Montevideo Weather in August
Average highs run from 82°F on August 1 to 78°F on August 31, and lows from 60°F to 54°F. Normal precipitation for the month is 3.96 in over about 7 wet days.
August day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
August at a glance
- Average high
- 80°F
- Average low
- 57°F
- Precipitation
- 3.96 in
- Record high
- 106°FAug 15, 1988
- Record low
- 34°FAug 30, 1931
- Chance of a freeze
- 0%
- Days of 90°F or more
- 2.1
- Daylight
- 14 h 40 min to 13 h 17 min
- Cloud cover
- 50%
- Humidity
- 66%
- Dew point
- 58°F
- Wind
- 8.7 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Aug 1 | 82°F | 60°F | 101°F 1930 | 38°F 1971 | 26% | 0% |
| Aug 2 | 82°F | 59°F | 99°F 1982 | 38°F 1971 | 26% | 0% |
| Aug 3 | 82°F | 59°F | 100°F 1930 | 35°F 1971 | 26% | 0% |
| Aug 4 | 82°F | 59°F | 100°F 1931 | 42°F 1971 | 26% | 0% |
| Aug 5 | 81°F | 59°F | 101°F 1959 | 43°F 1971 | 26% | 0% |
| Aug 6 | 81°F | 59°F | 97°F 1894 | 44°F 1971 | 26% | 0% |
| Aug 7 | 81°F | 59°F | 100°F 1988 | 44°F 1903 | 25% | 0% |
| Aug 8 | 81°F | 59°F | 100°F 1983 | 45°F 1902 | 25% | 0% |
| Aug 9 | 81°F | 59°F | 96°F 1914 | 45°F 1917 | 25% | 0% |
| Aug 10 | 81°F | 58°F | 98°F 1947 | 42°F 1903 | 25% | 0% |
| Aug 11 | 81°F | 58°F | 104°F 1988 | 39°F 1902 | 25% | 0% |
| Aug 12 | 81°F | 58°F | 101°F 1988 | 44°F 1893 | 25% | 0% |
| Aug 13 | 81°F | 58°F | 102°F 1895 | 36°F 1964 | 25% | 0% |
| Aug 14 | 81°F | 58°F | 98°F 1978 | 41°F 1977 | 25% | 0% |
| Aug 15 | 80°F | 58°F | 106°F 1988 | 43°F 2004 | 25% | 0% |
| Aug 16 | 80°F | 57°F | 105°F 1988 | 40°F 1970 | 25% | 0% |
| Aug 17 | 80°F | 57°F | 98°F 1976 | 44°F 1981 | 25% | 0% |
| Aug 18 | 80°F | 57°F | 103°F 1976 | 44°F 1977 | 25% | 0% |
| Aug 19 | 80°F | 57°F | 101°F 1976 | 37°F 1967 | 25% | 0% |
| Aug 20 | 80°F | 57°F | 97°F 1901 | 39°F 1950 | 25% | 0% |
| Aug 21 | 80°F | 56°F | 102°F 1976 | 35°F 2004 | 24% | 0% |
| Aug 22 | 80°F | 56°F | 99°F 1976 | 35°F 2004 | 24% | 0% |
| Aug 23 | 79°F | 56°F | 97°F 1925 | 42°F 1927 | 24% | 0% |
| Aug 24 | 79°F | 56°F | 102°F 1929 | 37°F 1934 | 24% | 0% |
| Aug 25 | 79°F | 55°F | 96°F 1949 | 41°F 1934 | 24% | 0% |
| Aug 26 | 79°F | 55°F | 99°F 1976 | 40°F 1914 | 24% | 0% |
| Aug 27 | 79°F | 55°F | 98°F 1976 | 38°F 1896 | 25% | 0% |
| Aug 28 | 79°F | 55°F | 99°F 1984 | 38°F 1934 | 25% | 0% |
| Aug 29 | 78°F | 54°F | 100°F 1921 | 39°F 1917 | 25% | 0% |
| Aug 30 | 78°F | 54°F | 94°F 1929 | 34°F 1931 | 25% | 0% |
| Aug 31 | 78°F | 54°F | 96°F 1927 | 36°F 1895 | 25% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- August 1
- sunrise 6:09 AM, sunset 8:49 PM
- August 31
- sunrise 6:44 AM, sunset 8:01 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00215563 (Montevideo 1SW), public domain. Records: NOAA GHCN-Daily, station USC00215563, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: 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.