Canelones weather in May

In May, Canelones sees average daytime highs of 19°C and overnight lows near 10°C, with 83 mm of rain across 6.9 wet days and about 10.2 hours of daylight. It is the 8th-warmest and 9th-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 30% 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 Canelones's 12th-clearest and 11th-windiest month. For the whole year in context, see Canelones's year-round climate.

Daytime high
19°
8th warmest
Overnight low
10°
5th coldest
Rainfall
83 mm
6.9 wet days
Daylight
10 h 12 min
8:35 AM – 6:47 PM
Cloud cover
61%
12th clearest
Wind
12 km/h
11th windiest
Solar energy
2.59 kWh/m²
Travel score
6.4
out of 10

Canelones is city in Uruguay.

Density
2,089/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 Canelones 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
121910
131910
141910
151910
161910
171910
181910
191810
201810
211810
221810
231810
24189
25189
26179
27179
28179
29179
30179
31179

Canelones weather by month

How May compares with the rest of the year at a glance. May is the 8th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 18°797.5146.1
Feb28° / 18°1018.313.36.5
Mar26° / 16°988.412.37.1
Apr22° / 13°1018.111.27.1
May19° / 10°836.910.26.4
Jun16° / 817.49.75.1
Jul15° / 817.49.94.8
Aug17° / 917.710.75.8
Sep18° / 847.911.86.3
Oct21° / 12°1159.712.96.6
Nov24° / 14°998.113.87.3
Dec27° / 16°858.114.36.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of May, with mostly cloudy or overcast conditions the remaining 57%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24951
34951
44951
54951
64951
74852
84753
94753
104654
114654
124555
134456
144456
154357
164258
174258
184159
194060
204060
214060
223961
233961
244060
254060
264060
274060
284159
294159
304159
314159

Chance of precipitation in May

Any precipitation

Canelones gets around 83 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 (%)
122
222
322
422
521
621
721
821
921
1021
1121
1221
1322
1422
1522
1623
1723
1823
1923
2023
2123
2223
2323
2423
2523
2623
2723
2822
2922
3022
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 (%)
16222142
26222142
36322132
46322132
56521122
66521122
76621112
86721102
96721102
10682192
11682192
12682192
13682192
14682192
15682192
16702091
17702091
186920101
197019101
207019101
217118101
227217101
23731791
24741691
25751591
26771481
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
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light 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 8:23 AM to 8:46 AM, and sunset from 7:01 PM to 6:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.68:237:01
210.68:247:00
310.68:256:59
410.58:266:58
510.58:276:57
610.58:276:56
710.58:286:55
810.48:296:54
910.48:306:53
1010.48:316:52
1110.38:316:52
1210.38:326:51
1310.38:336:50
1410.38:346:49
1510.28:356:48
1610.28:356:47
1710.28:366:47
1810.28:376:46
1910.18:386:45
2010.18:386:45
2110.18:396:44
2210.18:406:43
2310.08:416:43
2410.08:416:42
2510.08:426:42
2610.08:436:41
2710.08:436:41
289.98:446:40
299.98:456:40
309.98:456:39
319.98:466:39

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 2.59 kWh/m².

For context, solar energy here swings from a low near 2.18 kWh/m² to a high of 7.39 kWh/m² in December across the year — May's 2.59 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.1Moderate
23.0Moderate
33.0Moderate
43.0Moderate
53.0Moderate
62.9Moderate
72.9Moderate
82.9Moderate
92.8Moderate
102.8Moderate
112.7Moderate
122.7Moderate
132.7Moderate
142.6Moderate
152.6Moderate
162.6Moderate
172.5Moderate
182.5Moderate
192.5Moderate
202.5Moderate
212.4Moderate
222.4Moderate
232.4Moderate
242.4Moderate
252.4Moderate
262.3Moderate
272.3Moderate
282.3Moderate
292.3Moderate
302.3Moderate
312.3Moderate
Planning a trip in May

Is May a good time to visit Canelones?

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

6.4
Sightseeing
7th-best month of the year
2.6
Beach & pool
8th-best month of the year

May is a reasonable time to visit Canelones for sightseeing.

What to pack for Canelones in May

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

In May, Canelones 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 Canelones 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 40 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 Canelones 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 Canelones 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 Canelones?

Canelones sits at 34.5°S, 56.3°W, 29 m above sea level, in Uruguay. The nearest listed city is Santa Lucía, 13 km away.

Barros BlancosPandoPaso de Carrasco

Topography around Canelones

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

Within 3 km, the terrain around Canelones has only modest variations in elevation — a maximum elevation change of 37 m around an average of 21 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 74 m; within 80 km, only modest variations in elevation — a maximum elevation change of 184 m.

The land around Canelones is covered by grassland (47%) and trees (23%) within 3 km, grassland (50%) and cropland (32%) within 16 km, and grassland (38%), water (28%) and cropland (25%) within 80 km.

3 km
37 m
16 km
74 m
80 km
184 m
treesgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Santa Lucía 13 km · Progreso 17 km · Las Piedras 24 km · La Paz 27 km · Delta del Tigre 28 km · Barros Blancos 36 km · Pando 37 km · Paso de Carrasco 43 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 Canelones (-34.5238°, -56.2822°, elevation 29 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).