Piriapolis weather in May

In May, Piriapolis sees average daytime highs of 18°C and overnight lows near 11°C, with 76 mm of rain across 7.9 wet days and about 10.2 hours of daylight. It is the 8th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 19°C in the first days to 16°C by the end. The sky is clear or mostly clear about 28% 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 Piriapolis's 12th-clearest and 12th-windiest month. For the whole year in context, see Piriapolis's year-round climate.

Daytime high
18°
8th warmest
Overnight low
11°
5th coldest
Rainfall
76 mm
7.9 wet days
Daylight
10 h 12 min
8:32 AM – 6:43 PM
Cloud cover
61%
12th clearest
Wind
14 km/h
12th windiest
Solar energy
2.54 kWh/m²
Travel score
6.0
out of 10

Piriapolis is city of Uruguay.

Density
319/km²
people per km²
Founded
1893

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 19°C in the first days to 16°C by the end.

A typical May day in Piriapolis reaches about 18°C in the afternoon and slips back to 11°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 22°C. Set against its neighbours, May runs about 3°C cooler than April and about 3°C warmer than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11912
21912
31912
41912
51912
61912
71912
81912
91912
101912
111812
121812
131811
141811
151811
161811
171811
181811
191811
201711
211711
221711
231711
241711
251710
261710
271710
281610
291610
301610
311610

Piriapolis weather by month

How May compares with the rest of the year at a glance. May is the 8th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 18°707.614.17.2
Feb26° / 18°978.913.36.9
Mar24° / 17°95912.37.2
Apr21° / 14°998.611.16.8
May18° / 11°767.910.26.0
Jun15° / 898.39.74.7
Jul14° / 908.79.94.3
Aug16° / 938.610.75.1
Sep17° / 10°918.311.85.6
Oct20° / 12°999.412.96.3
Nov22° / 14°857.813.87.2
Dec25° / 16°808.514.37.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 55%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
25149
35149
45149
55050
65050
75050
84951
94951
104753
114753
124753
134654
144456
154357
164357
174258
184258
194159
204159
214060
224159
234159
244060
254159
264159
274159
284258
294258
304258
314258

Chance of precipitation in May

Any precipitation

Piriapolis gets around 76 mm of rain over 7.9 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 25% and peaks near 27% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
126
225
325
425
524
624
724
823
923
1023
1123
1224
1324
1424
1525
1625
1725
1826
1926
2026
2126
2226
2327
2427
2527
2627
2727
2826
2926
3025
3125

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 69% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
16125122
26125122
36225112
46424111
56524101
66524101
76524101
8662491
9662491
10662491
11662491
12672391
13682390
14682390
15682390
16682390
176723100
186822100
196822100
20702190
21702190
22712090
23721990
24741880
25751780
26761680
27781570
28781570
29801460
30811360
31831250

Wind in May

Winds average 14 km/h in May, the calmest month.

Across May, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light 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 8:20 AM to 8:43 AM, and sunset from 6:57 PM to 6:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.68:206:57
210.68:216:56
310.68:216:55
410.58:226:54
510.58:236:53
610.58:246:52
710.48:256:51
810.48:266:50
910.48:266:49
1010.38:276:48
1110.38:286:47
1210.38:296:46
1310.38:306:45
1410.28:306:44
1510.28:316:43
1610.28:326:43
1710.28:336:42
1810.18:346:41
1910.18:346:41
2010.18:356:40
2110.18:366:39
2210.08:376:39
2310.08:376:38
2410.08:386:37
2510.08:396:37
269.98:396:36
279.98:406:36
289.98:416:35
299.98:426:35
309.98:426:34
319.98:436:34

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 2.54 kWh/m².

For context, solar energy here swings from a low near 2.15 kWh/m² to a high of 7.32 kWh/m² in December across the year — May's 2.54 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.0Moderate
23.0Moderate
33.0Moderate
42.9Moderate
52.9Moderate
62.9Moderate
72.8Moderate
82.8Moderate
92.8Moderate
102.7Moderate
112.7Moderate
122.6Moderate
132.6Moderate
142.6Moderate
152.5Moderate
162.5Moderate
172.5Moderate
182.5Moderate
192.4Moderate
202.4Moderate
212.4Moderate
222.4Moderate
232.3Moderate
242.3Moderate
252.3Moderate
262.3Moderate
272.3Moderate
282.3Moderate
292.3Moderate
302.3Moderate
312.3Moderate
Planning a trip in May

Is May a good time to visit Piriapolis?

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

6.0
Sightseeing
8th-best month of the year
1.9
Beach & pool
8th-best month of the year

May is a reasonable time to visit Piriapolis for sightseeing.

What to pack for Piriapolis in May

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

In May, Piriapolis sees daytime highs around 18°C and nights near 11°C. Little to plan around — just the basics. About 8 days see rain.

Sea temperature near Piriapolis in May

The nearest coast averages about 17°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in February at about 23°C and coldest in July near 11°C.

It's comfortable for a long swim from Dec 9 to Apr 10 — about 4 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan22Refreshing
Feb23Refreshing
Mar22Refreshing
Apr20Cool
May17Cool
Jun13Bracing
Jul11Bracing
Aug12Bracing
Sep13Bracing
Oct16Cool
Nov18Cool
Dec21Refreshing

UV index in Piriapolis 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 Piriapolis peaks around January 16 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 16UV 12Jun 18UV 2
UV index (midday)Level
Jan12Extreme
Feb12Extreme
Mar10Very high
Apr6High
May3Moderate
Jun2Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct8Very high
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Piriapolis?

Piriapolis sits at 34.9°S, 55.3°W, 0 m above sea level, in Uruguay. The nearest listed city is Maldonado, 30 km away.

MaldonadoPunta del EsteSan CarlosMinasPandoBarros BlancosPaso de CarrascoMontevideo

Topography around Piriapolis

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

Within 3 km, the terrain around Piriapolis has only modest variations in elevation — a maximum elevation change of 249 m around an average of 32 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 501 m; within 80 km, significant variations in elevation — a maximum elevation change of 494 m.

The land around Piriapolis is covered by trees (31%), water (28%) and grassland (21%) within 3 km, water (55%) and grassland (24%) within 16 km, and grassland (42%) and water (38%) within 80 km.

3 km
249 m
16 km
501 m
80 km
494 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Maldonado 30 km · Punta del Este 32 km · San Carlos 34 km · Minas 54 km · Pando 65 km · Barros Blancos 68 km · Paso de Carrasco 71 km · Montevideo 83 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 Piriapolis (-34.8629°, -55.2747°, elevation 0 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).