Isehara Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Isehara.
Climate overview of Isehara
Isehara, Kanagawa, Japan, sees big temperature differences between seasons, with August peaking at 29°C (84°F) and January dropping to 10°C (50°F).
Rain/snowfall is high, totalling around 1970 mm (78 in) per year. September is the wettest month and December the driest. The most sunshine falls in August, with an average of 6.9 hours of daily sunshine.
Isehara Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Isehara — and find the best time to visit.
Monthly Temperature in Isehara
Visitors to Isehara can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 29°C (84°F) in August, the warmest time of the year, to a chilly 10°C (50°F) during cooler months like January.
At night, you can expect temperatures ranging from 24°C (75°F) in August to around 2°C (36°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Isehara
Isehara is known for its substantial rain/snowfall, with annual precipitation reaching 1970 mm (78 in). Significant seasonal changes in precipitation occur throughout the year. In the wettest month, September it receives heavy rainfall, averaging 244 mm (9.6 in) of precipitation, recorded across 19 rainy days. In contrast, the driest month December brings less rainfall, with 83 mm (3.3 in) over 8 rainy days. For more details, please visit our Isehara 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 Isehara
While the amount of sunshine in Isehara varies throughout the year, all seasons offer their own charm. Enjoy up to 6.9 hours of daily sun in August, and experience slightly darker atmosphere in September, with about 4.4 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Isehara by Month
The relative humidity is high throughout the year in Isehara.
The city experiences its highest humidity in June, reaching 78%. In January, the humidity drops to its lowest level at 54%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Isehara
The weather does bring rainfall during this period, between 123 mm (4.8 in) and 159 mm (6.3 in).
Plan accordingly for March, April, May, June, July, 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 Isehara
What is the best time to visit Isehara?
May and August typically offer the most optimal weather in Isehara. In contrast, January, February and March tend to have less optimal conditions.
What temperatures can I expect in Isehara?
Daytime highs range from 10°C (50°F) in January to 29°C (84°F) in August. Nighttime lows range from 2°C (36°F) to 24°C (75°F). Temperatures vary considerably through the year.
How much rain does Isehara get?
Annual rainfall is around 1970 mm (78 in). September is the wettest month with 244 mm (9.6 in), while December is the driest with 83 mm (3.3 in).
How sunny is Isehara?
Isehara receives around 1,973 hours of sunshine per year. August is the sunniest month with 208 hours, while September is the cloudiest with just 131 hours.
Isehara 3-Day Forecast
Isehara 3-Day Forecast
Isehara on the map
Isehara is highlighted — select any city to see its climate.
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