Colonia del Sacramento weather in July

In July, Colonia del Sacramento sees average daytime highs of 13°C and overnight lows near 8°C, with 74 mm of rain across 6.8 wet days and about 9.9 hours of daylight. It is the 12th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 13°C through the month. The sky is clear or mostly clear about 37% of the time in July, and the air most often feels dry.

Daylight stretches from about 9 h 42 min at the start of July to 10 h 12 min by month's end. Set against the rest of the year, July is Colonia del Sacramento's 10th-clearest and 5th-windiest month. For the whole year in context, see Colonia del Sacramento's year-round climate.

Daytime high
13°
12th warmest
Overnight low
1st coldest
Rainfall
74 mm
6.8 wet days
Daylight
9 h 54 min
9:00 AM – 6:54 PM
Cloud cover
56%
10th clearest
Wind
17 km/h
5th windiest
Solar energy
2.46 kWh/m²
Travel score
4.1
out of 10

Colonia del Sacramento is City in Uruguay, departmental capital of Colonia.

Density
1,407/km²
people per km²
Founded
1680

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 13°C through the month.

A typical July day in Colonia del Sacramento reaches about 13°C in the afternoon and slips back to 8°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 17°C. Set against its neighbours, July runs about 1°C cooler than June and about 2°C cooler than August.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
1139
2139
3139
4139
5139
6139
7138
8138
9138
10138
11138
12138
13138
14138
15138
16138
17138
18138
19138
20138
21138
22138
23138
24138
25139
26149
27149
28149
29149
30149
31149

Colonia del Sacramento weather by month

How July compares with the rest of the year at a glance. July is the 12th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 21°816.9147.3
Feb26° / 20°1038.113.37.1
Mar24° / 19°1017.612.37.5
Apr21° / 15°977.911.26.9
May17° / 12°706.610.26.0
Jun14° / 10°717.29.74.5
Jul13° / 746.89.94.1
Aug15° / 10°756.710.75.1
Sep17° / 12°817.611.85.8
Oct20° / 14°1119.412.96.5
Nov23° / 17°1027.913.87.3
Dec26° / 19°847.714.37.4

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 11% of July, with mostly cloudy or overcast conditions the remaining 53%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24852
34753
44753
54753
64753
74852
84951
94951
104951
114951
124951
135050
145050
154951
164951
174951
184951
194852
204852
214852
224852
234753
244753
254654
264555
274555
284555
294555
304555
314654

Chance of precipitation in July

Any precipitation

Colonia del Sacramento gets around 74 mm of rain over 6.8 wet days in July. 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
523
623
723
823
923
1023
1123
1223
1323
1423
1523
1622
1722
1822
1922
2022
2122
2222
2321
2421
2521
2621
2721
2821
2921
3021
3120

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the dry band about 91% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19181
29181
39091
49091
59091
69091
79091
89091
99091
109091
119091
129091
139181
149181
159181
169280
179280
189370
199370
209370
219370
229280
239280
249280
259181
269181
279181
289091
299091
309091
319091

Wind in July

Winds average 17 km/h in July.

Across July, daily wind ranges from about 16 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 9 h 42 min at the start of July to 10 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over July. Sunrise moves from 9:03 AM to 8:50 AM, and sunset from 6:46 PM to 7:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.79:036:46
29.79:036:47
39.79:036:47
49.79:036:48
59.89:036:48
69.89:036:48
79.89:036:49
89.89:026:49
99.89:026:50
109.89:026:51
119.89:026:51
129.89:016:52
139.99:016:52
149.99:016:53
159.99:006:53
169.99:006:54
179.98:596:55
189.98:596:55
1910.08:586:56
2010.08:586:57
2110.08:576:57
2210.08:576:58
2310.08:566:59
2410.18:566:59
2510.18:557:00
2610.18:547:01
2710.18:547:02
2810.28:537:02
2910.28:527:03
3010.28:517:04
3110.28:507:04

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 2.46 kWh/m².

For context, solar energy here swings from a low near 2.29 kWh/m² to a high of 7.57 kWh/m² in December across the year — July's 2.46 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.3Moderate
22.3Moderate
32.3Moderate
42.3Moderate
52.3Moderate
62.3Moderate
72.3Moderate
82.3Moderate
92.4Moderate
102.4Moderate
112.4Moderate
122.4Moderate
132.4Moderate
142.4Moderate
152.5Moderate
162.5Moderate
172.5Moderate
182.5Moderate
192.5Moderate
202.5Moderate
212.6Moderate
222.6Moderate
232.6Moderate
242.6Moderate
252.6Moderate
262.7Moderate
272.7Moderate
282.7Moderate
292.8Moderate
302.8Moderate
312.8Moderate
Planning a trip in July

Is July a good time to visit Colonia del Sacramento?

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

4.1
Sightseeing
12th-best month of the year
0.0
Beach & pool
12th-best month of the year

July is a reasonable time to visit Colonia del Sacramento for sightseeing.

What to pack for Colonia del Sacramento in July

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

In July, Colonia del Sacramento sees daytime highs around 13°C and nights near 8°C. Worth packing: a warm layer. About 7 days see rain.

a warm layer

Sea temperature near Colonia del Sacramento in July

The nearest coast averages about 13°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in January at about 25°C and coldest in July near 13°C.

It's comfortable for a long swim from Nov 9 to Apr 19 — about 5.3 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan25Warm
Feb25Warm
Mar23Refreshing
Apr20Refreshing
May17Cool
Jun14Bracing
Jul13Bracing
Aug13Bracing
Sep15Bracing
Oct18Cool
Nov21Refreshing
Dec23Refreshing

UV index in Colonia del Sacramento in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July 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 Colonia del Sacramento peaks around January 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 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 15UV 13Jun 19UV 3
UV index (midday)Level
Jan13Extreme
Feb11Extreme
Mar10Very high
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct8Very high
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Colonia del Sacramento?

Colonia del Sacramento sits at 34.5°S, 57.8°W, 30 m above sea level, in Uruguay. The nearest listed city is Ensenada, 45 km away.

EnsenadaBerissoQuilmesBerazateguiRetiroBuenos AiresLa PlataSarandí

Topography around Colonia del Sacramento

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

Within 3 km, the terrain around Colonia del Sacramento has only modest variations in elevation — a maximum elevation change of 48 m around an average of 7 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 87 m; within 80 km, only modest variations in elevation — a maximum elevation change of 189 m.

The land around Colonia del Sacramento is covered by water (49%) within 3 km, water (65%) within 16 km, and water (37%), grassland (23%) and cropland (23%) within 80 km.

3 km
48 m
16 km
87 m
80 km
189 m
treesgrasslandcroplandartificial surfaceswaterwetland
July weather nearby: Ensenada 45 km · Berisso 46 km · Quilmes 48 km · Berazategui 48 km · Retiro 52 km · Buenos Aires 52 km · La Plata 52 km · Sarandí 52 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 Colonia del Sacramento (-34.4626°, -57.8398°, elevation 30 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).