San Luis weather in July

In July, San Luis sees average daytime highs of 16°C and overnight lows near 4°C, with 9 mm of precipitation across 2.1 wet days and about 10 hours of daylight. It is the 12th-warmest and 11th-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 60% of the time in July, and the air most often feels dry.

Daylight stretches from about 9 h 48 min at the start of July to 10 h 18 min by month's end. Set against the rest of the year, July is San Luis's 2nd-clearest and 9th-windiest month. For the whole year in context, see San Luis's year-round climate.

Daytime high: 16°; 12th warmest
Overnight low: 4°; 1st coldest
Precipitation: 9 mm; 2.1 wet days
Daylight: 10 hours; 8:31 AM – 6:31 PM
Cloud cover: 36%; 2nd clearest
Wind: 10 km/h; 9th windiest
Solar energy: 3.12 kWh/m²
Travel score: 6.1; out of 10

San Luis is capital city of the San Luis Province in the Cuyo region of Argentina.

Founded: 1594

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

← June San Luis year-round climate August →Best places to visit in July

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

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

A typical July day in San Luis reaches about 16°C in the afternoon and slips back to 4°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 22°C. Set against its neighbours, July runs on par with June and about 3°C cooler than August.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	16	16	16	16	16	15	15	15	15	15	15	15	15	15	15	15	16	16	16	16	16	16	16	16	16	16	16	16	16	17	17
Avg low (°C)	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4

	Avg high (°C)	Avg low (°C)
1	16	4
2	16	4
3	16	4
4	16	4
5	16	4
6	15	4
7	15	4
8	15	4
9	15	4
10	15	4
11	15	4
12	15	4
13	15	4
14	15	4
15	15	4
16	15	4
17	16	4
18	16	4
19	16	4
20	16	4
21	16	4
22	16	4
23	16	4
24	16	4
25	16	4
26	16	4
27	16	4
28	16	4
29	16	4
30	17	4
31	17	4

San Luis 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.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	29° / 18°	107	13.3	14	5.3
Feb	28° / 17°	81	10.9	13.2	6.3
Mar	26° / 15°	80	10.1	12.3	7.1
Apr	22° / 11°	53	7	11.2	7.4
May	18° / 8°	25	4.2	10.3	6.8
Jun	16° / 5°	8	1.9	9.8	6.3
Jul	16° / 4°	9	2.1	10	6.1
Aug	18° / 6°	15	2.6	10.8	7.4
Sep	21° / 9°	30	4.6	11.8	7.6
Oct	24° / 12°	66	8.7	12.8	7.5
Nov	26° / 14°	89	11.7	13.7	6.7
Dec	28° / 17°	102	13.1	14.2	5.8

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 60% 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 25%. Skies tend to open up as the month goes on.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	72	72	72	72	72	72	72	72	73	74	73	73	73	74	74	74	74	76	76	77	77	77	77	77	77	77	77	77	77	78	78
Cloudier (%)	28	28	28	28	28	28	28	28	27	26	27	27	27	26	26	26	26	24	24	23	23	23	23	23	23	23	23	23	23	22	22

	Clearer (%)	Cloudier (%)
1	72	28
2	72	28
3	72	28
4	72	28
5	72	28
6	72	28
7	72	28
8	72	28
9	73	27
10	74	26
11	73	27
12	73	27
13	73	27
14	74	26
15	74	26
16	74	26
17	74	26
18	76	24
19	76	24
20	77	23
21	77	23
22	77	23
23	77	23
24	77	23
25	77	23
26	77	23
27	77	23
28	77	23
29	77	23
30	78	22
31	78	22

Chance of precipitation in July

Any precipitationSnow

San Luis gets around 9 mm of rain and snow over 2.1 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 7% and peaks near 8% on the wettest days, and about 0 day brings snow.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	6	6	6	7	7	7	7	7	7	7	8	8	8	7	7	7	7	7	7	7	7	7	6	6	6	7	7	7	7	7	7
Snow chance (%)	1	1	1	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	1	1	1	1	1	1	1	1	1	1	1	1	1

	Rain chance (%)	Snow chance (%)
1	6	1
2	6	1
3	6	1
4	7	2
5	7	2
6	7	2
7	7	2
8	7	2
9	7	2
10	7	2
11	8	2
12	8	2
13	8	2
14	7	2
15	7	2
16	7	2
17	7	2
18	7	2
19	7	1
20	7	1
21	7	1
22	7	1
23	6	1
24	6	1
25	6	1
26	7	1
27	7	1
28	7	1
29	7	1
30	7	1
31	7	1

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.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

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 11 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	11
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	10	calm
2	10	calm
3	10	calm
4	10	calm
5	10	calm
6	10	calm
7	10	calm
8	10	calm
9	10	calm
10	10	calm
11	10	calm
12	10	calm
13	10	calm
14	10	calm
15	10	calm
16	10	calm
17	10	calm
18	10	calm
19	10	calm
20	10	calm
21	10	calm
22	10	calm
23	10	calm
24	10	calm
25	10	calm
26	10	calm
27	10	calm
28	10	calm
29	10	calm
30	10	calm
31	11	calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 9 h 48 min at the start of July to 10 h 18 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 8:34 AM to 8:22 AM, and sunset from 6:23 PM to 6:41 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	9.8	9.8	9.8	9.8	9.9	9.9	9.9	9.9	9.9	9.9	9.9	9.9	9.9	10.0	10.0	10.0	10.0	10.0	10.0	10.1	10.1	10.1	10.1	10.1	10.2	10.2	10.2	10.2	10.3	10.3	10.3
Sunrise (AM)	8:34	8:34	8:34	8:34	8:34	8:34	8:34	8:33	8:33	8:33	8:33	8:32	8:32	8:32	8:31	8:31	8:31	8:30	8:30	8:29	8:29	8:28	8:28	8:27	8:26	8:26	8:25	8:24	8:24	8:23	8:22
Sunset (PM)	6:23	6:24	6:24	6:25	6:25	6:25	6:26	6:26	6:27	6:27	6:28	6:28	6:29	6:30	6:30	6:31	6:31	6:32	6:33	6:33	6:34	6:35	6:35	6:36	6:37	6:37	6:38	6:39	6:39	6:40	6:41

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	9.8	8:34	6:23
2	9.8	8:34	6:24
3	9.8	8:34	6:24
4	9.8	8:34	6:25
5	9.9	8:34	6:25
6	9.9	8:34	6:25
7	9.9	8:34	6:26
8	9.9	8:33	6:26
9	9.9	8:33	6:27
10	9.9	8:33	6:27
11	9.9	8:33	6:28
12	9.9	8:32	6:28
13	9.9	8:32	6:29
14	10.0	8:32	6:30
15	10.0	8:31	6:30
16	10.0	8:31	6:31
17	10.0	8:31	6:31
18	10.0	8:30	6:32
19	10.0	8:30	6:33
20	10.1	8:29	6:33
21	10.1	8:29	6:34
22	10.1	8:28	6:35
23	10.1	8:28	6:35
24	10.1	8:27	6:36
25	10.2	8:26	6:37
26	10.2	8:26	6:37
27	10.2	8:25	6:38
28	10.2	8:24	6:39
29	10.3	8:24	6:39
30	10.3	8:23	6:40
31	10.3	8:22	6:41

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 3.12 kWh/m².

For context, solar energy here swings from a low near 2.78 kWh/m² to a high of 7.59 kWh/m² in December across the year — July's 3.12 kWh/m² sits near the bottom.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	2.8	2.8	2.9	2.9	2.9	2.9	2.9	2.9	2.9	3.0	3.0	3.0	3.0	3.0	3.1	3.1	3.1	3.2	3.2	3.2	3.2	3.3	3.3	3.3	3.4	3.4	3.4	3.4	3.5	3.5	3.5
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	2.8	Moderate
2	2.8	Moderate
3	2.9	Moderate
4	2.9	Moderate
5	2.9	Moderate
6	2.9	Moderate
7	2.9	Moderate
8	2.9	Moderate
9	2.9	Moderate
10	3.0	Moderate
11	3.0	Moderate
12	3.0	Moderate
13	3.0	Moderate
14	3.0	Moderate
15	3.1	Moderate
16	3.1	Moderate
17	3.1	Moderate
18	3.2	Moderate
19	3.2	Moderate
20	3.2	Moderate
21	3.2	Moderate
22	3.3	Moderate
23	3.3	Moderate
24	3.3	Moderate
25	3.4	Moderate
26	3.4	Moderate
27	3.4	Moderate
28	3.4	Moderate
29	3.5	Moderate
30	3.5	Moderate
31	3.5	Moderate

Planning a trip in July

Hazard calendar for San Luis

In seasonPeak

None of San Luis's seasonal hazards are active in July. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

San Luis's rainy season runs October–April, 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 San Luis?

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

6.1

Sightseeing

10th-best month of the year

0.6

Beach & pool

12th-best month of the year

July is a reasonable time to visit San Luis for sightseeing.

What to pack for San Luis in July

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

In July, San Luis sees daytime highs around 16°C and nights near 4°C. Worth packing: a warm layer.

a warm layer

UV index in San Luis 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 San Luis peaks around January 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 3 (moderate).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	14	13	10	6	4	3	3	4	6	10	12	13
Level	Extreme	Extreme	Extreme	High	Moderate	Moderate	Moderate	Moderate	High	Very high	Extreme	Extreme

	UV index (midday)	Level
Jan	14	Extreme
Feb	13	Extreme
Mar	10	Extreme
Apr	6	High
May	4	Moderate
Jun	3	Moderate
Jul	3	Moderate
Aug	4	Moderate
Sep	6	High
Oct	10	Very high
Nov	12	Extreme
Dec	13	Extreme

Location & terrain

Where is San Luis?

San Luis sits at 33.3°S, 66.3°W, 729 m above sea level, in Argentina. The nearest listed city is Villa Mercedes, 91 km away.

Topography around San Luis

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

Within 3 km, the terrain around San Luis has only modest variations in elevation — a maximum elevation change of 121 m around an average of 743 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,416 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,820 m.

The land around San Luis is covered by artificial surfaces (72%) within 3 km, shrubs (50%) and grassland (24%) within 16 km, and shrubs (59%) and grassland (22%) within 80 km.

3 km

121 m

artificial surfaces 72%

16 km

1,416 m

shrubs 50%

80 km

1,820 m

shrubs 59%

treesshrubsgrasslandcroplandartificial surfacesbare terrain

← June San Luis year-round climate August →Best places to visit in July

July weather nearby: Villa Mercedes 91 km · Villa Dolores 184 km · Río Cuarto 184 km · Rivadavia 199 km · San Martín 201 km · Embalse 217 km · Rodeo del Medio 222 km · General Alvear 226 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

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 San Luis (-33.2914°, -66.3247°, elevation 729 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°C)	Avg low (°C)
1	16	4
2	16	4
3	16	4
4	16	4
5	16	4
6	15	4
7	15	4
8	15	4
9	15	4
10	15	4
11	15	4
12	15	4
13	15	4
14	15	4
15	15	4
16	15	4
17	16	4
18	16	4
19	16	4
20	16	4
21	16	4
22	16	4
23	16	4
24	16	4
25	16	4
26	16	4
27	16	4
28	16	4
29	16	4
30	17	4
31	17	4

	Clearer (%)	Cloudier (%)
1	72	28
2	72	28
3	72	28
4	72	28
5	72	28
6	72	28
7	72	28
8	72	28
9	73	27
10	74	26
11	73	27
12	73	27
13	73	27
14	74	26
15	74	26
16	74	26
17	74	26
18	76	24
19	76	24
20	77	23
21	77	23
22	77	23
23	77	23
24	77	23
25	77	23
26	77	23
27	77	23
28	77	23
29	77	23
30	78	22
31	78	22

	Rain chance (%)	Snow chance (%)
1	6	1
2	6	1
3	6	1
4	7	2
5	7	2
6	7	2
7	7	2
8	7	2
9	7	2
10	7	2
11	8	2
12	8	2
13	8	2
14	7	2
15	7	2
16	7	2
17	7	2
18	7	2
19	7	1
20	7	1
21	7	1
22	7	1
23	6	1
24	6	1
25	6	1
26	7	1
27	7	1
28	7	1
29	7	1
30	7	1
31	7	1

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°C)	Avg low (°C)
1	16	4
2	16	4
3	16	4
4	16	4
5	16	4
6	15	4
7	15	4
8	15	4
9	15	4
10	15	4
11	15	4
12	15	4
13	15	4
14	15	4
15	15	4
16	15	4
17	16	4
18	16	4
19	16	4
20	16	4
21	16	4
22	16	4
23	16	4
24	16	4
25	16	4
26	16	4
27	16	4
28	16	4
29	16	4
30	17	4
31	17	4

	Clearer (%)	Cloudier (%)
1	72	28
2	72	28
3	72	28
4	72	28
5	72	28
6	72	28
7	72	28
8	72	28
9	73	27
10	74	26
11	73	27
12	73	27
13	73	27
14	74	26
15	74	26
16	74	26
17	74	26
18	76	24
19	76	24
20	77	23
21	77	23
22	77	23
23	77	23
24	77	23
25	77	23
26	77	23
27	77	23
28	77	23
29	77	23
30	78	22
31	78	22

	Rain chance (%)	Snow chance (%)
1	6	1
2	6	1
3	6	1
4	7	2
5	7	2
6	7	2
7	7	2
8	7	2
9	7	2
10	7	2
11	8	2
12	8	2
13	8	2
14	7	2
15	7	2
16	7	2
17	7	2
18	7	2
19	7	1
20	7	1
21	7	1
22	7	1
23	6	1
24	6	1
25	6	1
26	7	1
27	7	1
28	7	1
29	7	1
30	7	1
31	7	1

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°C)	Avg low (°C)
1	16	4
2	16	4
3	16	4
4	16	4
5	16	4
6	15	4
7	15	4
8	15	4
9	15	4
10	15	4
11	15	4
12	15	4
13	15	4
14	15	4
15	15	4
16	15	4
17	16	4
18	16	4
19	16	4
20	16	4
21	16	4
22	16	4
23	16	4
24	16	4
25	16	4
26	16	4
27	16	4
28	16	4
29	16	4
30	17	4
31	17	4

	Clearer (%)	Cloudier (%)
1	72	28
2	72	28
3	72	28
4	72	28
5	72	28
6	72	28
7	72	28
8	72	28
9	73	27
10	74	26
11	73	27
12	73	27
13	73	27
14	74	26
15	74	26
16	74	26
17	74	26
18	76	24
19	76	24
20	77	23
21	77	23
22	77	23
23	77	23
24	77	23
25	77	23
26	77	23
27	77	23
28	77	23
29	77	23
30	78	22
31	78	22

	Rain chance (%)	Snow chance (%)
1	6	1
2	6	1
3	6	1
4	7	2
5	7	2
6	7	2
7	7	2
8	7	2
9	7	2
10	7	2
11	8	2
12	8	2
13	8	2
14	7	2
15	7	2
16	7	2
17	7	2
18	7	2
19	7	1
20	7	1
21	7	1
22	7	1
23	6	1
24	6	1
25	6	1
26	7	1
27	7	1
28	7	1
29	7	1
30	7	1
31	7	1

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100