Piriapolis weather in August

In August, Piriapolis sees average daytime highs of 16°C and overnight lows near 9°C, with 93 mm of rain across 8.6 wet days and about 10.7 hours of daylight. It is the 10th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 16°C through the month. The sky is clear or mostly clear about 31% of the time in August, and the air most often feels dry.

Daylight stretches from about 10 h 12 min at the start of August to 11 h 12 min by month's end. Set against the rest of the year, August is Piriapolis's 8th-clearest and 5th-windiest month. For the whole year in context, see Piriapolis's year-round climate.

Daytime high
16°
10th warmest
Overnight low
3rd coldest
Rainfall
93 mm
8.6 wet days
Daylight
10 h 42 min
8:25 AM – 7:06 PM
Cloud cover
60%
8th clearest
Wind
16 km/h
5th windiest
Solar energy
3.14 kWh/m²
Travel score
5.1
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 August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 16°C through the month.

A typical August day in Piriapolis reaches about 16°C in the afternoon and slips back to 9°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 21°C. Set against its neighbours, August runs about 2°C warmer than July and about 1°C cooler than September.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1158
2158
3158
4158
5158
6158
7158
8158
9158
10158
11168
12168
13168
14169
15169
16169
17169
18169
19169
20169
21169
22169
23169
24169
25169
26169
27169
28169
29169
30169
31169

Piriapolis weather by month

How August compares with the rest of the year at a glance. August is the 10th-warmest and 5th-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 August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 13% of August, with mostly cloudy or overcast conditions the remaining 56%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14060
24060
34159
44258
54258
64357
74555
84555
94654
104654
114654
124654
134753
144753
154753
164753
174753
184654
194654
204654
214555
224555
234555
244456
254456
264456
274357
284357
294357
304357
314357

Chance of precipitation in August

Any precipitation

Piriapolis gets around 93 mm of rain over 8.6 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 28% and peaks near 29% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
128
228
328
428
528
628
728
828
928
1029
1129
1229
1328
1428
1528
1628
1728
1828
1928
2028
2128
2228
2328
2427
2527
2627
2727
2827
2928
3028
3128

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the dry band about 85% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1881020
2881020
3881020
4881020
5881020
6881020
7881020
8881020
9881020
10881020
11881020
12871120
13861130
14861130
15861130
16851230
17851230
18831340
19831340
20831340
21821440
22821440
23821440
24811441
25811441
26811441
27811441
28811441
29811441
30821431
31821431

Wind in August

Winds average 16 km/h in August.

Across August, daily wind ranges from about 15 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 10 h 12 min at the start of August to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over August. Sunrise moves from 8:40 AM to 8:05 AM, and sunset from 6:54 PM to 7:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.28:406:54
210.38:396:55
310.38:386:56
410.38:386:56
510.38:376:57
610.48:366:58
710.48:356:59
810.48:346:59
910.58:337:00
1010.58:327:01
1110.58:307:02
1210.68:297:03
1310.68:287:03
1410.68:277:04
1510.68:267:05
1610.78:257:06
1710.78:247:06
1810.78:227:07
1910.88:217:08
2010.88:207:09
2110.88:197:09
2210.98:177:10
2310.98:167:11
2410.98:157:12
2511.08:137:12
2611.08:127:13
2711.18:117:14
2811.18:097:15
2911.18:087:16
3011.28:077:16
3111.28:057:17

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.14 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 — August's 3.14 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
12.6Moderate
22.7Moderate
32.7Moderate
42.8Moderate
52.8Moderate
62.8Moderate
72.9Moderate
82.9Moderate
92.9Moderate
103.0Moderate
113.0Moderate
123.1Moderate
133.1Moderate
143.1Moderate
153.1Moderate
163.2Moderate
173.2Moderate
183.2Moderate
193.3Moderate
203.3Moderate
213.3Moderate
223.3Moderate
233.3Moderate
243.4Moderate
253.4Moderate
263.4Moderate
273.4Moderate
283.5Moderate
293.5Moderate
303.5Moderate
313.5Moderate
Planning a trip in August

Is August a good time to visit Piriapolis?

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

5.1
Sightseeing
10th-best month of the year
0.5
Beach & pool
10th-best month of the year

August is a reasonable time to visit Piriapolis for sightseeing.

What to pack for Piriapolis in August

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

In August, Piriapolis sees daytime highs around 16°C and nights near 9°C. Worth packing: a warm layer and rain gear. About 9 days see rain.

a warm layerrain gear

Sea temperature near Piriapolis in August

The nearest coast averages about 12°C in August — 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 August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 4 — 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
August 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).