Uruguaiana Weather in May
Average highs run from 24°C on May 1 to 20°C on May 31, and lows from 12°C to 9°C. Normal precipitation for the month is 118 mm over about 9 wet days.
May day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
May at a glance
- Average high
- 22°C
- Average low
- 11°C
- Precipitation
- 118 mm
- Record high
- 34°CMay 12, 2009
- Record low
- 0°CMay 30, 2008
- Daylight
- 10 h 56 min to 10 h 22 min
- Cloud cover
- 52%
- Humidity
- 83%
- Dew point
- 13°C
- Wind
- 13.3 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 |
|---|---|---|---|---|---|
| May 1 | 24°C | 12°C | 33°C 2023 | 0°C 1980 | 35% |
| May 2 | 24°C | 12°C | 32°C 1994 | 7°C 1979 | 35% |
| May 3 | 23°C | 12°C | 31°C 1999 | 6°C 1973 | 34% |
| May 4 | 23°C | 12°C | 31°C 2021 | 4°C 1980 | 33% |
| May 5 | 23°C | 12°C | 31°C 2007 | 4°C 1979 | 33% |
| May 6 | 23°C | 12°C | 34°C 1981 | 5°C 1988 | 33% |
| May 7 | 23°C | 12°C | 32°C 2024 | 3°C 1989 | 33% |
| May 8 | 23°C | 12°C | 31°C 1994 | 4°C 2003 | 32% |
| May 9 | 23°C | 12°C | 32°C 1981 | 3°C 2007 | 31% |
| May 10 | 22°C | 12°C | 30°C 2012 | 4°C 2007 | 30% |
| May 11 | 22°C | 11°C | 30°C 1993 | 1°C 1987 | 29% |
| May 12 | 22°C | 11°C | 34°C 2009 | 3°C 1973 | 28% |
| May 13 | 22°C | 11°C | 32°C 2002 | 4°C 2021 | 28% |
| May 14 | 22°C | 11°C | 32°C 1980 | 2°C 1984 | 28% |
| May 15 | 22°C | 11°C | 33°C 1980 | 3°C 1984 | 30% |
| May 16 | 22°C | 11°C | 29°C 2025 | 3°C 2013 | 30% |
| May 17 | 22°C | 11°C | 27°C 2006 | 1°C 1977 | 30% |
| May 18 | 21°C | 11°C | 30°C 2025 | 2°C 1977 | 30% |
| May 19 | 21°C | 11°C | 28°C 2023 | 0°C 2022 | 30% |
| May 20 | 21°C | 11°C | 30°C 1981 | 3°C 1988 | 29% |
| May 21 | 21°C | 10°C | 33°C 2008 | 3°C 1988 | 29% |
| May 22 | 21°C | 10°C | 31°C 2009 | 2°C 1990 | 28% |
| May 23 | 21°C | 10°C | 33°C 2008 | 2°C 1990 | 28% |
| May 24 | 20°C | 10°C | 31°C 2009 | 2°C 1988 | 29% |
| May 25 | 20°C | 10°C | 30°C 1981 | 1°C 1987 | 29% |
| May 26 | 20°C | 10°C | 30°C 2023 | 1°C 2007 | 29% |
| May 27 | 20°C | 10°C | 29°C 1985 | 2°C 1978 | 29% |
| May 28 | 20°C | 10°C | 29°C 2006 | 0°C 2024 | 28% |
| May 29 | 20°C | 9°C | 31°C 1991 | 0°C 2007 | 28% |
| May 30 | 20°C | 9°C | 30°C 1991 | 0°C 2008 | 27% |
| May 31 | 20°C | 9°C | 29°C 1991 | 0°C 1979 | 27% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-3).
- May 1
- sunrise 7:17 AM, sunset 6:13 PM
- May 31
- sunrise 7:35 AM, sunset 5:57 PM
Other months
Sources
Records: NOAA GHCN-Daily, station ARM00087289, 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 2026-09-29. Sun and moon: computed with the NOAA solar equations and Meeus.