Live Weather & Forecast
Weather in Jonan
Kumamoto, Japan · Real-time conditions & 3-day outlook
16°C
Feels like 16°C
61°F / Feels 61°F
Patchy rain nearby
Jonan, Kumamoto
🌙 Nighttime
Updated: 2026-04-17 21:30
Humidity
86%
Wind
17.6 km/h SE
Wind Gust
29.4 km/h
Pressure
1018 mb
Visibility
10 km
UV Index
0
(Low)
Precipitation
0.15 mm
Cloud Cover
76%
Dew Point
13.6°C
Wind Degree
143°
Air Quality Index
US EPA: Good
UK DEFRA: Low (2)
CO
174.9 μg/m³
NO₂
3.6 μg/m³
O₃
136 μg/m³
SO₂
2.8 μg/m³
PM 2.5
13.9 μg/m³
PM 10
23.8 μg/m³
Today's Hourly Forecast
24-hour breakdown for Jonan, Kumamoto
12 AM
14°
Partly Cloudy
1 AM
13°
Clear
2 AM
13°
Clear
3 AM
13°
Clear
4 AM
14°
Clear
5 AM
14°
Partly Cloudy
6 AM
14°
Patchy rain nearby
7 AM
15°
Patchy rain nearby
8 AM
16°
Patchy rain nearby
9 AM
17°
Patchy rain nearby
10 AM
17°
Light rain shower
11 AM
18°
Light rain shower
12 PM
19°
Patchy rain nearby
1 PM
19°
Patchy rain nearby
2 PM
19°
Patchy rain nearby
3 PM
19°
Patchy rain nearby
4 PM
18°
Patchy rain nearby
5 PM
17°
Patchy rain nearby
6 PM
17°
Patchy rain nearby
7 PM
16°
Patchy rain nearby
8 PM
16°
Patchy rain nearby
9 PM
16°
Patchy rain nearby
10 PM
16°
Light rain shower
11 PM
16°
Patchy rain nearby
3-Day Forecast
Daily overview for Jonan, Kumamoto
Today
Patchy rain nearby
19°
/
13°
🌧️ 99% chance of rain
💧 Avg. humidity: 78%
💨 Max wind: 29.2 km/h
🌧️ Total precip: 1.67 mm
☀️ UV Index: 1.7
🌅 Sunrise: 05:41 AM
🌇 Sunset: 06:44 PM
🌙 New Moon
🌑 Moon: 0% lit
Sat, Apr 18
Patchy rain nearby
19°
/
15°
🌧️ 87% chance of rain
💧 Avg. humidity: 82%
💨 Max wind: 19.8 km/h
🌧️ Total precip: 0.65 mm
☀️ UV Index: 1.4
🌅 Sunrise: 05:40 AM
🌇 Sunset: 06:45 PM
🌙 Waxing Crescent
🌑 Moon: 1% lit
Sun, Apr 19
Sunny
20°
/
14°
🌧️ 0% chance of rain
💧 Avg. humidity: 76%
💨 Max wind: 10.8 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2.1
🌅 Sunrise: 05:39 AM
🌇 Sunset: 06:46 PM
🌙 Waxing Crescent
🌑 Moon: 3% lit
Best Time to Visit Jonan
Plan your trip to Jonan, Japan around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Jonan?
Current conditions in Jonan: Patchy rain nearby, temperature 16°C, humidity 86%.
What is the best time to visit Jonan?
The best time to visit Jonan is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Jonan?
Jonan is located at approximately 33.1° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Jonan?
The wettest period in Jonan is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Jonan?
For visits to Jonan during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What are the public holidays in Jonan in 2026?
View the 2026 public holidays for Jonan on our Holidays page.
What are the GPS coordinates used for the weather forecast in Jonan?
The weather forecast for Jonan uses coordinates 33.1211, 131.8047.