worldweather12°Ccooler than usual
usually 12°C–17°C
cooler than 81% of similar days
night: near normal
rain: typical rainfall
wind: typical
Weather in Montevideo - 14-day forecast
Detailed weather forecast for Montevideo, Uruguay: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Montevideo
today🌧️
12°💧 1 mm
Sun🌧️
11°💧 1.2 mm
Mon☁️
11°💧 0.2 mm
Tue☀️
14°💧 0.2 mm
Wed☀️
16°💧 0.5 mm
Thu☀️
18°💧 0.4 mm
Fri🌧️
13°💧 8.4 mm
Sat🌧️
9°💧 25.4 mm
Forecast vs 1991-2020 climate normal
NASA POWERHow does the current forecast compare with normal?
We compare the coming days with weather usually observed at this time of year.
Sunday 6 Sept in Montevideo, the forecast high is 11°C. Typical daytime temperatures at this time of year range from 12°C to 17°C, so it will be exceptionally cool. It is cooler than 91% of similar days.
11°Cexceptionally cool
usually 12°C–17°C
cooler than 91% of similar days
night: cooler than usual
rain: more rain than usual
wind: typical
11°Ccooler than usual
usually 12°C–17°C
cooler than 88% of similar days
night: cooler than usual
rain: typical rainfall
wind: exceptionally light
14°Cnear normal
usually 12°C–17°C
night: warmer than usual
rain: typical rainfall
wind: exceptionally light
16°Cnear normal
usually 13°C–17°C
night: exceptionally warm
rain: typical rainfall
wind: exceptionally light
18°Cwarmer than usual
usually 13°C–17°C
warmer than 87% of similar days
night: exceptionally warm
rain: typical rainfall
wind: exceptionally light
13°Ccooler than usual
usually 13°C–18°C
cooler than 72% of similar days
night: warmer than usual
rain: more rain than usual
wind: stronger than usual
How warm was this week in previous years?
Each bar shows the average daily high during the same 7-day period in each year.
cooler yearstypical rangewarmer years2026 forecastcurrent forecast
From 1981 to 2025, the 5-11 Sept period averaged 15°C by day. The coolest year was 1983 (12°C) and the warmest was 2007 (20°C). The current forecast averages 14°C - lower than in 82% of historical years.
Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.
14-day forecast - Montevideo
Montevideo 30 & 45-day weather - long-range outlook
Next 15 days · forecast
14°
around 12° at night · days with rain: 5
Weeks 3-4 · avg for September
18°
around 9° at night · rain chance 35%
Weeks 5-7 · avg for October
20°
around 12° at night · rain chance 34%
The 30 & 45-day outlook for Montevideo: the next 15 days are a numerical forecast updated daily - on average 14° by day and 12° at night. Further out we rely on multi-year climate averages: around 18° in September, and about 20° in October. Forecasts beyond two weeks are indicative only.
Day-by-day forecast for Montevideo
Saturday5 September 2026
🌧️12°light rain
Sunday6 September 2026
🌧️11°light rain
Monday7 September 2026
☁️11°overcast clouds
Tuesday8 September 2026
☀️14°clear sky
Wednesday9 September 2026
☀️16°clear sky
Thursday10 September 2026
☀️18°clear sky
Friday11 September 2026
🌧️13°moderate rain
Saturday12 September 2026
🌧️9°moderate rain
Sunday13 September 2026
🌧️10°light rain
Monday14 September 2026
☁️10°overcast clouds
Tuesday15 September 2026
☀️15°clear sky
Wednesday16 September 2026
☁️16°overcast clouds
Thursday17 September 2026
☁️17°overcast clouds
Friday18 September 2026
🌤️19°a few clouds
Saturday19 September 2026
☁️20°broken clouds
UV index in Montevideo - is it safe to sunbathe?
Today the UV index in Montevideo is 6 (moderate) - unprotected fair skin can burn in about 35 minutes. Seek shade around midday. SPF 30+, sunglasses and a hat for longer stays.
Sea temperature - Montevideo
Water today
13°C
Week avg
12°C
Waves today
0.8 m
How's the water?
very cold
16-day sea temperature forecast:
Average sea temperature through the year:
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.
Air quality and smog in Montevideo
Air quality in Montevideo is currently good. Fine particulate PM2.5: 15.4 µg/m³, PM10: 17.6 µg/m³.
| City | PM2.5 (µg/m³) | PM10 (µg/m³) | Air quality |
|---|---|---|---|
| Montevideo | 15.4 | 17.6 | good |
Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-04, 22:00).
Montevideo weather through the year
Upcoming public holidays in Uruguay: Day of the race — 12 October · Deceased ones day — 2 November · Christmas Day — 25 December.
Nearby and related places
FAQ - Montevideo weather
What is the weather like in Montevideo today?
Today it is about 12° during the day and 10° at night, light rain.
How far ahead can I check the forecast for Montevideo?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.