Isumi Weather
12°
Light rain
Isumi, Chiba, Japan
Feels like 9° · Local time 10:00
Hour by hour
Rain around now, easing by 5 PM.
Now
12°
💧100%
11 AM
12°
💧99%
12 PM
12°
💧98%
1 PM
12°
💧97%
2 PM
12°
💧95%
3 PM
12°
💧86%
4 PM
13°
💧64%
5 PM
13°
💧36%
6 PM
13°
💧14%
7 PM
13°
💧6%
8 PM
13°
💧5%
9 PM
12°
💧4%
10 PM
11°
💧2%
11 PM
10°
💧1%
12 AM
10°
💧0%
1 AM
10°
💧0%
2 AM
9°
💧0%
3 AM
9°
💧0%
4 AM
9°
💧0%
5 AM
9°
💧0%
6 AM
9°
💧0%
7 AM
10°
💧0%
8 AM
11°
💧0%
9 AM
11°
💧0%
Rain radar
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Isumi 16-day weather forecast
Today
Rain · 💧100%
10°13°
Wednesday, Nov 11
Clear sky · 💧0%
9°13°
Thursday, Nov 12
Clear sky · 💧2%
10°19°
Friday, Nov 13
Fog · 💧10%
11°21°
Saturday, Nov 14
Light showers · 💧51%
12°20°
Sunday, Nov 15
Drizzle · 💧61%
14°20°
Monday, Nov 16
Light drizzle · 💧58%
13°20°
Tuesday, Nov 17
Drizzle · 💧81%
13°17°
Wednesday, Nov 18
Light showers · 💧83%
15°23°
Thursday, Nov 19
Mainly clear · 💧19%
11°20°
Friday, Nov 20
Clear sky · 💧8%
10°13°
Saturday, Nov 21
Clear sky · 💧12%
7°15°
Sunday, Nov 22
Light drizzle · 💧12%
5°14°
Monday, Nov 23
Fog · 💧15%
5°14°
Tuesday, Nov 24
Drizzle · 💧22%
8°16°
Wednesday, Nov 25
Drizzle · 💧26%
13°15°
Today's details
- Feels like
- 9°
- Humidity
- 89%
- Dew point
- 10°
- Wind
- 19 km/h N
- Gusts
- 49 km/h
- Pressure
- 1020 hPa · rising
- UV index now
- 0 · max 1
- Visibility
- 2 km
- Sunrise / sunset
- 06:08 / 16:36
- Moon
- New Moon · 0% lit
Hour-by-hour detail — next 48 hours
| Time | Temp | Rain | Amount | Humidity | Wind | |
|---|---|---|---|---|---|---|
| Now | 12° | 100% | 1.5 mm | 89% | 19 km/h | |
| 11 AM | 12° | 99% | 0.7 mm | 86% | 19 km/h | |
| 12 PM | 12° | 98% | 1.0 mm | 86% | 17 km/h | |
| 1 PM | 12° | 97% | 1.2 mm | 85% | 17 km/h | |
| 2 PM | 12° | 95% | 0.2 mm | 80% | 19 km/h | |
| 3 PM | 12° | 86% | 0.0 mm | 72% | 17 km/h | |
| 4 PM | 13° | 64% | 0.0 mm | 68% | 17 km/h | |
| 5 PM | 13° | 36% | 0.0 mm | 65% | 17 km/h | |
| 6 PM | 13° | 14% | 0.0 mm | 64% | 16 km/h | |
| 7 PM | 13° | 6% | 0.0 mm | 63% | 16 km/h | |
| 8 PM | 13° | 5% | 0.0 mm | 64% | 16 km/h | |
| 9 PM | 12° | 4% | 0.0 mm | 61% | 16 km/h | |
| 10 PM | 11° | 2% | 0.0 mm | 55% | 15 km/h | |
| 11 PM | 10° | 1% | 0.0 mm | 59% | 15 km/h | |
| 12 AM 11-11 | 10° | 0% | 0.0 mm | 63% | 15 km/h | |
| 1 AM 11-11 | 10° | 0% | 0.0 mm | 64% | 15 km/h | |
| 2 AM 11-11 | 9° | 0% | 0.0 mm | 67% | 15 km/h | |
| 3 AM 11-11 | 9° | 0% | 0.0 mm | 70% | 15 km/h | |
| 4 AM 11-11 | 9° | 0% | 0.0 mm | 72% | 15 km/h | |
| 5 AM 11-11 | 9° | 0% | 0.0 mm | 73% | 14 km/h | |
| 6 AM 11-11 | 9° | 0% | 0.0 mm | 73% | 14 km/h | |
| 7 AM 11-11 | 10° | 0% | 0.0 mm | 71% | 15 km/h | |
| 8 AM 11-11 | 11° | 0% | 0.0 mm | 66% | 17 km/h | |
| 9 AM 11-11 | 11° | 0% | 0.0 mm | 58% | 18 km/h | |
| 10 AM 11-11 | 12° | 0% | 0.0 mm | 51% | 18 km/h | |
| 11 AM 11-11 | 12° | 0% | 0.0 mm | 47% | 18 km/h | |
| 12 PM 11-11 | 13° | 0% | 0.0 mm | 47% | 17 km/h | |
| 1 PM 11-11 | 13° | 0% | 0.0 mm | 48% | 16 km/h | |
| 2 PM 11-11 | 13° | 0% | 0.0 mm | 50% | 15 km/h | |
| 3 PM 11-11 | 13° | 0% | 0.0 mm | 51% | 13 km/h | |
| 4 PM 11-11 | 13° | 0% | 0.0 mm | 54% | 11 km/h | |
| 5 PM 11-11 | 12° | 0% | 0.0 mm | 61% | 10 km/h | |
| 6 PM 11-11 | 12° | 0% | 0.0 mm | 60% | 10 km/h | |
| 7 PM 11-11 | 12° | 0% | 0.0 mm | 60% | 8 km/h | |
| 8 PM 11-11 | 11° | 0% | 0.0 mm | 62% | 7 km/h | |
| 9 PM 11-11 | 11° | 0% | 0.0 mm | 66% | 8 km/h | |
| 10 PM 11-11 | 10° | 0% | 0.0 mm | 69% | 8 km/h | |
| 11 PM 11-11 | 10° | 0% | 0.0 mm | 66% | 9 km/h | |
| 12 AM 11-12 | 10° | 0% | 0.0 mm | 66% | 9 km/h | |
| 1 AM 11-12 | 10° | 0% | 0.0 mm | 66% | 8 km/h | |
| 2 AM 11-12 | 10° | 0% | 0.0 mm | 67% | 7 km/h | |
| 3 AM 11-12 | 10° | 0% | 0.0 mm | 67% | 6 km/h | |
| 4 AM 11-12 | 10° | 0% | 0.0 mm | 68% | 6 km/h | |
| 5 AM 11-12 | 10° | 0% | 0.0 mm | 68% | 6 km/h | |
| 6 AM 11-12 | 10° | 0% | 0.0 mm | 70% | 7 km/h | |
| 7 AM 11-12 | 11° | 0% | 0.0 mm | 69% | 6 km/h | |
| 8 AM 11-12 | 13° | 0% | 0.0 mm | 62% | 1 km/h | |
| 9 AM 11-12 | 15° | 0% | 0.0 mm | 57% | 2 km/h |
Air quality in Isumi
35
US AQI — Good
PM2.5 2.4 µg/m³ · PM10 3.6 µg/m³ · O₃ 80 µg/m³
Isumi weather by month (2014–2023 averages)
| Month | Avg high | Avg low | Rainy days | Precipitation |
|---|---|---|---|---|
| January | 10° | 4° | 8 days | 94 mm |
| February | 11° | 4° | 10 days | 97 mm |
| March | 14° | 8° | 14 days | 164 mm |
| April | 18° | 11° | 12 days | 148 mm |
| May | 22° | 16° | 11 days | 139 mm |
| June | 24° | 19° | 15 days | 220 mm |
| July | 28° | 23° | 14 days | 191 mm |
| August | 29° | 25° | 14 days | 142 mm |
| September | 26° | 22° | 17 days | 241 mm |
| October | 22° | 17° | 15 days | 280 mm |
| November | 18° | 12° | 12 days | 146 mm |
| December | 13° | 7° | 9 days | 95 mm |
Ocean & waves
- Wave height
- 2.3 m
- Wave period
- 8 s
- Wave direction
- E
Frequently asked questions
What is the weather in Isumi today?
Light rain, currently 12° (feels like 9°), with a high of 13° and a low of 10°. Rain around now, easing by 5 PM.
What is the air quality in Isumi?
The air quality in Isumi is good (US AQI 35). PM2.5 is 2.4 µg/m³ and PM10 is 3.6 µg/m³.
What is the best month to visit Isumi?
August is typically the warmest month in Isumi (average high 29°), while January is the driest month (about 94 mm of precipitation on average).
Does it rain a lot in Isumi?
October is usually the wettest month in Isumi, averaging 280 mm of precipitation over about 15 rainy days.