San José de Mayo weather in April

In April, San José de Mayo sees average daytime highs of 22°C and overnight lows near 13°C, with 101 mm of rain across 8 wet days and about 11.2 hours of daylight. It is the 6th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 24°C in the first days to 21°C by the end. The sky is clear or mostly clear about 39% of the time in April, and the air most often feels dry.

Daylight stretches from about 11 h 42 min at the start of April to 10 h 42 min by month's end. Set against the rest of the year, April is San José de Mayo's 6th-clearest and 9th-windiest month. For the whole year in context, see San José de Mayo's year-round climate.

Daytime high
22°
6th warmest
Overnight low
13°
7th coldest
Rainfall
101 mm
8 wet days
Daylight
11 h 06 min
8:13 AM – 7:21 PM
Cloud cover
54%
6th clearest
Wind
13 km/h
9th windiest
Solar energy
3.62 kWh/m²
Travel score
7.1
out of 10

San José de Mayo is city in Uruguay, departmental capital of San José.

Density
2,117/km²
people per km²
Founded
1783

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 24°C in the first days to 21°C by the end.

A typical April day in San José de Mayo reaches about 22°C in the afternoon and slips back to 13°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 27°C. Set against its neighbours, April runs about 4°C cooler than March and about 4°C warmer than May.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12414
22414
32414
42414
52414
62414
72414
82314
92314
102314
112313
122313
132313
142313
152313
162213
172213
182213
192212
202212
212212
222212
232212
242112
252112
262112
272112
282111
292111
302111

San José de Mayo weather by month

How April compares with the rest of the year at a glance. April is the 6th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 18°857.9145.9
Feb28° / 18°1028.213.36.4
Mar26° / 16°1038.112.37.1
Apr22° / 13°101811.27.1
May19° / 10°836.710.26.4
Jun16° / 797.59.85.2
Jul15° / 787.49.94.8
Aug17° / 917.710.75.8
Sep19° / 857.611.86.4
Oct22° / 11°1169.812.96.7
Nov25° / 14°1057.813.87.3
Dec28° / 16°888.314.36.6

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 14% of April, with mostly cloudy or overcast conditions the remaining 47%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15644
25644
35545
45446
55347
65347
75248
85149
95149
105149
115149
125149
135149
145248
155248
165248
175248
185347
195347
205347
215347
225347
235347
245446
255446
265347
275347
285248
295248
305149

Chance of precipitation in April

Any precipitation

San José de Mayo gets around 101 mm of rain over 8 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 26% and peaks near 27% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
126
226
326
426
526
627
727
827
927
1027
1127
1227
1327
1426
1526
1626
1726
1826
1926
2026
2126
2225
2325
2425
2525
2625
2725
2824
2924
3024

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

Most of April feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, April lands in the dry band about 47% of days. Sticky, muggy-or-worse air turns up on roughly 7% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
134252812
235262812
335262712
436262711
536272611
637272610
737272510
838282410
939282310
104128229
114228219
124328209
134527199
144627198
154727188
164827177
174927177
185027167
195127166
205227156
215227156
225526145
235526145
245626144
255726134
265726134
275925133
285925133
295925133
306024133

Wind in April

Winds average 13 km/h in April.

Across April, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 11 h 42 min at the start of April to 10 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over April. Sunrise moves from 8:01 AM to 8:24 AM, and sunset from 7:42 PM to 7:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.78:017:42
211.68:027:40
311.68:037:39
411.68:037:38
511.58:047:36
611.58:057:35
711.58:067:33
811.48:077:32
911.48:077:31
1011.48:087:29
1111.38:097:28
1211.38:107:27
1311.28:107:25
1411.28:117:24
1511.28:127:23
1611.18:137:21
1711.18:147:20
1811.18:147:19
1911.08:157:17
2011.08:167:16
2111.08:177:15
2210.98:187:14
2310.98:187:13
2410.98:197:11
2510.88:207:10
2610.88:217:09
2710.88:227:08
2810.78:227:07
2910.78:237:06
3010.78:247:04

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 3.62 kWh/m².

For context, solar energy here swings from a low near 2.23 kWh/m² to a high of 7.42 kWh/m² in December across the year — April's 3.62 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.3Bright
24.2Bright
34.1Bright
44.1Bright
54.0Bright
64.0Moderate
73.9Moderate
83.9Moderate
93.9Moderate
103.8Moderate
113.8Moderate
123.7Moderate
133.7Moderate
143.7Moderate
153.6Moderate
163.6Moderate
173.6Moderate
183.5Moderate
193.5Moderate
203.5Moderate
213.5Moderate
223.4Moderate
233.4Moderate
243.4Moderate
253.3Moderate
263.3Moderate
273.3Moderate
283.2Moderate
293.2Moderate
303.2Moderate
Planning a trip in April

Is April a good time to visit San José de Mayo?

Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.1
Sightseeing
2nd-best month of the year
5.2
Beach & pool
6th-best month of the year

April is one of the better times to visit San José de Mayo for general sightseeing.

What to pack for San José de Mayo in April

From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In April, San José de Mayo sees daytime highs around 22°C and nights near 13°C. Worth packing: light clothes and rain gear. About 8 days see rain.

light clothesrain gear

Sea temperature near San José de Mayo in April

The nearest coast averages about 19°C in April — 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.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan24Warm
Feb24Warm
Mar23Refreshing
Apr19Cool
May16Cool
Jun13Bracing
Jul11Bracing
Aug12Bracing
Sep14Bracing
Oct17Cool
Nov20Refreshing
Dec23Refreshing

UV index in San José de Mayo in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 6 — 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 16UV 13Jun 18UV 3
UV index (midday)Level
Jan13Extreme
Feb11Extreme
Mar10Very high
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct8Very high
Nov11Extreme
Dec11Extreme
Location & terrain

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.

Santa LucíaCanelonesFloridaDelta del TigreProgresoLas PiedrasLa PazMontevideo

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.

3 km
50 m
16 km
85 m
80 km
202 m
treesgrasslandcroplandartificial surfaceswaterwetland
April weather nearby: Santa Lucía 32 km · Canelones 45 km · Florida 53 km · Delta del Tigre 57 km · Progreso 58 km · Las Piedras 63 km · La Paz 65 km · Montevideo 79 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
none 47%Roman Catholic 37%Protestant 15%atheist 10%

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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).