Mayen Weather in September
Average highs run from 21°C on September 1 to 16°C on September 30, and lows from 10°C to 7°C. Normal precipitation for the month is 63 mm over about 12 wet days.
September day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
September at a glance
- Average high
- 19°C
- Average low
- 9°C
- Precipitation
- 63 mm
- Daylight
- 13 h 31 min to 11 h 42 min
- Cloud cover
- 67%
- Humidity
- 77%
- Dew point
- 9°C
- Wind
- 14.8 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Sep 1 | 21°C | 10°C | 39% | ||
| Sep 2 | 21°C | 10°C | 37% | ||
| Sep 3 | 21°C | 10°C | 37% | ||
| Sep 4 | 20°C | 10°C | 37% | ||
| Sep 5 | 20°C | 10°C | 37% | ||
| Sep 6 | 20°C | 10°C | 37% | ||
| Sep 7 | 20°C | 10°C | 37% | ||
| Sep 8 | 20°C | 10°C | 37% | ||
| Sep 9 | 20°C | 10°C | 38% | ||
| Sep 10 | 20°C | 9°C | 39% | ||
| Sep 11 | 20°C | 9°C | 38% | ||
| Sep 12 | 20°C | 9°C | 38% | ||
| Sep 13 | 19°C | 9°C | 37% | ||
| Sep 14 | 19°C | 9°C | 36% | ||
| Sep 15 | 19°C | 9°C | 36% | ||
| Sep 16 | 19°C | 9°C | 36% | ||
| Sep 17 | 19°C | 9°C | 36% | ||
| Sep 18 | 19°C | 8°C | 36% | ||
| Sep 19 | 19°C | 8°C | 36% | ||
| Sep 20 | 18°C | 8°C | 36% | ||
| Sep 21 | 18°C | 8°C | 36% | ||
| Sep 22 | 18°C | 8°C | 36% | ||
| Sep 23 | 18°C | 8°C | 36% | ||
| Sep 24 | 18°C | 8°C | 38% | ||
| Sep 25 | 18°C | 8°C | 38% | ||
| Sep 26 | 17°C | 8°C | 39% | ||
| Sep 27 | 17°C | 8°C | 39% | ||
| Sep 28 | 17°C | 8°C | 42% | ||
| Sep 29 | 17°C | 7°C | 44% | ||
| Sep 30 | 16°C | 7°C | 46% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+2).
- September 1
- sunrise 6:45 AM, sunset 8:16 PM
- September 30
- sunrise 7:30 AM, sunset 7:12 PM
Other months
Sources
Records: NOAA GHCN-Daily, station GME00132370, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.