Live Weather & Forecast
Weather in Iwatsuki
Saitama, Japan · Real-time conditions & 3-day outlook
22°C
Feels like 24°C
72°F / Feels 75°F
Partly cloudy
Iwatsuki, Saitama
🌞 Daytime
Updated: 2026-04-15 15:15
Humidity
50%
Wind
8.6 km/h WSW
Wind Gust
10.9 km/h
Pressure
1009 mb
Visibility
10 km
UV Index
0.6
(Low)
Precipitation
0 mm
Cloud Cover
75%
Dew Point
7.3°C
Wind Degree
242°
Air Quality Index
US EPA: Moderate
UK DEFRA: Moderate (4)
CO
376.9 μg/m³
NO₂
19.5 μg/m³
O₃
40 μg/m³
SO₂
8.1 μg/m³
PM 2.5
36.8 μg/m³
PM 10
41.1 μg/m³
Today's Hourly Forecast
24-hour breakdown for Iwatsuki, Saitama
12 AM
18°
Patchy rain nearby
1 AM
18°
Patchy rain nearby
2 AM
18°
Partly Cloudy
3 AM
17°
Partly Cloudy
4 AM
17°
Partly Cloudy
5 AM
17°
Cloudy
6 AM
17°
Patchy rain nearby
7 AM
17°
Partly Cloudy
8 AM
18°
Patchy rain nearby
9 AM
20°
Patchy rain nearby
10 AM
21°
Patchy rain nearby
11 AM
22°
Partly Cloudy
12 PM
23°
Partly Cloudy
1 PM
23°
Partly Cloudy
2 PM
22°
Partly Cloudy
3 PM
22°
Partly cloudy
4 PM
22°
Cloudy
5 PM
20°
Light drizzle
6 PM
18°
Light rain
7 PM
16°
Light rain
8 PM
16°
Moderate rain
9 PM
16°
Light rain
10 PM
16°
Light rain
11 PM
16°
Light drizzle
3-Day Forecast
Daily overview for Iwatsuki, Saitama
Today
Moderate rain
23°
/
16°
🌧️ 94% chance of rain
💧 Avg. humidity: 62%
💨 Max wind: 14.8 km/h
🌧️ Total precip: 12.39 mm
☀️ UV Index: 1.4
🌅 Sunrise: 05:09 AM
🌇 Sunset: 06:14 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Thu, Apr 16
Patchy rain nearby
24°
/
14°
🌧️ 93% chance of rain
💧 Avg. humidity: 52%
💨 Max wind: 25.9 km/h
🌧️ Total precip: 0.58 mm
☀️ UV Index: 1.4
🌅 Sunrise: 05:08 AM
🌇 Sunset: 06:15 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Partly Cloudy
21°
/
11°
🌧️ 0% chance of rain
💧 Avg. humidity: 39%
💨 Max wind: 19.1 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2
🌅 Sunrise: 05:06 AM
🌇 Sunset: 06:16 PM
🌙 New Moon
🌑 Moon: 0% lit
Best Time to Visit Iwatsuki
Plan your trip to Iwatsuki, 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 Iwatsuki?
Current conditions in Iwatsuki: Partly cloudy, temperature 22°C, humidity 50%.
What is the best time to visit Iwatsuki?
The best time to visit Iwatsuki is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Iwatsuki?
Iwatsuki is located at approximately 36° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Iwatsuki?
The wettest period in Iwatsuki is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Iwatsuki?
For visits to Iwatsuki during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What are the public holidays in Iwatsuki in 2026?
View the 2026 public holidays for Iwatsuki on our Holidays page.
What are the GPS coordinates used for the weather forecast in Iwatsuki?
The weather forecast for Iwatsuki uses coordinates 35.95, 139.6944.