Santa Lucía weather in May

In May, Santa Lucía sees average daytime highs of 19°C and overnight lows near 10°C, with 81 mm of rain across 6.9 wet days and about 10.2 hours of daylight. It is the 8th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 20°C in the first days to 17°C by the end. The sky is clear or mostly clear about 31% of the time in May, and the air most often feels dry.

Daylight stretches from about 10 h 36 min at the start of May to 9 h 54 min by month's end. Set against the rest of the year, May is Santa Lucía's 12th-clearest and 11th-windiest month. For the whole year in context, see Santa Lucía's year-round climate.

Daytime high
19°
8th warmest
Overnight low
10°
5th coldest
Rainfall
81 mm
6.9 wet days
Daylight
10 h 12 min
8:36 AM – 6:48 PM
Cloud cover
60%
12th clearest
Wind
12 km/h
11th windiest
Solar energy
2.63 kWh/m²
Travel score
6.4
out of 10

Santa Lucía is city in the Canelones Department of southern Uruguay.

Density
429/km²
people per km²
Founded
1782

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 20°C in the first days to 17°C by the end.

A typical May day in Santa Lucía reaches about 19°C in the afternoon and slips back to 10°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 23°C. Set against its neighbours, May runs about 4°C cooler than April and about 3°C warmer than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
12111
22011
32011
42011
52011
62011
72011
82011
92011
102011
111911
121911
131911
141910
151910
161910
171910
181910
191810
201810
211810
221810
231810
24189
25189
26179
27179
28179
29179
30179
31179

Santa Lucía weather by month

How May compares with the rest of the year at a glance. May is the 8th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 18°817.8146.0
Feb28° / 18°1008.313.36.4
Mar26° / 16°988.212.37.1
Apr22° / 13°99811.27.1
May19° / 10°816.910.26.4
Jun16° / 777.39.75.1
Jul15° / 787.39.94.8
Aug17° / 897.610.75.8
Sep19° / 837.911.86.3
Oct21° / 12°1129.712.96.6
Nov24° / 14°1028.313.87.2
Dec28° / 16°84814.36.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 13% of May, with mostly cloudy or overcast conditions the remaining 56%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25149
35149
45149
55050
64852
74852
84852
94753
104753
114654
124555
134456
144357
154357
164159
174159
184159
194060
204060
214060
224060
233961
243961
253961
264060
274060
284159
294159
304258
314258

Chance of precipitation in May

Any precipitation

Santa Lucía gets around 81 mm of rain over 6.9 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 22% and peaks near 23% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
123
223
323
423
522
622
722
822
922
1022
1122
1222
1322
1422
1522
1623
1723
1823
1923
2023
2123
2223
2323
2423
2523
2622
2722
2822
2921
3021
3121

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 70% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
16123142
26322132
36322132
46422122
56422122
66621112
76621112
86721102
96721102
10682192
11682192
12682192
13682192
14682192
15692191
16702091
17702091
18702091
19702091
207019101
21721891
22721891
23731791
24741691
25751591
26761581
27771481
28791371
29801361
30811261
31821251

Wind in May

Winds average 12 km/h in May.

Across May, 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.

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
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 10 h 36 min at the start of May to 9 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over May. Sunrise moves from 8:24 AM to 8:46 AM, and sunset from 7:02 PM to 6:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.68:247:02
210.68:247:01
310.68:257:00
410.58:266:59
510.58:276:58
610.58:286:57
710.58:286:56
810.48:296:55
910.48:306:54
1010.48:316:53
1110.38:326:52
1210.38:326:51
1310.38:336:50
1410.38:346:50
1510.28:356:49
1610.28:366:48
1710.28:366:47
1810.28:376:47
1910.18:386:46
2010.18:396:45
2110.18:396:45
2210.18:406:44
2310.08:416:43
2410.08:426:43
2510.08:426:42
2610.08:436:42
2710.08:446:41
289.98:446:41
299.98:456:40
309.98:466:40
319.98:466:40

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 2.63 kWh/m².

For context, solar energy here swings from a low near 2.21 kWh/m² to a high of 7.47 kWh/m² in December across the year — May's 2.63 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.1Moderate
23.1Moderate
33.1Moderate
43.0Moderate
53.0Moderate
63.0Moderate
72.9Moderate
82.9Moderate
92.9Moderate
102.8Moderate
112.8Moderate
122.7Moderate
132.7Moderate
142.7Moderate
152.6Moderate
162.6Moderate
172.6Moderate
182.5Moderate
192.5Moderate
202.5Moderate
212.5Moderate
222.4Moderate
232.4Moderate
242.4Moderate
252.4Moderate
262.4Moderate
272.4Moderate
282.4Moderate
292.3Moderate
302.3Moderate
312.3Moderate
Planning a trip in May

Is May a good time to visit Santa Lucía?

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

6.4
Sightseeing
6th-best month of the year
2.6
Beach & pool
8th-best month of the year

May is a reasonable time to visit Santa Lucía for sightseeing.

What to pack for Santa Lucía in May

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

In May, Santa Lucía sees daytime highs around 19°C and nights near 10°C. Little to plan around — just the basics. About 7 days see rain.

Sea temperature near Santa Lucía in May

The nearest coast averages about 16°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 47 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 23 to Apr 9 — about 4.5 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan24Refreshing
Feb24Refreshing
Mar23Refreshing
Apr19Cool
May16Cool
Jun13Bracing
Jul11Bracing
Aug12Bracing
Sep14Bracing
Oct17Cool
Nov19Cool
Dec22Refreshing

UV index in Santa Lucía in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Santa Lucía 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
May3Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct8Very high
Nov11Extreme
Dec11Extreme
Location & terrain

Where is Santa Lucía?

Santa Lucía sits at 34.5°S, 56.4°W, 24 m above sea level, in Uruguay. The nearest listed city is Canelones, 13 km away.

San José de MayoLas PiedrasDelta del TigreLa PazFloridaBarros Blancos

Topography around Santa Lucía

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santa Lucía.

Within 3 km, the terrain around Santa Lucía has only modest variations in elevation — a maximum elevation change of 38 m around an average of 18 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 63 m; within 80 km, only modest variations in elevation — a maximum elevation change of 202 m.

The land around Santa Lucía is covered by grassland (41%) and trees (34%) within 3 km, cropland (42%) and grassland (38%) within 16 km, and grassland (40%), cropland (27%) and water (25%) within 80 km.

3 km
38 m
16 km
63 m
80 km
202 m
treesgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Canelones 13 km · Progreso 29 km · San José de Mayo 32 km · Las Piedras 35 km · Delta del Tigre 35 km · La Paz 37 km · Florida 42 km · Barros Blancos 49 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 Santa Lucía (-34.4533°, -56.3906°, elevation 24 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).