Live Weather & Forecast
Weather in Isawa
Yamanashi, Japan · Real-time conditions & 3-day outlook
37°C
Feels like 36°C
98°F / Feels 97°F
Sunny
Isawa, Yamanashi
🌞 Daytime
Updated: 2026-04-15 11:45
Humidity
23%
Wind
18.4 km/h W
Wind Gust
21.1 km/h
Pressure
1007 mb
Visibility
10 km
UV Index
9
(Very High)
Precipitation
0 mm
Cloud Cover
1%
Dew Point
12.2°C
Wind Degree
273°
Air Quality Index
US EPA: Unhealthy
UK DEFRA: Very High (10)
CO
368.9 μg/m³
NO₂
2.1 μg/m³
O₃
113 μg/m³
SO₂
1.9 μg/m³
PM 2.5
81.9 μg/m³
PM 10
376.2 μg/m³
Today's Hourly Forecast
24-hour breakdown for Isawa, Yamanashi
12 AM
32°
Clear
1 AM
32°
Clear
2 AM
32°
Clear
3 AM
31°
Clear
4 AM
30°
Clear
5 AM
29°
Clear
6 AM
28°
Clear
7 AM
28°
Sunny
8 AM
31°
Sunny
9 AM
33°
Sunny
10 AM
35°
Sunny
11 AM
37°
Sunny
12 PM
39°
Sunny
1 PM
40°
Sunny
2 PM
41°
Sunny
3 PM
41°
Sunny
4 PM
41°
Sunny
5 PM
41°
Sunny
6 PM
39°
Sunny
7 PM
36°
Clear
8 PM
35°
Clear
9 PM
34°
Clear
10 PM
33°
Clear
11 PM
32°
Clear
3-Day Forecast
Daily overview for Isawa, Yamanashi
Today
Sunny
41°
/
28°
🌧️ 0% chance of rain
💧 Avg. humidity: 21%
💨 Max wind: 22.7 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2.3
🌅 Sunrise: 06:08 AM
🌇 Sunset: 06:31 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Thu, Apr 16
Sunny
40°
/
28°
🌧️ 0% chance of rain
💧 Avg. humidity: 23%
💨 Max wind: 29.9 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2.3
🌅 Sunrise: 06:07 AM
🌇 Sunset: 06:31 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Sunny
40°
/
27°
🌧️ 0% chance of rain
💧 Avg. humidity: 29%
💨 Max wind: 16.9 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.7
🌅 Sunrise: 06:07 AM
🌇 Sunset: 06:31 PM
🌙 New Moon
🌑 Moon: 0% lit
Best Time to Visit Isawa
Plan your trip to Isawa, Japan around the most favorable weather conditions.
Peak Season
November – April
Dry season — low humidity, clear skies, comfortable temperatures.
Shoulder Season
May, October
Fewer crowds, moderate prices, mild weather.
Off Season
June – September
Wet/monsoon season; heavier rainfall possible.
Frequently Asked Questions
What is the current weather in Isawa?
Current conditions in Isawa: Sunny, temperature 37°C, humidity 23%.
What is the best time to visit Isawa?
The best time to visit Isawa is typically November – April. Dry season — low humidity, clear skies, comfortable temperatures.
What is the climate like in Isawa?
Isawa is located at approximately 11.6° latitude. It has a tropical or subtropical climate with wet and dry seasons.
Does it rain a lot in Isawa?
The wettest period in Isawa is typically during June – September. Wet/monsoon season; heavier rainfall possible.
What should I pack for a trip to Isawa?
For visits to Isawa during November – April: light clothing and sun protection. For June – September: layers and a waterproof jacket are recommended.
What are the public holidays in Isawa in 2026?
View the 2026 public holidays for Isawa on our Holidays page.
What are the GPS coordinates used for the weather forecast in Isawa?
The weather forecast for Isawa uses coordinates 11.5693, 10.2412.