Slawi Weather in September
Average highs run from 29°C on September 1 to 30°C on September 30, and lows from 20°C to 21°C. Normal precipitation for the month is 57 mm over about 9 wet days.
September day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
September at a glance
- Average high
- 30°C
- Average low
- 20°C
- Precipitation
- 57 mm
- Reanalysis high
- 34°CSep 24, 2019
- Reanalysis low
- 17°CSep 4, 2006
- Daylight
- 11 h 59 min to 12 h 09 min
- Cloud cover
- 45%
- Humidity
- 81%
- Dew point
- 21°C
- Wind
- 13.0 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 | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| Sep 1 | 29°C | 20°C | 31°C 1991 | 17°C 1994 | 25% |
| Sep 2 | 29°C | 20°C | 31°C 1991 | 17°C 1994 | 25% |
| Sep 3 | 29°C | 20°C | 31°C 1991 | 17°C 2006 | 25% |
| Sep 4 | 29°C | 20°C | 31°C 2019 | 17°C 2006 | 24% |
| Sep 5 | 29°C | 20°C | 31°C 1991 | 17°C 2006 | 24% |
| Sep 6 | 29°C | 20°C | 31°C 1991 | 18°C 2006 | 24% |
| Sep 7 | 29°C | 20°C | 31°C 1991 | 18°C 2006 | 23% |
| Sep 8 | 30°C | 20°C | 31°C 1991 | 18°C 2003 | 23% |
| Sep 9 | 30°C | 20°C | 32°C 1991 | 18°C 2002 | 24% |
| Sep 10 | 30°C | 20°C | 32°C 2019 | 17°C 2002 | 24% |
| Sep 11 | 30°C | 20°C | 32°C 2019 | 18°C 2013 | 24% |
| Sep 12 | 30°C | 20°C | 32°C 1991 | 18°C 2007 | 25% |
| Sep 13 | 30°C | 20°C | 32°C 1991 | 17°C 2019 | 25% |
| Sep 14 | 30°C | 20°C | 32°C 2008 | 18°C 2007 | 26% |
| Sep 15 | 30°C | 20°C | 31°C 2008 | 19°C 1997 | 26% |
| Sep 16 | 30°C | 21°C | 32°C 1994 | 19°C 1991 | 26% |
| Sep 17 | 30°C | 21°C | 32°C 2019 | 18°C 1991 | 28% |
| Sep 18 | 30°C | 21°C | 32°C 2019 | 18°C 1991 | 29% |
| Sep 19 | 30°C | 21°C | 32°C 1991 | 18°C 1997 | 31% |
| Sep 20 | 30°C | 21°C | 33°C 1991 | 18°C 1997 | 33% |
| Sep 21 | 30°C | 21°C | 33°C 1991 | 18°C 1997 | 32% |
| Sep 22 | 30°C | 21°C | 33°C 1991 | 18°C 1997 | 32% |
| Sep 23 | 30°C | 21°C | 33°C 2019 | 18°C 2006 | 33% |
| Sep 24 | 30°C | 21°C | 34°C 2019 | 18°C 2006 | 34% |
| Sep 25 | 30°C | 21°C | 33°C 2019 | 18°C 1997 | 34% |
| Sep 26 | 30°C | 21°C | 33°C 2019 | 19°C 2006 | 36% |
| Sep 27 | 30°C | 21°C | 33°C 2019 | 18°C 1994 | 36% |
| Sep 28 | 30°C | 21°C | 33°C 2003 | 18°C 2006 | 37% |
| Sep 29 | 30°C | 21°C | 33°C 2003 | 19°C 2009 | 38% |
| Sep 30 | 30°C | 21°C | 33°C 2018 | 19°C 1994 | 39% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+7).
- September 1
- sunrise 5:44 AM, sunset 5:43 PM
- September 30
- sunrise 5:29 AM, sunset 5:38 PM
Other months
Sources
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.