Killarney Weather in May
Average highs run from 26°C on May 1 to 27°C on May 31, and lows from 25°C to 26°C. Normal precipitation for the month is 105 mm over about 12 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
- 27°C
- Average low
- 25°C
- Precipitation
- 105 mm
- Reanalysis high
- 29°CMay 21, 2008
- Reanalysis low
- 22°CMay 1, 1993
- Daylight
- 13 h 06 min to 13 h 35 min
- Cloud cover
- 48%
- Humidity
- 77%
- Dew point
- 22°C
- Wind
- 19.1 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 | 26°C | 25°C | 27°C 2014 | 22°C 1993 | 32% |
| May 2 | 26°C | 25°C | 27°C 2014 | 23°C 1993 | 32% |
| May 3 | 26°C | 25°C | 28°C 2014 | 22°C 2006 | 31% |
| May 4 | 26°C | 25°C | 27°C 2003 | 23°C 2006 | 31% |
| May 5 | 26°C | 25°C | 27°C 2017 | 23°C 2001 | 30% |
| May 6 | 26°C | 25°C | 29°C 2020 | 23°C 2001 | 29% |
| May 7 | 26°C | 25°C | 28°C 2020 | 23°C 2001 | 28% |
| May 8 | 26°C | 25°C | 28°C 1998 | 22°C 2005 | 29% |
| May 9 | 26°C | 25°C | 28°C 1998 | 22°C 2001 | 30% |
| May 10 | 26°C | 25°C | 29°C 1998 | 23°C 2001 | 32% |
| May 11 | 26°C | 25°C | 29°C 2008 | 23°C 2001 | 34% |
| May 12 | 26°C | 25°C | 29°C 2008 | 22°C 2001 | 35% |
| May 13 | 26°C | 25°C | 29°C 2019 | 23°C 2005 | 37% |
| May 14 | 26°C | 25°C | 29°C 2019 | 23°C 2001 | 39% |
| May 15 | 27°C | 25°C | 28°C 1999 | 23°C 2001 | 41% |
| May 16 | 27°C | 25°C | 29°C 1995 | 22°C 2001 | 43% |
| May 17 | 27°C | 25°C | 29°C 1995 | 24°C 1998 | 46% |
| May 18 | 27°C | 26°C | 28°C 2011 | 24°C 1998 | 48% |
| May 19 | 27°C | 26°C | 28°C 2008 | 24°C 2000 | 49% |
| May 20 | 27°C | 26°C | 29°C 1995 | 24°C 2000 | 50% |
| May 21 | 27°C | 26°C | 29°C 2008 | 24°C 1992 | 52% |
| May 22 | 27°C | 26°C | 29°C 2008 | 24°C 1992 | 53% |
| May 23 | 27°C | 26°C | 29°C 2008 | 24°C 1993 | 54% |
| May 24 | 27°C | 26°C | 29°C 2008 | 24°C 1993 | 55% |
| May 25 | 27°C | 26°C | 29°C 2017 | 24°C 1993 | 56% |
| May 26 | 27°C | 26°C | 29°C 2017 | 24°C 1993 | 57% |
| May 27 | 27°C | 26°C | 28°C 1994 | 24°C 2004 | 58% |
| May 28 | 27°C | 26°C | 29°C 2017 | 25°C 2004 | 59% |
| May 29 | 27°C | 26°C | 29°C 2017 | 25°C 2004 | 61% |
| May 30 | 27°C | 26°C | 28°C 2003 | 25°C 2007 | 63% |
| May 31 | 27°C | 26°C | 28°C 2003 | 24°C 2007 | 64% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (EDT).
- May 1
- sunrise 6:34 AM, sunset 7:40 PM
- May 31
- sunrise 6:20 AM, sunset 7:55 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.