Shirahama Weather & Climate: Best Time to Visit

Visitors to Shirahama can expect significant temperature changes throughout the year. Average daytime temperatures reach a comfortable 30°C (86°F) in August. In January, the coolest month of the year, temperatures drop to a chilly 11°C (52°F).

At night, temperatures range from around 25°C (77°F) in August to 6°C (43°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Shirahama is known for its substantial rainfall, with annual precipitation reaching 2280 mm (90 in). Shirahama can be quite wet during June, receiving approximately 340 mm (13 in) of precipitation over 19 rainy days.

In contrast, during the driest month (December), you will experience much drier conditions, with 104 mm (4.1 in) of precipitation spread across 12 rainy days days. For more details, please visit our Shirahama Precipitation page.

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

The average number of days each month with precipitation

Shirahama can be enjoyed more throughout the sunniest month of August under a blue sky, with approximately 7.6 hours of sunshine daily. In contrast, the city experiences much darker days in February, with only 4.5 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 Shirahama.

The city experiences its highest humidity in July, reaching 76%. In March, 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