Climate Insights for Ishikawa

The climate in Ishikawa is warm and mild. The average annual temperature is 23°C and approximately 1958mm of precipitation falls per year. Ishikawa receives a notable amount of rainfall throughout the year, including during its driest month. Ishikawa is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, March, when temperatures can drop to 17°C.

Ishikawa sees moderate temperature variation throughout the year, ranging from 17°C to 29°C. The warmest month is August, when average highs reach 29°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 17°C and an average of 18°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows. The sharpest temperature change occurs between November and December, with a 3°C shift in average temperatures.

Ishikawa is a fairly wet location, receiving approximately 1958mm of precipitation annually, which averages out to around 163mm per month. The wettest month is June, averaging 271mm of rainfall. May and August also tend to see above-average precipitation. The driest month is February, with just 94mm. That's 176mm less than June, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.

Ishikawa is very windy, with an average annual wind speed of 32km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 37km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in May, with average winds dropping to 29km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 8km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 35km/h in winter, 30km/h in spring, 30km/h in summer, 32km/h in autumn.

It is currently spring in Ishikawa, which began on March 20, 2026. Ishikawa is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 29°C, while the coldest stretch bottoms out in January near 17°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Ishikawa is during February, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 94mm per month. By contrast, August can be uncomfortably hot with highs reaching 29°C, while January is the coldest period with lows dropping to 17°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Ishikawa based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.