worldweather13°Cexceptionally cool
usually 15°C–23°C
cooler than 91% of similar days
night: cooler than usual
rain: typical rainfall
wind: exceptionally strong
Weather in Treinta y Tres - 14-day forecast
Detailed weather forecast for Treinta y Tres, Uruguay: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Treinta y Tres
today🌧️
13°💧 0.5 mm
Sun🌧️
10°💧 0.4 mm
Mon☀️
11°💧 0.4 mm
Tue☁️
16°💧 0.1 mm
Wed☀️
16°💧 0.2 mm
Thu🌤️
17°💧 3.7 mm
Fri🌧️
14°💧 12.8 mm
Sat🌧️
9°💧 34.9 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 Treinta y Tres, the forecast high is 10°C. Typical daytime temperatures at this time of year range from 15°C to 22°C, so it will be exceptionally cool. It is cooler than 97% of similar days.
10°Cexceptionally cool
usually 15°C–22°C
cooler than 97% of similar days
night: cooler than usual
rain: typical rainfall
wind: typical
11°Cexceptionally cool
usually 15°C–22°C
cooler than 96% of similar days
night: near normal
rain: typical rainfall
wind: typical
16°Ccooler than usual
usually 15°C–22°C
cooler than 77% of similar days
night: warmer than usual
rain: typical rainfall
wind: exceptionally light
16°Cnear normal
usually 15°C–22°C
night: warmer than usual
rain: typical rainfall
wind: lighter than usual
17°Cnear normal
usually 16°C–22°C
night: warmer than usual
rain: more rain than usual
wind: typical
14°Cexceptionally cool
usually 16°C–22°C
cooler than 92% of similar days
night: exceptionally warm
rain: more rain than usual
wind: exceptionally strong
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 20°C by day. The coolest year was 2008 (16°C) and the warmest was 2007 (26°C). The current forecast averages 14°C - lower than in 100% 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Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window.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 - Treinta y Tres
Treinta y Tres 30 & 45-day weather - long-range outlook
Next 15 days · forecast
15°
around 10° at night · days with rain: 5
Weeks 3-4 · avg for September
20°
around 12° at night · rain chance 27%
Weeks 5-7 · avg for October
22°
around 13° at night · rain chance 26%
The 30 & 45-day outlook for Treinta y Tres: the next 15 days are a numerical forecast updated daily - on average 15° by day and 10° at night. Further out we rely on multi-year climate averages: around 20° in September, and about 22° in October. Forecasts beyond two weeks are indicative only.
Day-by-day forecast for Treinta y Tres
Saturday5 September 2026
🌧️13°light rain
Sunday6 September 2026
🌧️10°light rain
Monday7 September 2026
☀️11°clear sky
Tuesday8 September 2026
☁️16°broken clouds
Wednesday9 September 2026
☀️16°clear sky
Thursday10 September 2026
🌤️17°a few clouds
Friday11 September 2026
🌧️14°moderate rain
Saturday12 September 2026
🌧️9°moderate rain
Sunday13 September 2026
🌧️11°light rain
Monday14 September 2026
☁️11°overcast clouds
Tuesday15 September 2026
☀️14°clear sky
Wednesday16 September 2026
🌤️17°a few clouds
Thursday17 September 2026
☁️18°overcast clouds
Friday18 September 2026
🌤️21°scattered clouds
Saturday19 September 2026
🌧️19°light rain
UV index in Treinta y Tres - is it safe to sunbathe?
Today the UV index in Treinta y Tres 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.
Treinta y Tres 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 - Treinta y Tres weather
What is the weather like in Treinta y Tres today?
Today it is about 13° during the day and 4° at night, light rain.
How far ahead can I check the forecast for Treinta y Tres?
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.