Roztoky Weather in May
Average highs run from 14°C on May 1 to 17°C on May 31, and lows from 4°C to 7°C. Normal precipitation for the month is 101 mm over about 18 wet days.
May day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
May at a glance
- Average high
- 16°C
- Average low
- 5°C
- Precipitation
- 101 mm
- Reanalysis high
- 26°CMay 13, 2003
- Reanalysis low
- -6°CMay 2, 2007
- Daylight
- 14 h 31 min to 15 h 46 min
- Cloud cover
- 68%
- Humidity
- 80%
- Dew point
- 7°C
- Wind
- 7.6 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 |
|---|---|---|---|---|---|
| May 1 | 14°C | 4°C | 24°C 2012 | -4°C 2007 | 46% |
| May 2 | 14°C | 4°C | 24°C 2012 | -6°C 2007 | 47% |
| May 3 | 14°C | 4°C | 23°C 2012 | -4°C 2000 | 47% |
| May 4 | 15°C | 4°C | 24°C 2018 | -4°C 1994 | 47% |
| May 5 | 15°C | 4°C | 21°C 2018 | -2°C 1994 | 47% |
| May 6 | 15°C | 4°C | 22°C 2015 | -4°C 1999 | 47% |
| May 7 | 15°C | 4°C | 22°C 2003 | -3°C 1999 | 48% |
| May 8 | 15°C | 4°C | 23°C 2003 | -2°C 2011 | 50% |
| May 9 | 15°C | 4°C | 23°C 2003 | -1°C 2019 | 52% |
| May 10 | 15°C | 5°C | 22°C 2003 | -3°C 2017 | 53% |
| May 11 | 15°C | 5°C | 23°C 2012 | -3°C 2017 | 55% |
| May 12 | 15°C | 5°C | 23°C 2012 | -3°C 2020 | 55% |
| May 13 | 15°C | 5°C | 26°C 2003 | -4°C 2020 | 55% |
| May 14 | 15°C | 5°C | 22°C 1997 | 0°C 2009 | 57% |
| May 15 | 16°C | 5°C | 23°C 1997 | 1°C 1995 | 57% |
| May 16 | 16°C | 5°C | 22°C 1997 | -1°C 1995 | 58% |
| May 17 | 16°C | 6°C | 21°C 2013 | -1°C 1995 | 58% |
| May 18 | 16°C | 6°C | 23°C 1994 | 0°C 2004 | 61% |
| May 19 | 16°C | 6°C | 23°C 1996 | -1°C 1999 | 62% |
| May 20 | 16°C | 6°C | 22°C 2003 | 1°C 1991 | 63% |
| May 21 | 16°C | 6°C | 22°C 2007 | 0°C 2020 | 64% |
| May 22 | 16°C | 6°C | 23°C 2007 | -2°C 2020 | 65% |
| May 23 | 16°C | 6°C | 24°C 2007 | 0°C 1998 | 65% |
| May 24 | 16°C | 7°C | 23°C 2007 | -2°C 1998 | 65% |
| May 25 | 16°C | 7°C | 22°C 2007 | -1°C 1998 | 65% |
| May 26 | 16°C | 7°C | 23°C 2007 | 0°C 2004 | 65% |
| May 27 | 16°C | 7°C | 23°C 2003 | 0°C 1997 | 65% |
| May 28 | 17°C | 7°C | 24°C 2000 | 1°C 1991 | 66% |
| May 29 | 17°C | 7°C | 25°C 2005 | 1°C 2015 | 66% |
| May 30 | 17°C | 7°C | 25°C 2005 | 1°C 1997 | 65% |
| May 31 | 17°C | 7°C | 23°C 2005 | 1°C 1991 | 65% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+3).
- May 1
- sunrise 6:05 AM, sunset 8:36 PM
- May 31
- sunrise 5:28 AM, sunset 9:14 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 2026-09-27. Sun and moon: computed with the NOAA solar equations and Meeus.