is the hottest month in Arai?
August is the warmest, with average highs of 27°C (81°F) and lows of 21°C (69°F). January is the coolest, with highs of 2°C (36°F) and lows of -3°C (27°F).
How warm is the sea in Arai?
The sea is warmest in August at about 29°C (84°F) and coolest in March at about 10°C (50°F). It is comfortable for swimming (22°C or more) in Jul–Oct.
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), sea temperature from Open-Meteo Marine, forecast and current conditions from Open-Meteo. Page updated . How we rate months