Kamaishi weather
At 10:00 AM local time it was clear and 13°C (55°F). Light rain for 3 of the next 24 hours (under 1 mm/h, 0.5 mm total) — cloudy, but fine to be out. Best months for weather: May–Jun, Aug–Sep. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Kamaishi, Iwate, Japan.
Current conditions
- Clouds
- 10%
- Chance of rain
- 0%
- Rain
- 0.0 mm/h
Hourly Forecast
Light rain for 3 of the next 24 hours (under 1 mm/h, 0.5 mm total) — cloudy, but fine to be out
Daily Forecast
Best Time to Visit
Peak season May–Jun, Aug–SepOff season Dec–Mar
About Kamaishi weather
Is it raining in Kamaishi right now?
No. It’s clear and 13° right now. Light rain for 3 of the next 24 hours (under 1 mm/h, 0.5 mm total) — cloudy, but fine to be out.
What’s the weather like in Kamaishi this week?
Over the next 7 days, expect highs of 13–20° and lows of 4–12°. Rain is likely on 3 of 7 days (Monday, Thursday, Friday). The driest day looks like Wednesday.
Has it been raining in Kamaishi lately?
In the past 7 days, Kamaishi had 1 rainy day and 15.0 mm of rain in total.
What should I pack for Kamaishi?
For the coming week, bring an umbrella or rain jacket and a warm layer for the evenings.
Kamaishi weather by month
When is the best time to visit Kamaishi?
Based on weather alone, the best time to visit Kamaishi is May–Jun, Aug–Sep, according to NASA's 2001–2025 climate averages. Dec–Mar tends to be the least pleasant. Average highs run from 1°C (34°F) in January to 25°C (77°F) in August.
What is the rainiest month in Kamaishi?
July is the wettest month, with about 179 mm (7.0 in) of rain on average. February is the driest, with about 44 mm (1.7 in).
What is the hottest month in Kamaishi?
August is the warmest, with average highs of 25°C (77°F) and lows of 19°C (66°F). January is the coolest, with highs of 1°C (34°F) and lows of -3°C (26°F).
Does Kamaishi have a rainy season?
Yes. Jul–Oct is the rainy season (150 mm or more a month), while Feb is usually dry (under 60 mm).
How warm is the sea in Kamaishi?
The sea is warmest in August at about 25°C (77°F) and coolest in February at about 11°C (51°F). It is comfortable for swimming (22°C or more) in Aug–Sep.
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