Today
Sun, Jun 21
Slight rain
28°23°
- Rain chance
- 100%
- Precip
- 3.1 mm
- Max wind
- 14 km/h
Matsubase air quality
Kumamoto, Japan · Tokyo time · 32.65°, 130.67°
Heavy rain Tuesday: around 53 mm expected.
Heavy rain Tuesday: around 53 mm expected.
Derived advisory — not an official warning
Heavy rain Wednesday: around 87 mm expected.
Heavy rain Wednesday: around 87 mm expected.
Derived advisory — not an official warning
Heavy rain Thursday: around 58 mm expected.
Heavy rain Thursday: around 58 mm expected.
Derived advisory — not an official warning
Current conditions · 8:45 PM local
Current conditions in Matsubase
24°C
Mainly clear
Feels like 29°C
- Humidity
- 95%
- Wind
- 5 km/h S
- Gusts
- 12 km/h
- UV index
- 0
- Visibility
- 13.8 km
Air quality
74
Moderate
US AQI · European AQI 40
Air quality in Matsubase is currently moderate, with a US AQI of 74 (European AQI 40). The dominant pollutant right now is ozone. Unusually sensitive people should consider easing prolonged outdoor exertion. Fine particulate matter (PM2.5) measures 9.7 µg/m³.
Pollutants
- PM2.5
- 9.7 µg/m³
- PM10
- 12.7 µg/m³
- Ozone (O₃)
- 99 µg/m³
- NO₂
- 7.1 µg/m³
- SO₂
- 2.3 µg/m³
- CO
- 171 µg/m³
- Dust
- 1 µg/m³
AQI computed from the CAMS air quality model via Open-Meteo. Bands follow the US EPA scale.
Right now
Right now in Matsubase, it's mainly clear with the temperature at 24 °C. It feels warmer than it reads, more like 28 °C. Wind is from the S at 5 km/h. Humidity stands at 84% with sea-level pressure near 1009 hPa.
At a glance
Today
28° / 23°Slight rain · rain likely (100%)
Tomorrow
26° / 20°Slight rain · rain likely (98%)
Upcoming · to Saturday
28° / 17°Highs 28°, lows 17°. The most active day looks like Tuesday, when rain chances peak at 100%.
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Next 3 days
Expect slight rain today, between 23 °C and 28 °C. Rain chance peaks at 100% with around 3.1 mm possible. Tomorrow brings slight rain with a high of 26 °C and a low of 20 °C. Rain chance peaks at 98% with around 10 mm possible. Expect moderate rain Tuesday, between 19 °C and 21 °C. Rain chance peaks at 100% with around 53.2 mm possible.
Tomorrow
Mon, Jun 22
Slight rain
26°20°
- Rain chance
- 98%
- Precip
- 10 mm
- Max wind
- 9 km/h
Tuesday
Tue, Jun 23
Moderate rain
21°19°
- Rain chance
- 100%
- Precip
- 53.2 mm
- Max wind
- 10 km/h
Next 48 hours
- 12 AM25°100%13 km/h
- 1 AM24°96%14 km/h
- 2 AM24°91%13 km/h
- 3 AM24°84%12 km/h
- 4 AM24°74%10 km/h
- 5 AM23°63%9 km/h
- 6 AM23°53%7 km/h
- 7 AM24°47%7 km/h
- 8 AM25°43%7 km/h
- 9 AM25°37%8 km/h
- 10 AM26°26%7 km/h
- 11 AM27°13%7 km/h
- 12 PM27°4%7 km/h
- 1 PM27°0%10 km/h
- 2 PM28°0%11 km/h
- 3 PM28°0%10 km/h
- 4 PM27°4%12 km/h
- 5 PM26°11%10 km/h
- 6 PM26°18%7 km/h
- 7 PM25°26%6 km/h
- 8 PM24°34%4 km/h
- 9 PM24°39%5 km/h
- 10 PM24°37%4 km/h
- 11 PM23°31%2 km/h
- 12 AM23°25%3 km/h
- 1 AM23°19%4 km/h
- 2 AM22°13%4 km/h
- 3 AM22°8%5 km/h
- 4 AM21°7%2 km/h
- 5 AM21°7%3 km/h
- 6 AM21°8%3 km/h
- 7 AM21°10%3 km/h
- 8 AM22°12%4 km/h
- 9 AM24°14%5 km/h
- 10 AM25°13%6 km/h
- 11 AM26°12%7 km/h
- 12 PM26°14%5 km/h
- 1 PM25°21%6 km/h
- 2 PM23°32%6 km/h
- 3 PM23°43%2 km/h
- 4 PM23°54%2 km/h
- 5 PM23°66%3 km/h
- 6 PM23°76%2 km/h
- 7 PM22°82%6 km/h
- 8 PM22°86%7 km/h
- 9 PM21°90%9 km/h
- 10 PM21°94%8 km/h
- 11 PM20°98%8 km/h
In depth
Matsubase starts the period under mainly clear, with the mercury at 24 °C and a feels-like of 28 °C. Today's forecast calls for slight rain, topping out near 28 °C before falling back to 23 °C overnight. Winds blow mainly from the WSW around 14 km/h, with gusts up to 39 km/h. Daytime highs hold fairly steady this week, staying within 21 to 28 °C. Rain is in the picture on today, tomorrow, Tuesday and beyond, with roughly 212 mm expected in total across the week. Tomorrow brings slight rain with a high of 26 °C and a 98% chance of precipitation. The UV index reaches 8 today, so sun protection is sensible during the middle of the day. Sunrise comes at 05:10 and sunset at 19:27, giving 14.3 hours of daylight. Current humidity sits at 84% with pressure near 1009 hPa. Looking further out, Thursday shows thunderstorm with slight hail with a high around 27 °C, while Saturday ends the week at 25 °C. Forecast details are refreshed throughout the day as new model runs arrive, so check back for the latest figures.
Sun & UV
- Sunrise
- 5:10 AM
- Sunset
- 7:27 PM
- Daylight
- 14h 18m
- Max UV
- 7.9 High
Wind
- Wind
- 5 km/h
- Gusts
- 12 km/h
- Direction
- S (180°)
Farming weather
Soil temperatures today read surface 21.3 °C, 6 cm 24.6 °C, 18 cm 25.9 °C, 54 cm 23.5 °C. Soil moisture sits at 0-1 cm at 0.3 m³/m³, 3-9 cm at 0.31 m³/m³, 27-81 cm at 0.37 m³/m³. For wheat, the root-zone reading is within the ideal 0.2-0.35 m³/m³ band. Forecast rain (212 mm) roughly covers crop water demand (ET0 18 mm), so irrigation can likely be paused. A suitable spraying window opens around 06:00 on 2026-06-21, with winds at or below 15 km/h and no rain expected. Projected growing degree days over the next week: wheat 128, maize 90.
- Topsoil moisture
- 0.367 m³/m³
- Soil temp
- 23°C
- ET₀ today
- 3.53 mm
- Spray window
- ~5:00
- Rain (next 7d)
- 212.4 mm
- Wind
- 5 km/h
- Humidity
- 95%
Advisory summary
Weather alerts for Matsubase (derived from forecast data, not official warnings): Heavy rain Tuesday: around 53 mm expected. Heavy rain Wednesday: around 87 mm expected. Heavy rain Thursday: around 58 mm expected.
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All data for Matsubase
| Variable | Value |
|---|---|
| City | Matsubase, Kumamoto, Japan |
| Coordinates | 32.65, 130.66667 |
| Elevation | 4 m |
| Timezone | Asia/Tokyo |
| Population | 26,163 |
| Observed at (local) | 8:45 PM |
| Temperature (2 m) | 24°C |
| Apparent temperature | 29°C |
| Relative humidity (2 m) | 95% |
| Dew point (2 m) | 24°C |
| Precipitation (last hour) | 0 mm |
| Rain | 0 mm |
| Showers | 0 mm |
| Snowfall | 0 cm |
| Weather code (WMO) | 1 |
| Cloud cover | 38% |
| Surface pressure | 1008 hPa |
| Sea-level pressure | 1009 hPa |
| Wind speed (10 m) | 5 km/h |
| Wind gusts (10 m) | 12 km/h |
| Wind direction (10 m) | 180° (S) |
| Visibility | 13.8 km |
| UV index | 0 |
| Day / night | Night |
| Today max / min | 28°C / 23°C |
| Today feels-like max / min | 31°C / 27°C |
| Today precipitation sum | 3.1 mm |
| Today rain sum | 3.1 mm |
| Today snowfall sum | 0 cm |
| Today max precip probability | 100% |
| Today max wind / gusts | 14 km/h / 39 km/h |
| Dominant wind direction | 251° (WSW) |
| Sunrise / sunset | 5:10 AM / 7:27 PM |
| Daylight duration | 14h 18m |
| Sunshine duration | 8h 30m |
| Max UV index | 7.9 |
| Reference evapotranspiration (ET₀) | 3.53 mm |
| Topsoil moisture (0–1 cm) | 0.367 m³/m³ |
| Surface soil temperature | 23°C |
| US AQI | 74 |
| European AQI | 40 |
| PM2.5 | 9.7 µg/m³ |
| PM10 | 12.7 µg/m³ |
| Ozone (O₃) | 99 µg/m³ |
| Nitrogen dioxide (NO₂) | 7.1 µg/m³ |
| Sulphur dioxide (SO₂) | 2.3 µg/m³ |
| Carbon monoxide (CO) | 171 µg/m³ |
| Dust | 1 µg/m³ |
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<iframe src="https://weathertomorrow.cloud/embed/city/jp/kumamoto/matsubase" width="320" height="180" frameborder="0" title="Matsubase weather" loading="lazy"></iframe>Frequently asked questions
Will it rain in Matsubase tomorrow?
Rain is likely in Matsubase tomorrow — the chance of precipitation reaches 98%, with around 10 mm expected.
What is the temperature in Matsubase today?
Today Matsubase sees slight rain with a high of 28 °C and a low of 23 °C.
How hot will it be in Matsubase tomorrow?
Tomorrow's high in Matsubase is forecast at 26 °C with slight rain.
Is it windy in Matsubase today?
No, not especially; gusts only reach up to 39 km/h today.
What is the UV index in Matsubase today?
The UV index peaks at 8 today, which is high.
What time is sunrise and sunset in Matsubase today?
The sun rises at 05:10 and sets at 19:27 local time.
Is the air quality in Matsubase good today?
Air quality is moderate right now, with a US AQI reading of 74.