San José de Mayo in Fall
In fall (March, April and May), San José de Mayo sees average daytime highs around 22°C and overnight lows near 13°C, with 287 mm of rain over about 23 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 27°C in early March to 17°C by late May. The sky is clear or mostly clear about 37% of the time across fall, and the air most often feels dry.
Fall is San José de Mayo's best season of the year to visit on our travel score. For the whole year in context, see San José de Mayo's year-round climate.
- Avg daytime high
- 22°C
- 2nd-warmest season
- Avg overnight low
- 13°C
- Rainfall
- 287 mm
- 23 wet days
- Avg wind
- 12 km/h
- Travel score
- 6.9
- best season of the year
- Months
- Mar · Apr · May
Temperature in San José de Mayo in Fall
Over the season highs ease from about 27°C in early March to 17°C by late May.
A typical fall day in San José de Mayo reaches about 22°C and drops to 13°C overnight. The warmest of the three months is March, the coolest May.
San José de Mayo 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° | 85 | 7.9 | 14 | 5.9 |
| Feb | 28° / 18° | 102 | 8.2 | 13.3 | 6.4 |
| Mar | 26° / 16° | 103 | 8.1 | 12.3 | 7.1 |
| Apr | 22° / 13° | 101 | 8 | 11.2 | 7.1 |
| May | 19° / 10° | 83 | 6.7 | 10.2 | 6.4 |
| Jun | 16° / 7° | 79 | 7.5 | 9.8 | 5.2 |
| Jul | 15° / 6° | 78 | 7.4 | 9.9 | 4.8 |
| Aug | 17° / 8° | 91 | 7.7 | 10.7 | 5.8 |
| Sep | 19° / 9° | 85 | 7.6 | 11.8 | 6.4 |
| Oct | 22° / 11° | 116 | 9.8 | 12.9 | 6.7 |
| Nov | 25° / 14° | 105 | 7.8 | 13.8 | 7.3 |
| Dec | 28° / 16° | 88 | 8.3 | 14.3 | 6.6 |
Cloud cover in Fall
The sky is clear or mostly clear about 37% of the time across fall.
Chance of precipitation in Fall
San José de Mayo gets around 287 mm of rain over 23 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 9 h 54 min 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 3.8 kWh/m².
Is fall a good time to visit San José de Mayo?
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 San José de Mayo for sightseeing.
What to pack for San José de Mayo in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, San José de Mayo sees daytime highs around 22°C and nights near 13°C. Worth packing: light clothes, rain gear and sun protection. About 23 days see rain.
Sea temperature near San José de Mayo in Fall
The nearest coast averages about 19°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 35 km away) is warmest in January at about 24°C and coldest in July near 11°C.
It's comfortable for a long swim from Nov 17 to Apr 9 — about 4.7 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 24 | 24 | 23 | 19 | 16 | 13 | 11 | 12 | 14 | 17 | 20 | 23 |
| Comfort | Warm | Warm | Refreshing | Cool | Cool | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 24 | Warm |
| Feb | 24 | Warm |
| Mar | 23 | Refreshing |
| Apr | 19 | Cool |
| May | 16 | Cool |
| Jun | 13 | Bracing |
| Jul | 11 | Bracing |
| Aug | 12 | Bracing |
| Sep | 14 | Bracing |
| Oct | 17 | Cool |
| Nov | 20 | Refreshing |
| Dec | 23 | Refreshing |
UV index in San José de Mayo 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 San José de Mayo peaks around January 16 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 | 11 | 10 | 6 | 4 | 3 | 3 | 4 | 6 | 8 | 11 | 11 |
| Level | Extreme | Extreme | Very high | High | Moderate | Moderate | Moderate | Moderate | High | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 11 | 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 | 11 | Extreme |
Where is San José de Mayo?
San José de Mayo sits at 34.3°S, 56.7°W, 53 m above sea level, in Uruguay. The nearest listed city is Santa Lucía, 32 km away.
Topography around San José de Mayo
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San José de Mayo.
Within 3 km, the terrain around San José de Mayo has only modest variations in elevation — a maximum elevation change of 50 m around an average of 37 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 85 m; within 80 km, only modest variations in elevation — a maximum elevation change of 202 m.
The land around San José de Mayo is covered by grassland (40%), artificial surfaces (23%) and trees (21%) within 3 km, cropland (51%) and grassland (37%) within 16 km, and grassland (39%), cropland (33%) and water (21%) 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 San José de Mayo (-34.339°, -56.7134°, elevation 53 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.