Luján weather in July

In July, Luján sees average daytime highs of 15°C and overnight lows near 6°C, with 58 mm of rain across 5.8 wet days and about 9.9 hours of daylight. It is the 12th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 15°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 Luján's 10th-clearest and 6th-windiest month. For the whole year in context, see Luján's year-round climate.

Daytime high
15°
12th warmest
Overnight low
1st coldest
Rainfall
58 mm
5.8 wet days
Daylight
9 h 54 min
8:05 AM – 5:59 PM
Cloud cover
56%
10th clearest
Wind
13 km/h
6th windiest
Solar energy
2.47 kWh/m²
Travel score
5.0
out of 10

Luján is city in Buenos Aires Province, Argentina.

Founded
1738

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 15°C through the month.

A typical July day in Luján reaches about 15°C in the afternoon and slips back to 6°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 20°C. Set against its neighbours, July runs on par with June and about 2°C cooler than August.

10°20°151015202531
Avg high (°C)Avg low (°C)
1156
2156
3156
4156
5156
6156
7155
8155
9155
10155
11155
12155
13155
14155
15155
16155
17155
18155
19155
20155
21155
22155
23156
24156
25156
26156
27156
28156
29156
30156
31166

Luján weather by month

How July compares with the rest of the year at a glance. July is the 12th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 18°917.814.15.8
Feb28° / 18°1018.313.36.3
Mar26° / 16°927.312.37.3
Apr23° / 12°968.311.27.2
May19° / 665.910.26.6
Jun16° / 545.89.75.3
Jul15° / 585.89.95.0
Aug17° / 615.510.76.2
Sep19° / 716.511.86.7
Oct22° / 12°1199.312.96.9
Nov25° / 14°948.213.87.2
Dec28° / 17°938.814.36.4

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 14% of July, with mostly cloudy or overcast conditions the remaining 50%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
25050
35050
44951
54852
64951
74951
84951
95050
105050
114951
125050
135050
145050
155050
165149
175149
185149
195149
205149
215149
225149
235149
245149
255050
265050
275050
285050
295050
305050
315050

Chance of precipitation in July

Any precipitation

Luján gets around 58 mm of rain over 5.8 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 18% and peaks near 20% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
119
220
320
420
520
620
720
820
920
1020
1119
1219
1318
1418
1518
1617
1717
1817
1917
2017
2117
2217
2317
2417
2517
2617
2717
2818
2918
3017
3117

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 (%)
19163
29172
39172
49172
59172
69172
79172
89172
99082
109082
119082
129181
139181
149181
159181
169181
179181
189181
199181
209181
219181
229181
239181
249091
259091
269091
279091
289181
299181
309082
319082

Wind in July

Winds average 13 km/h in July.

Across July, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light 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 8:08 AM to 7:56 AM, and sunset from 5:51 PM to 6:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.78:085:51
29.78:085:52
39.78:085:52
49.78:085:52
59.78:085:53
69.88:085:53
79.88:085:54
89.88:085:54
99.88:085:55
109.88:075:55
119.88:075:56
129.88:075:57
139.88:065:57
149.98:065:58
159.98:065:58
169.98:055:59
179.98:056:00
189.98:046:00
1910.08:046:01
2010.08:036:02
2110.08:036:02
2210.08:026:03
2310.08:026:04
2410.18:016:04
2510.18:006:05
2610.18:006:06
2710.17:596:06
2810.17:586:07
2910.27:576:08
3010.27:576:09
3110.27:566:09

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 2.47 kWh/m².

For context, solar energy here swings from a low near 2.26 kWh/m² to a high of 7.44 kWh/m² in December across the year — July's 2.47 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
92.3Moderate
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
252.7Moderate
262.7Moderate
272.7Moderate
282.8Moderate
292.8Moderate
302.8Moderate
312.8Moderate
Planning a trip in July

Is July a good time to visit Luján?

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

5.0
Sightseeing
12th-best month of the year
0.1
Beach & pool
12th-best month of the year

July is a reasonable time to visit Luján for sightseeing.

What to pack for Luján in July

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

In July, Luján sees daytime highs around 15°C and nights near 6°C. Worth packing: a warm layer. About 6 days see rain.

a warm layer

Sea temperature near Luján 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 at the nearest coast (about 68 km away) 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 20 — about 5.4 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan25Warm
Feb25Warm
Mar23Refreshing
Apr21Refreshing
May17Cool
Jun14Bracing
Jul13Bracing
Aug13Bracing
Sep15Cool
Oct18Cool
Nov21Refreshing
Dec23Refreshing

UV index in Luján 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 Luján peaks around January 14 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 14UV 13Jun 19UV 3
UV index (midday)Level
Jan13Extreme
Feb11Extreme
Mar9Very high
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct8Very high
Nov11Extreme
Dec12Extreme

Air quality in Luján 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 Luján is worst in August — around 20 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (November, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModerateGoodAug 1619 µg/m³Nov 2310 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb11Good
Mar12Moderate
Apr11Good
May14Moderate
Jun16Moderate
Jul16Moderate
Aug20Moderate
Sep15Moderate
Oct13Moderate
Nov10Good
Dec11Good
Location & terrain

Where is Luján?

Luján sits at 34.6°S, 59.1°W, 17 m above sea level, in Argentina. The nearest listed city is Pilar, 22 km away.

Topography around Luján

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

Within 3 km, the terrain around Luján has only modest variations in elevation — a maximum elevation change of 25 m around an average of 24 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 62 m; within 80 km, only modest variations in elevation — a maximum elevation change of 83 m.

The land around Luján is covered by artificial surfaces (49%), trees (26%) and grassland (20%) within 3 km, cropland (52%) and grassland (28%) within 16 km, and cropland (42%) and grassland (27%) within 80 km.

3 km
25 m
16 km
62 m
80 km
83 m
treesgrasslandcroplandartificial surfaceswaterwetland
July weather nearby: Pilar 22 km · Mercedes 30 km · Moreno 31 km · José C. Paz 32 km · Tortuguitas 35 km · San Miguel 37 km · Merlo 37 km · Muñiz 37 km

Argentina travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / I
220 V · 50 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$14,898
2025
Happiness
6.4 / 10
World Happiness, 2025
Homicide rate
4.5
per 100k, 2023
Road deaths
14.1
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 575
Religion
Roman Catholic 63%none 19%Evangelical 15%Jehovah's Witness and Church of Jesus 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 Luján (-34.5664°, -59.1148°, elevation 17 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).