La Unión weather in July

In July, La Unión sees average daytime highs of 25°C and overnight lows near 14°C, with 85 mm of rain across 11.8 wet days and about 12.3 hours of daylight. It is the 2nd-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 2% of the time in July, and the air most often feels comfortable.

Daylight stretches from about 12 h 18 min at the start of July to 12 h 18 min by month's end. Set against the rest of the year, July is La Unión's 6th-clearest and 2nd-windiest month. For the whole year in context, see La Unión's year-round climate.

Daytime high
25°
2nd warmest
Overnight low
14°
1st coldest
Rainfall
85 mm
11.8 wet days
Daylight
12 h 18 min
5:58 AM – 6:17 PM
Cloud cover
85%
6th clearest
Wind
5 km/h
2nd windiest
Solar energy
6.09 kWh/m²
Travel score
6.1
out of 10

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 25°C through the month.

A typical July day in La Unión reaches about 25°C in the afternoon and slips back to 14°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 27°C. Set against its neighbours, July runs on par with June and on par with August.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12414
22414
32414
42514
52514
62514
72514
82514
92514
102514
112514
122514
132514
142514
152514
162514
172514
182514
192514
202514
212514
222514
232514
242514
252514
262514
272514
282514
292514
302514
312514

La Unión weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 14°16122.311.74.8
Feb23° / 14°19022.511.84.4
Mar23° / 14°30926.9124.1
Apr23° / 15°35225.512.14.0
May24° / 15°31124.812.34.3
Jun24° / 14°13016.912.35.3
Jul25° / 14°8511.812.36.1
Aug25° / 14°11113.112.25.8
Sep24° / 14°21621.6124.7
Oct23° / 14°3672811.93.8
Nov23° / 14°40228.811.73.6
Dec23° / 14°24324.511.74.4

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 9% of July, with mostly cloudy or overcast conditions the remaining 89%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1991
2991
3991
4991
5991
6991
7991
8991
9991
10991
11991
12991
13991
14991
151090
161090
171090
181090
191189
201189
211189
221189
231288
241288
251288
261387
271387
281387
291387
301387
311387

Chance of precipitation in July

Any precipitation

La Unión gets around 85 mm of rain over 11.8 wet days in July, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 38% and peaks near 49% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
149
249
348
447
546
646
745
844
943
1043
1142
1241
1340
1439
1538
1637
1736
1835
1935
2034
2134
2233
2332
2432
2531
2631
2731
2831
2930
3030
3131

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the comfortable band about 55% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
1236710
224679
325669
426659
527658
628648
729638
831618
932617
1033607
1134597
1235587
1337567
1438566
1539556
1640546
1741536
1842535
1942535
2043525
2144515
2245514
2346504
2447494
2547484
2648484
2749474
2850464
2950464
3050464
3151454

Wind in July

Winds average 5 km/h in July.

Across July, daily wind ranges from about 4 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 12 h 18 min at the start of July to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over July. Sunrise moves from 5:55 AM to 6:00 AM, and sunset from 6:15 PM to 6:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:556:15
212.35:556:15
312.35:556:15
412.35:556:16
512.35:556:16
612.35:566:16
712.35:566:16
812.35:566:16
912.35:566:16
1012.35:566:16
1112.35:576:16
1212.35:576:16
1312.35:576:16
1412.35:576:16
1512.35:576:17
1612.35:586:17
1712.35:586:17
1812.35:586:17
1912.35:586:17
2012.35:586:17
2112.35:586:17
2212.35:596:16
2312.35:596:16
2412.35:596:16
2512.35:596:16
2612.35:596:16
2712.35:596:16
2812.35:596:16
2912.35:596:16
3012.35:596:16
3112.36:006:16

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.09 kWh/m².

For context, solar energy here swings from a low near 4.3 kWh/m² to a high of 6.22 kWh/m² in August across the year — July's 6.09 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
55.9Bright
66.0Bright
76.0Bright
86.0Bright
96.0Intense
106.0Intense
116.0Intense
126.0Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.1Intense
186.1Intense
196.1Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
316.3Intense
Planning a trip in July

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).

6.1
Sightseeing
1st-best month of the year
5.5
Beach & pool
1st-best month of the year

July is a reasonable time to visit La Unión for sightseeing.

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 25°C and nights near 14°C. Pack sun protection. Worth having: light clothes and rain gear. About 12 days see rain.

sun protectionlight clothesrain gear

UV index in La Unión in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in La Unión peaks around February 21 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 12 (extreme).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 21UV 16Dec 13UV 12
UV index (midday)Level
Jan13Extreme
Feb16Extreme
Mar16Extreme
Apr12Extreme
May14Extreme
Jun12Extreme
Jul13Extreme
Aug13Extreme
Sep14Extreme
Oct14Extreme
Nov12Extreme
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 33 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (October, 17 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1631 µg/m³Oct 2217 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb25Moderate
Mar33Moderate
Apr24Moderate
May20Moderate
Jun18Moderate
Jul18Moderate
Aug21Moderate
Sep18Moderate
Oct17Moderate
Nov17Moderate
Dec18Moderate
Location & terrain

Where is La Unión?

La Unión sits at 6.0°N, 75.4°W, 2,475 m above sea level, in Colombia. The nearest listed city is La Ceja, 10 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 significant variations in elevation — a maximum elevation change of 274 m around an average of 2,485 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,898 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,673 m.

The land around La Unión is covered by grassland (68%) and trees (23%) within 3 km, trees (56%) and grassland (41%) within 16 km, and trees (66%) and grassland (33%) within 80 km.

3 km
274 m
16 km
1,898 m
80 km
3,673 m
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: La Ceja 10 km · Carmen de Viboral 12 km · Retiro 18 km · Rionegro 20 km · Santuario 21 km · Abejorral 22 km · Marinilla 22 km · Sonsón 30 km

Colombia travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B
120 / 240 V · 60 Hz
Prices
≈ 38% of US
price level, 2025
GDP per capita
$8,562
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
74%
of population, 2024
Homicide rate
24.9
per 100k, 2023
Road deaths
15.4
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 480
Religion
Roman Catholic 64%Protestant 17%none 14%atheist 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 (5.9743°, -75.3619°, elevation 2,475 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. 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).