Lake Toya Weather & Climate: Best Time to Visit

In Lake Toya, temperatures differ significantly between summer and winter months. Typically, average maximum daytime temperatures range from a comfortable 25°C (77°F) in August to a very cold -1°C (30°F) in the coolest month, January.

Nights vary from 18°C (64°F) in August to around -8°C (18°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Lake Toya experiences significant rain/snowfall throughout the year, averaging 1207 mm (48 in) of precipitation annually. The climate in Lake Toya shows significant variation throughout the year. Expect heavy rainfall in August, the wettest month, with an average of 181 mm (7.1 in) of precipitation over 19 rainy days.

In contrast, the driest month February offers drier and sunnier days, with around 63 mm (2.5 in) of snowfall over 26 snowy days. For more details, please visit our Lake Toya Precipitation page.

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

The average number of days each month with precipitation

For those who appreciate different seasons, Lake Toya serves as an ideal destination. Expect longer, more sun-filled days in May with an average of 6.6 hours of sunshine daily, and embrace the darker days in December, offering only 2.9 hours of daily sunlight.

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 Lake Toya.

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