Cities / Japan / Chiba

25°

🌤️ Isumi weather

Mostly clear. No rain expected in the next few hours.

Feels like 27° Wind 17 km/h E Humidity 81% UV 0 Air Good ☀ 04:57 - 18:28

Right now it is 25° in Isumi with mostly clear skies and today's high is 27° with an overnight low of 24°. The sun rises at 04:57 and sets at 18:28, giving 13h 31m of daylight. Over the coming week highs range from 27° to 28° - a steady stretch with little day-to-day change.

Isumi is in Chiba, Japan, sitting 1 m above sea level, with a population of about 36,000. Local time is Asia/Tokyo (UTC+9), and every time on this page is shown in it.

Next 24 hours - temperature

23° 25° 27° 27° 24° 04:00 · 24.6° · 0 mm 05:00 · 24.6° · 0 mm 06:00 · 24.9° · 0 mm 07:00 · 25.6° · 0 mm 08:00 · 26° · 0 mm 09:00 · 26.4° · 0 mm 10:00 · 26.8° · 0 mm 11:00 · 26.9° · 0 mm 12:00 · 27° · 0 mm 13:00 · 27° · 0 mm 14:00 · 26.9° · 0 mm 15:00 · 26.8° · 0 mm 16:00 · 26.3° · 0 mm 17:00 · 26° · 0 mm 18:00 · 25.2° · 0 mm 19:00 · 24.9° · 0 mm 20:00 · 24.9° · 0 mm 21:00 · 24.7° · 0 mm 22:00 · 24.6° · 0 mm 23:00 · 24.4° · 0 mm 00:00 · 24.3° · 0 mm 01:00 · 24.1° · 0 mm 02:00 · 24° · 0 mm 03:00 · 23.8° · 0.1 mm

Precipitation

04:00 · 0 mm 04:00 05:00 · 0 mm 06:00 · 0 mm 07:00 · 0 mm 07:00 08:00 · 0 mm 09:00 · 0 mm 10:00 · 0 mm 10:00 11:00 · 0 mm 12:00 · 0 mm 13:00 · 0 mm 13:00 14:00 · 0 mm 15:00 · 0 mm 16:00 · 0 mm 16:00 17:00 · 0 mm 18:00 · 0 mm 19:00 · 0 mm 19:00 20:00 · 0 mm 21:00 · 0 mm 22:00 · 0 mm 22:00 23:00 · 0 mm 00:00 · 0 mm 01:00 · 0 mm 01:00 02:00 · 0 mm 03:00 · 0.1 mm

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
04:00 🌤️ 24.6° 25.6° - Mostly clear
05:00 🌤️ 24.6° 25.6° - Mostly clear
06:00 🌤️ 24.9° 26.1° - Mostly clear
07:00 ☁️ 25.6° 27.1° - Overcast
08:00 ☁️ 26° 27.2° - Overcast
09:00 ☁️ 26.4° 27.4° - Overcast
10:00 ☁️ 26.8° 27.9° - Overcast
11:00 ☁️ 26.9° 28.2° - Overcast
12:00 ☁️ 27° 28.2° - Overcast
13:00 ☀️ 27° 27.6° - Clear sky
14:00 ☀️ 26.9° 27.7° - Clear sky
15:00 ☀️ 26.8° 27.9° - Clear sky

Next 16 days

Today☁️ 27°24° Sun 16🌦️ 27°24°2.9mm Mon 17🌦️ 27°25°0.9mm Tue 18☁️ 28°25°0.3mm Wed 19☁️ 28°25° Thu 20🌦️ 28°26°2.2mm Fri 21🌦️ 28°26°7.6mm Sat 22🌦️ 28°26°1.6mm Sun 23🌤️ 28°26° Mon 24🌧️ 28°25°4.6mm Tue 25🌦️ 26°24°0.7mm Wed 26⛅ 27°24°0.4mm Thu 27🌦️ 28°25°4.7mm Fri 28🌧️ 28°25°16.2mm Sat 29☁️ 27°25°0.1mm Sun 30🌤️ 0°0°
☁️ TodayAugust 15th Avg 26° Low 24° at 23:00 High 27° at 12:00 Wind ~20 km/h
Clear Cloudy Clear Cloudy
00:00 25°
02:00 25°
04:00 25°
06:00 25°
08:00 26°
10:00 27°
12:00 27°
14:00 27°
16:00 26°
18:00 25°
20:00 25°
22:00 25°
🌦️ SundayAugust 16th Avg 25° Low 24° at 03:00 High 27° at 13:00 2.9 mm rain Wind ~19 km/h
Rain Rain Rain
00:00 24°
02:00 24°
04:00 24° 0.1mm
06:00 25° 0.3mm
08:00 25° 0.4mm
10:00 26° 0.2mm
12:00 27° 0.1mm
14:00 27°
16:00 26° 0.1mm
18:00 25° 0.1mm
20:00 25°
22:00 25° 0.2mm
🌦️ MondayAugust 17th Avg 26° Low 25° at 00:00 High 27° at 12:00 0.9 mm rain Feels 30° Wind ~14 km/h
Cloudy Rain Cloudy
00:00 25° 0.2mm
02:00 25°
04:00 25°
06:00 25°
08:00 26°
10:00 27°
12:00 27° 0.1mm
14:00 26° 0.2mm
16:00 27°
18:00 26°
20:00 26°
22:00 26°
☁️ TuesdayAugust 18th Avg 26° Low 25° at 05:00 High 28° at 13:00 0.3 mm rain Feels 30° Wind ~17 km/h
Cloudy Cloudy Clear
00:00 25°
02:00 25°
04:00 25°
06:00 25°
08:00 27°
10:00 27° 0.1mm
12:00 28°
14:00 28°
16:00 27°
18:00 26°
20:00 26°
22:00 26°
☁️ WednesdayAugust 19th Avg 27° Low 25° at 05:00 High 28° at 11:00 Feels 31° Wind ~17 km/h
Partly Cloudy Cloudy
00:00 26°
02:00 25°
04:00 25°
06:00 25°
08:00 27°
10:00 28°
12:00 28°
14:00 28°
16:00 28°
18:00 27°
20:00 26°
22:00 26°
🌦️ ThursdayAugust 20th Avg 27° Low 26° at 02:00 High 28° at 12:00 2.2 mm rain Feels 31° Wind ~16 km/h
Clear Rain Partly Cloudy Rain
00:00 26°
02:00 26°
04:00 26°
06:00 26°
08:00 27° 0.2mm
10:00 28° 0.2mm
12:00 28° 0.2mm
14:00 28° 0.1mm
16:00 27°
18:00 27°
20:00 26° 0.1mm
22:00 26° 0.2mm
🌦️ FridayAugust 21st Avg 27° Low 26° at 02:00 High 28° at 13:00 7.6 mm rain Feels 30° Wind ~20 km/h
Rain Cloudy Rain
00:00 26° 0.2mm
02:00 26° 0.3mm
04:00 26° 0.9mm
06:00 26° 0.9mm
08:00 26° 0.7mm
10:00 27° 0.1mm
12:00 28° 0.1mm
14:00 28°
16:00 27° 0.1mm
18:00 26° 0.1mm
20:00 26° 0.1mm
22:00 26° 0.4mm
🌦️ SaturdayAugust 22nd Avg 27° Low 26° at 01:00 High 28° at 10:00 1.6 mm rain Wind ~21 km/h
Rain Clear Partly Cloudy Cloudy
00:00 26° 0.4mm
02:00 26° 0.4mm
04:00 26°
06:00 26°
08:00 27°
10:00 28°
12:00 28°
14:00 28°
16:00 27°
18:00 26°
20:00 26°
22:00 26°
🌤️ SundayAugust 23rd Avg 27° Low 26° at 05:00 High 28° at 12:00 Feels 30° Wind ~21 km/h
Partly Cloudy Clear Partly Cloudy Clear Cloudy
00:00 26°
02:00 26°
04:00 26°
06:00 26°
08:00 27°
10:00 28°
12:00 28°
14:00 28°
16:00 27°
18:00 26°
20:00 26°
22:00 26°
🌧️ MondayAugust 24th Avg 27° Low 25° at 23:00 High 28° at 14:00 4.6 mm rain Feels 30° Wind ~29 km/h
Cloudy Rain Clear Rain
00:00 26°
02:00 26°
04:00 26°
06:00 26°
08:00 27° 0.1mm
10:00 28° 0.1mm
12:00 28° 0.1mm
14:00 28° 0.1mm
16:00 28°
18:00 27°
20:00 26° 1.1mm
22:00 25° 0.2mm
🌦️ TuesdayAugust 25th Avg 25° Low 24° at 23:00 High 26° at 12:00 0.7 mm rain Wind ~36 km/h
Cloudy Rain Cloudy Clear Partly Cloudy Cloudy
00:00 24° 0.2mm
02:00 24°
04:00 24° 0.1mm
06:00 24° 0.1mm
08:00 25°
10:00 25°
12:00 26°
14:00 26°
16:00 25°
18:00 24°
20:00 24°
22:00 24° 0.1mm
⛅ WednesdayAugust 26th Avg 25° Low 24° at 02:00 High 27° at 12:00 0.4 mm rain Feels 29° Wind ~25 km/h
Cloudy Partly Cloudy Cloudy Rain
00:00 24° 0.1mm
02:00 24°
04:00 24°
06:00 24°
08:00 25°
10:00 26°
12:00 27°
14:00 27°
16:00 26°
18:00 26°
20:00 25° 0.1mm
22:00 25°
🌦️ ThursdayAugust 27th Avg 26° Low 25° at 02:00 High 28° at 12:00 4.7 mm rain Feels 30° Wind ~16 km/h
Cloudy Rain Clear Rain
00:00 25°
02:00 25°
04:00 25°
06:00 25°
08:00 26° 0.2mm
10:00 27° 0.2mm
12:00 28° 0.2mm
14:00 28°
16:00 27° 0.3mm
18:00 26° 0.3mm
20:00 26° 0.6mm
22:00 26° 0.4mm
🌧️ FridayAugust 28th Avg 26° Low 25° at 03:00 High 28° at 12:00 16.2 mm rain Feels 30° Wind ~19 km/h
Rain Rain
00:00 26° 0.4mm
02:00 25° 1mm
04:00 25° 1.9mm
06:00 25° 1.9mm
08:00 26° 1.8mm
10:00 27° 0.3mm
12:00 28° 0.3mm
14:00 28°
16:00 27° 0.1mm
18:00 27° 0.1mm
20:00 26° 0.1mm
22:00 26° 0.1mm
☁️ SaturdayAugust 29th Avg 26° Low 25° at 23:00 High 27° at 15:00 0.1 mm rain Feels 29° Wind ~23 km/h
Cloudy
00:00 26° 0.1mm
02:00 26°
04:00 26°
06:00 26°
08:00 26°
10:00 26°
12:00 26°
14:00 27°
16:00 27°
18:00 26°
20:00 26°
22:00 25°
🌤️ SundayAugust 30th Avg 25° Low 0° at 05:00 High 0° at 11:00 Feels 29° Wind ~18 km/h
Clear
00:00 25°
02:00 25°
04:00 24°
06:00 24°
08:00 26°
10:00 27°
12:00 27°
14:00 27°
16:00 26°
18:00 25°
20:00 24°
22:00 0°

Sun

☀️ Sunrise 04:57 · Sunset 18:28

13h 31m of daylight · Asia/Tokyo

Air quality

PM2.5 8.9 µg/m³ - Good

No reason to change your plans - open the windows.

Source: Copernicus CAMS, updated hourly.

Nearby

Yasashido · 0.8 km Ōi · 0.8 km Ōfunaya · 1.1 km Nagaoka · 1.7 km Zōshiki · 1.7 km Kaisuga · 1.7 km

Tools for Isumi

☔ Will it rain today? 🌅 Sunrise & sunset 🫁 Air quality 📼 Weather on this day

Common questions about Isumi weather

Will it rain in Isumi today?

No rain is in the forecast for Isumi today.

What is the temperature in Isumi right now?

It is 25° in Isumi right now, though it feels closer to 27°. Today runs between a low of 24° and a high of 27°.

What time is sunrise and sunset in Isumi?

The sun rises at 04:57 and sets at 18:28 local time in Isumi today, giving 13h 31m of daylight.

What is the air quality in Isumi?

PM2.5 in Isumi is currently 8.9 µg/m³, which counts as Good on the European air-quality index. No reason to change your plans - open the windows.

How accurate is the Isumi forecast, and how far ahead does it go?

This page shows 16 days ahead, refreshed every hour. It blends ECMWF, NOAA GFS and whichever national high-resolution model covers Isumi best. The first three days are the dependable part - day one is usually within a degree or two - and accuracy falls off steadily after day five, so read the far end as a trend rather than a plan. We publish our measured error against real station observations on the accuracy page.

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