Climate averages 1991–2020
Montevideo weather
in October.
A mild, wet month: the 7th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a mild month in Montevideo: daytime highs average 18.2°C and nights cool to about 13.1°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 111 mm of rain on roughly 9 days, which makes October a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 56 min on an average October day.
The nearest other city in this atlas is Maldonado (113 km away). In October its highs average 17.5°C, 0.7°C cooler than Montevideo, with 98 mm of rain.
Among the 4 cities listed in Uruguay, Montevideo ranks 3rd of 4 for the warmest October highs and 2nd of 4 for the driest October (rainfall, lowest first). The mean October high of those 4 cities is 20.3°C; Montevideo is 2.1°C cooler than that mean.
From October to November, average highs rise by 2.9°C to 21.1°C, and monthly rainfall falls from 111 mm to 101 mm.
The annual picture
October in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Montevideo climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.2°C19.6°C | 19.6°C | 68 | 5.9 | 14.214 h |
| February | 24.7°C19.6°C | 19.6°C | 92 | 7.8 | 13.413 h |
| March | 23.2°C18.3°C | 18.3°C | 97 | 7.9 | 12.312 h |
| April | 20.1°C15.5°C | 15.5°C | 107 | 8.3 | 11.211 h |
| May | 16.7°C12.6°C | 12.6°C | 87 | 7.9 | 10.310 h |
| June | 14.0°C9.8°C | 9.8°C | 90 | 8.6 | 9.910 h |
| July | 12.8°C8.5°C | 8.5°C | 96 | 8.9 | 10.010 h |
| August | 14.5°C9.5°C | 9.5°C | 97 | 8.5 | 10.811 h |
| September | 15.6°C10.6°C | 10.6°C | 92 | 8.3 | 11.812 h |
| October, selected | 18.2°C13.1°C | 13.1°C | 111 | 8.7 | 12.913 h |
| November | 21.1°C15.4°C | 15.4°C | 101 | 7.7 | 13.914 h |
| December | 23.7°C17.9°C | 17.9°C | 73 | 6.9 | 14.414 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
October in nearby cities
- Maldonado in OctoberUruguay · 113 kmHigh 17.5°C · Low 12.4°C · 98 mm rain
- Berisso in OctoberArgentina · 155 kmHigh 19.9°C · Low 13.1°C · 111 mm rain
- La Plata in OctoberArgentina · 161 kmHigh 19.9°C · Low 12.8°C · 102 mm rain
- Berazategui in OctoberArgentina · 185 kmHigh 20.0°C · Low 13.1°C · 109 mm rain
- Quilmes in OctoberArgentina · 190 kmHigh 20.3°C · Low 12.7°C · 109 mm rain
- Mar del Tuyú in OctoberArgentina · 191 kmHigh 16.4°C · Low 12.3°C · 85 mm rain
- Avellaneda in OctoberArgentina · 201 kmHigh 20.4°C · Low 13.0°C · 109 mm rain
- Buenos Aires in OctoberArgentina · 203 kmHigh 20.2°C · Low 13.3°C · 119 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Montevideo) is explained once on the Montevideo year overview and on the Sources, method and limits page.