See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:21
Sunrise
19:19
Sunset
Moon
Waxing Gibbous
17:37
Moonrise
01:53
Moonset
Daily Forecast
Today
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Air Quality Data Available
Upgrade to access real-time air quality data for Diez.
Resources
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Diez.
View stargazing scoreWeather in Diez today, September 21, 2026
Diez stays under cloudy skies on September 21, 2026, with only brief brighter breaks. Plan for a day that feels grey more often than open. The first half of the day looks overcast, as cloud amounts reach about 91% around 11:00. Brighter weather, if it comes, waits until later.
The temperature range runs from about 10°C up to 18°C. Relative humidity sits between 56% and 82%, reaching its peak around 23:00. Airflow remains manageable, reaching about 3.4 km/h around 16:00.
Through the afternoon cloud remains the main feature, with cover near 100% around 13:00. Bright spells should stay limited even as the day wears on. Horizontal visibility sits around 38.7 km, briefly nearer 35.4 km. Sunrise is at 07:21 and sunset at 19:19, giving 11 hours 58 minutes of sunlight today.
Overall, Diez on September 21, 2026 stays grey and muted, so outdoor plans may want a flexible backup even with a high near 18°C.
Frequently asked questions about weather in Diez
How warm does it get in Diez?
The warmest month in Diez is August, with average high temperatures of 24°C. The average temperature during this period is around 19°C.
How cold does it get in Diez?
The coldest month in Diez is January, with average low temperatures of 0°C. The average temperature during this period is around 2°C.
What is the wettest time of year in Diez?
The wettest month in Diez is June, with an average of 85mm of precipitation.
What is the driest time of year in Diez?
The driest month in Diez is April, with an average of 56mm of precipitation.
Explore more weather forecasts
- Montabaur, Rheinland-Pfalz
- Berlin, Land Berlin
- Lahnstein, Rheinland-Pfalz
- Hamburg, Free and Hanseatic City of Hamburg
- Koblenz, Rheinland-Pfalz
- Munich, Bavaria
- Bendorf, Rheinland-Pfalz
- Köln, Nordrhein-Westfalen
- Boppard, Rheinland-Pfalz
- Frankfurt am Main, Hessen
- Mülheim-Kärlich, Rheinland-Pfalz
- Stuttgart, Baden-Württemberg
- Neuwied, Rheinland-Pfalz
- Düsseldorf, Nordrhein-Westfalen
- Andernach, Rheinland-Pfalz
- Essen, Nordrhein-Westfalen