Treinta y Tres in Spring
In spring (September, October and November), Treinta y Tres sees average daytime highs around 22°C and overnight lows near 12°C, with 303 mm of rain over about 27 wet days across the season. It is the 3rd-warmest season and the wettest season of the year.
Over the season highs climb from about 19°C in early September to 26°C by late November. The sky is clear or mostly clear about 32% of the time across spring, and the air most often feels dry.
Spring is Treinta y Tres's 2nd-best season to visit on our travel score. For the whole year in context, see Treinta y Tres's year-round climate.
- Avg daytime high
- 22°C
- 3rd-warmest season
- Avg overnight low
- 12°C
- Rainfall
- 303 mm
- 27 wet days
- Avg wind
- 14 km/h
- Travel score
- 6.7
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Treinta y Tres in Spring
Over the season highs climb from about 19°C in early September to 26°C by late November.
A typical spring day in Treinta y Tres reaches about 22°C and drops to 12°C overnight. The warmest of the three months is November, the coolest September.
Treinta y Tres weather by month
How the three spring months (September, October and November) 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 Spring
The sky is clear or mostly clear about 32% of the time across spring.
Chance of precipitation in Spring
Treinta y Tres gets around 303 mm of rain over 27 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 14 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 18 min in early September to 14 hours by late November. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 5.2 kWh/m².
Is spring a good time to visit Treinta y Tres?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a reasonable time to visit Treinta y Tres for sightseeing.
What to pack for Treinta y Tres in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Treinta y Tres sees daytime highs around 22°C and nights near 12°C. Pack sun protection. Worth having: light clothes and rain gear. About 27 days see rain.
UV index in Treinta y Tres in Spring
Clear-sky midday UV across spring averages around 8 (very high — sun protection essential). 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.