Treinta y Tres in Fall
In fall (March, April and May), Treinta y Tres sees average daytime highs around 23°C and overnight lows near 13°C, with 287 mm of rain over about 24 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 28°C in early March to 18°C by late May. The sky is clear or mostly clear about 32% of the time across fall, and the air most often feels dry.
Fall is Treinta y Tres's best season of the year to visit on our travel score. For the whole year in context, see Treinta y Tres's year-round climate.
- Avg daytime high
- 23°C
- 2nd-warmest season
- Avg overnight low
- 13°C
- Rainfall
- 287 mm
- 24 wet days
- Avg wind
- 12 km/h
- Travel score
- 6.8
- best season of the year
- Months
- Mar · Apr · May
Temperature in Treinta y Tres in Fall
Over the season highs ease from about 28°C in early March to 18°C by late May.
A typical fall day in Treinta y Tres reaches about 23°C and drops to 13°C overnight. The warmest of the three months is March, the coolest May.
Treinta y Tres weather by month
How the three fall months (March, April and May) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 29° / 18° | 83 | 8.5 | 13.9 | 5.8 |
| Feb | 28° / 18° | 94 | 8.9 | 13.2 | 6.1 |
| Mar | 27° / 16° | 82 | 8.7 | 12.3 | 6.8 |
| Apr | 23° / 14° | 108 | 8.7 | 11.2 | 7.0 |
| May | 19° / 10° | 97 | 7 | 10.3 | 6.6 |
| Jun | 17° / 8° | 91 | 8.1 | 9.8 | 5.5 |
| Jul | 16° / 7° | 89 | 8 | 10 | 5.3 |
| Aug | 18° / 8° | 103 | 8.2 | 10.8 | 6.1 |
| Sep | 19° / 9° | 99 | 8.6 | 11.8 | 6.3 |
| Oct | 22° / 12° | 112 | 10 | 12.8 | 6.6 |
| Nov | 25° / 14° | 92 | 8.1 | 13.7 | 7.2 |
| Dec | 28° / 16° | 87 | 8.4 | 14.2 | 6.6 |
Cloud cover in Fall
The sky is clear or mostly clear about 32% of the time across fall.
Chance of precipitation in Fall
Treinta y Tres gets around 287 mm of rain over 24 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 12 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 48 min in early March to 10 hours by late May. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 3.7 kWh/m².
Is fall a good time to visit Treinta y Tres?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Treinta y Tres for sightseeing.
What to pack for Treinta y Tres in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Treinta y Tres sees daytime highs around 23°C and nights near 13°C. Worth packing: light clothes, rain gear and sun protection. About 24 days see rain.
UV index in Treinta y Tres in Fall
Clear-sky midday UV across fall averages around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Treinta y Tres peaks around January 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 13 | 12 | 10 | 6 | 4 | 3 | 3 | 4 | 6 | 8 | 11 | 12 |
| Level | Extreme | Extreme | Very high | High | Moderate | Moderate | Moderate | Moderate | High | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 12 | Extreme |
| Mar | 10 | Very high |
| Apr | 6 | High |
| May | 4 | Moderate |
| Jun | 3 | Moderate |
| Jul | 3 | Moderate |
| Aug | 4 | Moderate |
| Sep | 6 | High |
| Oct | 8 | Very high |
| Nov | 11 | Extreme |
| Dec | 12 | Extreme |
Where is Treinta y Tres?
Treinta y Tres sits at 33.2°S, 54.4°W, 55 m above sea level, in Uruguay. The nearest listed city is Melo, 98 km away.
Topography around Treinta y Tres
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Treinta y Tres.
Within 3 km, the terrain around Treinta y Tres has only modest variations in elevation — a maximum elevation change of 44 m around an average of 40 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 144 m; within 80 km, significant variations in elevation — a maximum elevation change of 375 m.
The land around Treinta y Tres is covered by grassland (38%), trees (35%) and artificial surfaces (24%) within 3 km, grassland (72%) within 16 km, and grassland (69%) within 80 km.
Uruguay travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F / I / L
- 230 V · 50 Hz
- Prices
- ≈ 66% of US
- price level, 2025
- GDP per capita
- $25,216
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Homicide rate
- 11.2
- per 100k, 2023
- Road deaths
- 14.8
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 542
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Treinta y Tres (-33.231°, -54.3858°, elevation 55 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.