Numazu Weather & Climate: Best Time to Visit

The climate in Numazu is known for significant temperature differences throughout the year, making the weather dynamic. Average daytime temperatures reach a comfortable 29°C (84°F) in August. In January, the coolest month of the year, temperatures drop to a chilly 10°C (50°F).

At night, temperatures range from around 23°C (73°F) in August to 3°C (37°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Numazu has a notably wet climate with abundant precipitation, recording 2325 mm (92 in) of rain/snowfall per year. Numazu can be quite wet during June, receiving approximately 280 mm (11 in) of precipitation over 19 rainy days.

In contrast, during the driest month (December), you will experience much drier conditions, with 92 mm (3.6 in) of precipitation spread across 8 rainy days days. For more details, please visit our Numazu Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Numazu can be enjoyed more throughout the sunniest month of January under a blue sky, with approximately 6.8 hours of sunshine daily. In contrast, the city experiences much darker days in September, with only 4.0 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is high throughout the year in Numazu.

The city experiences its highest humidity in September, reaching 82%. In January, the humidity drops to its lowest level at 62%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year