San José de Mayo weather in March

In March, San José de Mayo sees average daytime highs of 26°C and overnight lows near 16°C, with 103 mm of rain across 8.1 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 27°C in the first days to 25°C by the end. The sky is clear or mostly clear about 42% of the time in March, and the air most often feels humid.

Daylight stretches from about 12 h 48 min at the start of March to 11 h 42 min by month's end. Set against the rest of the year, March is San José de Mayo's 3rd-clearest and 12th-windiest month. For the whole year in context, see San José de Mayo's year-round climate.

Daytime high
26°
4th warmest
Overnight low
16°
9th coldest
Rainfall
103 mm
8.1 wet days
Daylight
12 h 18 min
7:49 AM – 8:04 PM
Cloud cover
49%
3rd clearest
Wind
12 km/h
12th windiest
Solar energy
5 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 March

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 27°C in the first days to 25°C by the end.

A typical March day in San José de Mayo reaches about 26°C in the afternoon and slips back to 16°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 30°C. Set against its neighbours, March runs about 2°C cooler than February and about 4°C warmer than April.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12717
22717
32717
42717
52717
62717
72717
82717
92717
102717
112717
122716
132616
142616
152616
162616
172616
182616
192616
202616
212515
222515
232515
242515
252515
262515
272515
282515
292515
302515
312415

San José de Mayo weather by month

How March compares with the rest of the year at a glance. March is the 4th-warmest and 3rd-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 March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 15% of March, with mostly cloudy or overcast conditions the remaining 42%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
26040
36040
45941
55941
65941
75941
85842
95941
105842
115842
125842
135743
145743
155743
165644
175644
185644
195644
205644
215743
225644
235644
245644
255842
265842
275842
285743
295743
305743
315743

Chance of precipitation in March

Any precipitation

San José de Mayo gets around 103 mm of rain over 8.1 wet days in March. The line is the day-by-day chance of measurable precipitation.

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

0%10%20%30%40%151015202531
Rain chance (%)
126
226
326
426
526
627
727
827
927
1027
1127
1227
1327
1427
1527
1627
1727
1827
1927
2027
2127
2227
2326
2426
2526
2626
2726
2826
2926
3026
3126

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the humid band about 30% of days. Sticky, muggy-or-worse air turns up on roughly 23% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1152330248
2152330238
3152330238
4152331238
5162331238
6162331238
7162331237
8172331237
9172331237
10172331237
11182331226
12182331226
13192330225
14202430215
15212430214
16222430204
17242429203
18252429193
19262429192
20272429182
21282429181
22292430171
23292430161
24302430160
25312430150
26312430150
27322430140
28322430140
29332529130
30332529130
31342529130

Wind in March

Winds average 12 km/h in March, the calmest month.

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

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light 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
3112light breeze

Sunrise & sunset in March

DaylightNight

Daylight runs from about 12 h 48 min at the start of March to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over March. Sunrise moves from 7:36 AM to 8:00 AM, and sunset from 8:24 PM to 7:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.87:368:24
212.87:378:23
312.77:388:22
412.77:398:21
512.77:398:19
612.67:408:18
712.67:418:17
812.67:428:15
912.57:438:14
1012.57:448:13
1112.47:448:11
1212.47:458:10
1312.47:468:09
1412.37:478:07
1512.37:488:06
1612.37:498:04
1712.27:498:03
1812.27:508:02
1912.27:518:00
2012.17:527:59
2112.17:537:57
2212.07:537:56
2312.07:547:55
2412.07:557:53
2511.97:567:52
2611.97:567:50
2711.97:577:49
2811.87:587:48
2911.87:597:46
3011.88:007:45
3111.78:007:43

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 5 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 — March's 5 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.5Bright
45.5Bright
55.5Bright
65.4Bright
75.4Bright
85.3Bright
95.3Bright
105.2Bright
115.2Bright
125.2Bright
135.1Bright
145.1Bright
155.0Bright
165.0Bright
174.9Bright
184.9Bright
194.8Bright
204.8Bright
214.8Bright
224.7Bright
234.7Bright
244.6Bright
254.6Bright
264.5Bright
274.5Bright
284.5Bright
294.4Bright
304.3Bright
314.3Bright
Planning a trip in March

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

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

7.1
Sightseeing
2nd-best month of the year
6.8
Beach & pool
4th-best month of the year

March is one of the better times to visit San José de Mayo for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for San José de Mayo in March

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

In March, San José de Mayo sees daytime highs around 26°C and nights near 16°C. Worth packing: light clothes, rain gear and sun protection. About 8 days see rain.

light clothesrain gearsun protection

Sea temperature near San José de Mayo in March

The nearest coast averages about 23°C in March — 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 March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 10 (very high — sun protection essential). 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
March 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).