La Unión weather in July

In July, La Unión sees average daytime highs of 10°C and overnight lows near 4°C, with 229 mm of precipitation across 17.8 wet days and about 9.4 hours of daylight. It is the 12th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 10°C through the month. The sky is clear or mostly clear about 11% of the time in July, and the air most often feels dry.

Daylight stretches from about 9 h 12 min at the start of July to 9 h 48 min by month's end. Set against the rest of the year, July is La Unión's 11th-clearest and 7th-windiest month. For the whole year in context, see La Unión's year-round climate.

Daytime high
10°
12th warmest
Overnight low
1st coldest
Precipitation
229 mm
17.8 wet days
Daylight
9 h 24 min
9:16 AM – 6:40 PM
Cloud cover
75%
11th clearest
Wind
10 km/h
7th windiest
Solar energy
1.53 kWh/m²
Travel score
1.9
out of 10

La Unión is city in Chile.

Air quality
High
PM2.5 29.9 µg/m³ · 2019
Density
12/km²
people per km²
Founded
1821

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 10°C through the month.

A typical July day in La Unión reaches about 10°C in the afternoon and slips back to 4°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 7°C and 13°C. Set against its neighbours, July runs on par with June and about 1°C cooler than August.

-5°10°15°151015202531
Avg high (°C)Avg low (°C)
1104
2104
3104
4104
5104
6104
7104
8104
9104
10104
11104
12103
13103
14103
15103
16103
17103
18103
19103
20103
21103
22103
23103
24103
25103
26103
27103
28103
29103
30103
31103

La Unión weather by month

How July compares with the rest of the year at a glance. July is the 12th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan22° / 10°36614.57.5
Feb22° / 10°415.113.67.6
Mar20° / 637.612.36.7
Apr16° / 10910.6114.9
May13° / 18915.49.83.1
Jun11° / 25418.39.22.0
Jul10° / 22917.89.41.9
Aug11° / 21017.810.42.3
Sep13° / 12513.511.73.4
Oct15° / 11013.413.14.3
Nov17° / 749.914.25.5
Dec20° / 64814.86.6

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 15% of July, with mostly cloudy or overcast conditions the remaining 74%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12377
22377
32476
42476
52476
62575
72575
82575
92674
102674
112773
122773
132773
142773
152872
162773
172773
182773
192773
202674
212674
222674
232674
242773
252773
262773
272773
282773
292773
302674
312674

Chance of precipitation in July

Any precipitation

La Unión gets around 229 mm of rain and snow over 17.8 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 58% and peaks near 60% on the wettest days, and about 0 day brings snow.

0%20%40%60%151015202531
Rain chance (%)
160
260
360
460
560
660
760
859
959
1058
1158
1258
1357
1457
1557
1657
1757
1857
1957
2057
2156
2256
2356
2456
2556
2657
2757
2857
2957
3057
3157

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in July

Winds average 10 km/h in July.

Across July, daily wind ranges from about 10 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 9 h 12 min at the start of July to 9 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over July. Sunrise moves from 9:21 AM to 9:04 AM, and sunset from 6:30 PM to 6:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.29:216:30
29.29:216:31
39.29:216:31
49.29:216:32
59.29:206:32
69.29:206:33
79.29:206:34
89.29:206:34
99.39:196:35
109.39:196:35
119.39:196:36
129.39:186:37
139.39:186:37
149.39:176:38
159.49:176:39
169.49:166:40
179.49:166:40
189.49:156:41
199.59:146:42
209.59:146:43
219.59:136:44
229.59:126:45
239.69:116:45
249.69:116:46
259.69:106:47
269.79:096:48
279.79:086:49
289.79:076:50
299.79:066:51
309.89:056:52
319.89:046:53

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 1.53 kWh/m².

For context, solar energy here swings from a low near 1.28 kWh/m² to a high of 7.12 kWh/m² in January across the year — July's 1.53 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.3Dim
21.3Dim
31.3Dim
41.3Dim
51.3Dim
61.4Dim
71.4Dim
81.4Dim
91.4Dim
101.4Dim
111.4Dim
121.5Dim
131.5Dim
141.5Dim
151.5Dim
161.5Dim
171.5Dim
181.6Dim
191.6Dim
201.6Dim
211.6Dim
221.6Dim
231.6Dim
241.7Dim
251.7Dim
261.7Dim
271.7Dim
281.8Dim
291.8Dim
301.8Dim
311.8Dim
Planning a trip in July

Hazard calendar for La Unión

In seasonPeak

In July, La Unión sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

La Unión's rainy season runs May–September, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is July a good time to visit La Unión?

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

1.9
Sightseeing
12th-best month of the year
0.0
Beach & pool
10th-best month of the year

July is a weaker month for outdoor sightseeing in La Unión.

What to pack for La Unión in July

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

In July, La Unión sees daytime highs around 10°C and nights near 4°C. Pack a warm layer and rain gear. About 18 days see rain.

a warm layerrain gear

Sea temperature near La Unión in July

The nearest coast averages about 11°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 66 km away) is warmest in January at about 14°C and coldest in August near 11°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

10°12°14°16°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan14Bracing
Feb14Bracing
Mar14Bracing
Apr13Bracing
May13Bracing
Jun12Bracing
Jul11Bracing
Aug11Bracing
Sep11Bracing
Oct12Bracing
Nov13Bracing
Dec14Bracing

UV index in La Unión in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in La Unión peaks around December 20 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateLowModerateVery highExtremeDec 20UV 12Jun 18UV 2
UV index (midday)Level
Jan11Extreme
Feb11Extreme
Mar7Very high
Apr5Moderate
May2Moderate
Jun2Low
Jul2Low
Aug3Moderate
Sep4Moderate
Oct7High
Nov9Very high
Dec12Extreme

Air quality in La Unión in July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.

Air quality in La Unión is worst in March — around 36 µg/m³ PM2.5 (poor), about 1.7× the cleanest month (February, 22 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to La Unión's WHO annual average of 29.9 µg/m³.

010203040JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateModerateMar 2436 µg/m³Feb 922 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb22Moderate
Mar36Poor
Apr36Poor
May28Moderate
Jun26Moderate
Jul27Moderate
Aug33Moderate
Sep36Poor
Oct33Moderate
Nov31Moderate
Dec27Moderate
Location & terrain

Where is La Unión?

La Unión sits at 40.3°S, 73.1°W, 32 m above sea level, in Chile. The nearest listed city is Río Bueno, 12 km away.

Topography around La Unión

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

Within 3 km, the terrain around La Unión has only modest variations in elevation — a maximum elevation change of 80 m around an average of 49 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 528 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,782 m.

The land around La Unión is covered by cropland (41%), trees (25%) and grassland (20%) within 3 km, trees (44%), cropland (29%) and grassland (25%) within 16 km, and trees (51%) and grassland (21%) within 80 km.

3 km
80 m
16 km
528 m
80 km
1,782 m
treesgrasslandcroplandartificial surfaceswater
July weather nearby: Río Bueno 12 km · Paillaco 30 km · Osorno 32 km · Valdivia 55 km · Las Animas 55 km · Purranque 69 km · Frutillar 92 km · Panguipulli 96 km

Chile travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F / L
220 V · 50 Hz
Prices
≈ 48% of US
price level, 2025
GDP per capita
$17,995
2025
Happiness
6.3 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
6.3
per 100k, 2023
Road deaths
14.9
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 517
Religion
Catholic 57%none 26%Evangelical or Protestant 16%other Christians and traditions related to Christ 1%

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 La Unión (-40.2931°, -73.0817°, elevation 32 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).