Izu Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Izu.
Climate overview of Izu
Izu, Shizuoka, Japan, sees big temperature differences between seasons, with August peaking at 30°C (86°F) and January dropping to 10°C (50°F).
The city has a wet climate, receiving around 2217 mm (87 in) of rainfall per year. Despite the high annual total, it has a distinct rainy season from March to July. June is the wettest month. The most sunshine falls in January, with an average of 6.8 hours of daily sunshine.
Izu Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Izu — and find the best time to visit.
Monthly Temperature in Izu
Visitors to Izu can expect significant temperature changes throughout the year. On average, daytime temperatures range from a comfortable 30°C (86°F) in August to a chilly 10°C (50°F) in January.
Nighttime temperatures range from 24°C (75°F) in August to 4°C (39°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Izu
Izu is known for its substantial rainfall, with annual precipitation reaching 2217 mm (87 in). The seasons in Izu bring significant changes in precipitation. The wettest month, June, receives heavy rainfall, with an average of 275 mm (11 in) of precipitation. This rainfall is distributed across 19 rainy days.
In contrast, the driest month, December, experiences much less rainfall, totaling 87 mm (3.4 in) over 9 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Izu Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Izu
In Izu, summer days are longer and more sunny, with daily sunshine hours peaking at 6.8 hours in January. As the darker season arrives, the brightness of the sun becomes less. September sees a soft sun for only 4.0 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Izu by Month
The relative humidity is high throughout the year in Izu.
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
Best Time to Visit Izu
The weather brings rainfall of 140 mm (5.5 in) during this period.
Plan accordingly for March, April, May, June, July, August, September and October, when conditions bring the heaviest precipitation. Need help choosing your next travel destination? We offer a specialized tool that matches you with locations based on your weather preferences. Explore destinations that suit your climate preferences.
Frequently asked questions about the climate in Izu
What is the best time to visit Izu?
April, May, July, August, September, October, November and December typically offer the most optimal weather in Izu. In contrast, January, February, March and June tend to have less optimal conditions. Izu has a distinct rainy season from March to July.
What temperatures can I expect in Izu?
Daytime highs range from 10°C (50°F) in January to 30°C (86°F) in August. Nighttime lows range from 4°C (39°F) to 24°C (75°F). Temperatures vary considerably through the year.
How much rain does Izu get?
Annual rainfall is around 2217 mm (87 in). June is the wettest month with 275 mm (11 in), while December is the driest with 87 mm (3.4 in).
How sunny is Izu?
Izu receives around 1,967 hours of sunshine per year. January is the sunniest month with 204 hours, while September is the cloudiest with just 120 hours.
Izu 3-Day Forecast
Izu 3-Day Forecast
Izu on the map
Izu is highlighted — select any city to see its climate.
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