Today
Mon, Jun 22
Overcast
26°21°
- Rain chance
- 35%
- Precip
- 0 mm
- Max wind
- 14 km/h
Aichi, Japan · Tokyo time · 35.33°, 136.87°
Current conditions · 1:45 PM local
25°C
Partly cloudy
Feels like 25°C
38
Good
US AQI · European AQI 33
Air quality in Kōnan is currently good, with a US AQI of 38 (European AQI 33). The dominant pollutant right now is ozone. Air quality is healthy; no precautions needed. Fine particulate matter (PM2.5) measures 4.7 µg/m³.
AQI computed from the CAMS air quality model via Open-Meteo. Bands follow the US EPA scale.
Right now in Kōnan, it's partly cloudy with the temperature at 25 °C. It feels close to the actual reading at 27 °C. Wind is from the NW at 12 km/h, gusting to 39 km/h. Humidity stands at 64% with sea-level pressure near 1005 hPa.
Overcast · 35% chance of rain
Overcast
Highs 30°, lows 17°. The most active day looks like Friday, when rain chances peak at 90%.
Today looks like overcast; temperatures run from 21 °C up to 26 °C. Rain chance peaks at 35%. Gusts may reach 43 km/h from the NW. Expect overcast tomorrow, between 19 °C and 32 °C. Wednesday brings overcast with a high of 25 °C and a low of 18 °C. Rain chance peaks at 37%.
Today
Mon, Jun 22
Overcast
26°21°
Tomorrow
Tue, Jun 23
Overcast
32°19°
Wednesday
Wed, Jun 24
Overcast
25°19°
The weather picture for Kōnan opens with partly cloudy; it's 25 °C out, feeling like 27 °C. Today's forecast calls for overcast, topping out near 26 °C before falling back to 21 °C overnight. Winds blow mainly from the NW around 14 km/h, with gusts up to 43 km/h. A warming trend takes daytime highs from 25 to 32 °C over the coming week. Rain is in the picture on Friday, with roughly 12 mm expected in total across the week. Tomorrow brings overcast with a high of 32 °C and a 4% chance of precipitation. The UV index reaches 6 today, so sun protection is sensible during the middle of the day. Sunrise comes at 04:38 and sunset at 19:10, giving 14.5 hours of daylight. Current humidity sits at 64% with pressure near 1005 hPa. Looking further out, Friday shows thunderstorm with a high around 25 °C, while Sunday ends the week at 30 °C. Forecast details are refreshed throughout the day as new model runs arrive, so check back for the latest figures.
Soil temperatures today read surface 19.1 °C, 6 cm 21.8 °C, 18 cm 23.1 °C, 54 cm 22.4 °C. Soil moisture sits at 0-1 cm at 0.33 m³/m³, 3-9 cm at 0.34 m³/m³, 27-81 cm at 0.36 m³/m³. For wheat, the root-zone reading is within the ideal 0.2-0.35 m³/m³ band. ET0 of 24 mm modestly outpaces the 12 mm of forecast rain; light supplemental irrigation may help. A suitable spraying window opens around 05:00 on 2026-06-22, with winds at or below 15 km/h and no rain expected. Projected growing degree days over the next week: wheat 132, maize 93.
No weather alert thresholds are crossed for Kōnan in the current forecast (derived from forecast data, not official warnings). Conditions may still change — check back for updates.
| Variable | Value |
|---|---|
| City | Kōnan, Aichi, Japan |
| Coordinates | 35.33165, 136.87042 |
| Elevation | 19 m |
| Timezone | Asia/Tokyo |
| Population | 98,255 |
| Observed at (local) | 1:45 PM |
| Temperature (2 m) | 25°C |
| Apparent temperature | 25°C |
| Relative humidity (2 m) | 81% |
| Dew point (2 m) | 19°C |
| Precipitation (last hour) | 0 mm |
| Rain | 0 mm |
| Showers | 0 mm |
| Snowfall | 0 cm |
| Weather code (WMO) | 2 |
| Cloud cover | 61% |
| Surface pressure | 1002 hPa |
| Sea-level pressure | 1005 hPa |
| Wind speed (10 m) | 12 km/h |
| Wind gusts (10 m) | 39 km/h |
| Wind direction (10 m) | 307° (NW) |
| Visibility | 22.4 km |
| UV index | 0 |
| Day / night | Day |
| Today max / min | 26°C / 21°C |
| Today feels-like max / min | 27°C / 22°C |
| Today precipitation sum | 0 mm |
| Today rain sum | 0 mm |
| Today snowfall sum | 0 cm |
| Today max precip probability | 35% |
| Today max wind / gusts | 14 km/h / 43 km/h |
| Dominant wind direction | 308° (NW) |
| Sunrise / sunset | 4:38 AM / 7:10 PM |
| Daylight duration | 14h 33m |
| Sunshine duration | 2h 26m |
| Max UV index | 6.3 |
| Reference evapotranspiration (ET₀) | 3.19 mm |
| Topsoil moisture (0–1 cm) | 0.354 m³/m³ |
| Surface soil temperature | 21°C |
| US AQI | 38 |
| European AQI | 33 |
| PM2.5 | 4.7 µg/m³ |
| PM10 | 6.8 µg/m³ |
| Ozone (O₃) | 82 µg/m³ |
| Nitrogen dioxide (NO₂) | 3.4 µg/m³ |
| Sulphur dioxide (SO₂) | 2.2 µg/m³ |
| Carbon monoxide (CO) | 112 µg/m³ |
| Dust | 0 µg/m³ |
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<iframe src="https://weathertomorrow.cloud/embed/city/jp/aichi/konan" width="320" height="180" frameborder="0" title="Kōnan weather" loading="lazy"></iframe>Rain is unlikely in Kōnan tomorrow; the precipitation chance stays around 4%.
Today Kōnan sees overcast with a high of 26 °C and a low of 21 °C.
Tomorrow's high in Kōnan is forecast at 32 °C with overcast.
Yes, yes — gusts up to 43 km/h today.
The UV index peaks at 6 today, which is high.
The sun rises at 04:38 and sets at 19:10 local time.
Air quality is good right now, with a US AQI reading of 38.