🇯🇵 Weather in Iwatsuki
Map Overlays:
Hourly Forecast for Iwatsuki
01:00
29°
7%
02:00
30°
8%
03:00
29°
8%
04:00
29°
8%
05:00
29°
7%
06:00
30°
6%
07:00
31°
4%
08:00
32°
3%
09:00
33°
2%
10:00
35°
2%
11:00
36°
2%
12:00
37°
2%
13:00
38°
2%
14:00
39°
2%
15:00
39°
7%
16:00
37°
36%
17:00
35°
8%
18:00
33°
36%
19:00
31°
17%
20:00
30°
13%
21:00
29°
36%
22:00
29°
23%
23:00
28°
9%
00:00
28°
9%
14-Day Forecast for Iwatsuki
2026-07-23
Sunny
39° /
28°
2026-07-24
Partly Cloudy
34° /
26°
2026-07-25
Patchy rain nearby
33° /
25°
2026-07-26
Light rain shower
31° /
23°
2026-07-27
Patchy rain nearby
30° /
22°
2026-07-28
Patchy rain nearby
30° /
23°
2026-07-29
Sunny
36° /
24°
Additional Forecasts for Iwatsuki
Air Quality
💨 US EPA Index 2 (Moderate)
CO (Carbon Monoxide) 322.0 μg/m³
O₃ (Ozone) 53.0 μg/m³
NO₂ (Nitrogen Dioxide) 27.4 μg/m³
SO₂ (Sulphur Dioxide) 9.2 μg/m³
PM2.5 (Fine particles) 32.0 μg/m³
PM10 (Coarse particles) 32.2 μg/m³
Historical Weather
Weather Forecasts for Other Cities in Japan
Weather in Iwatsuki — FAQ
Answers refreshed each request based on current conditions in Iwatsuki.
What is the weather like right now in Iwatsuki?
Right now in Iwatsuki, Japan the temperature is 29.0°C (feels like 32.8°C), with partly cloudy. Relative humidity is 89% and wind is 6.8 km/h.
What is today's high and low temperature in Iwatsuki?
Today's forecast high in Iwatsuki is 39.1°C and the overnight low is 28.3°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Iwatsuki today?
The chance of precipitation in Iwatsuki today is 57%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in Iwatsuki differ from nearby cities?
Even short distances can change temperatures noticeably. Iwatsuki's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.