San Isidro weather in July

In July, San Isidro sees average daytime highs of 16°C and overnight lows near 2°C, with 15 mm of precipitation across 3.3 wet days and about 10.4 hours of daylight. It is the 12th-warmest and 12th-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 67% of the time in July, and the air most often feels dry.

Daylight stretches from about 10 h 12 min at the start of July to 10 h 36 min by month's end. Set against the rest of the year, July is San Isidro's 2nd-clearest and 7th-windiest month. For the whole year in context, see San Isidro's year-round climate.

Daytime high: 16°; 12th warmest
Overnight low: 2°; 1st coldest
Precipitation: 15 mm; 3.3 wet days
Daylight: 10 h 24 min; 8:18 AM – 6:39 PM
Cloud cover: 29%; 2nd clearest
Wind: 7 km/h; 7th windiest
Solar energy: 3.78 kWh/m²
Travel score: 6.5; out of 10

San Isidro is city in Valle Viejo Department, Catamarca Province, Argentina.

Founded: 1698

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

← June San Isidro 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 Isidro reaches about 16°C in the afternoon and slips back to 2°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 23°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	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	17	17	17	17	17	17	17	17
Avg low (°C)	3	3	3	3	3	3	3	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	3	3	3	3	3

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

San Isidro weather by month

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

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	26° / 17°	167	16.7	0	13.6	5.7
Feb	25° / 16°	117	13.7	0	13	6.1
Mar	23° / 15°	109	13.2	0	12.2	6.4
Apr	21° / 11°	65	9.7	0.2	11.3	6.6
May	18° / 7°	37	6.9	0.2	10.6	6.5
Jun	17° / 4°	20	4.1	0.4	10.2	6.3
Jul	16° / 2°	15	3.3	0.9	10.4	6.5
Aug	19° / 5°	17	3.3	0.4	11	7.6
Sep	21° / 8°	32	5.4	0.4	11.8	7.6
Oct	23° / 11°	65	10	0	12.7	7.2
Nov	24° / 14°	98	12.9	0	13.4	6.6
Dec	26° / 16°	129	15.4	0	13.8	6.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 67% 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 22%. 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	73	73	74	75	75	75	75	75	76	76	77	78	78	78	79	79	79	81	81	81	81	82	82	82	82	82	82	81	81	81
Cloudier (%)	28	27	27	26	25	25	25	25	25	24	24	23	22	22	22	21	21	21	19	19	19	19	18	18	18	18	18	18	19	19	19

	Clearer (%)	Cloudier (%)
1	72	28
2	73	27
3	73	27
4	74	26
5	75	25
6	75	25
7	75	25
8	75	25
9	75	25
10	76	24
11	76	24
12	77	23
13	78	22
14	78	22
15	78	22
16	79	21
17	79	21
18	79	21
19	81	19
20	81	19
21	81	19
22	81	19
23	82	18
24	82	18
25	82	18
26	82	18
27	82	18
28	82	18
29	81	19
30	81	19
31	81	19

Chance of precipitation in July

Any precipitationSnow

San Isidro gets around 15 mm of rain and snow over 3.3 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 precipitation averages around 10% and peaks near 11% on the wettest days, and about 1 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 (%)	11	11	10	10	10	10	10	10	10	11	11	11	11	11	11	11	11	11	11	11	11	11	10	10	10	10	10	10	10	10	10
Snow chance (%)	1	2	2	2	2	2	2	2	2	3	3	3	3	3	3	4	4	4	4	4	4	3	3	3	3	3	3	3	2	2	2

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

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 7 km/h in July.

Across July, daily wind ranges from about 6 km/h on the calmest days to 7 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)	6	6	6	6	6	6	6	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7
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	6	calm
2	6	calm
3	6	calm
4	6	calm
5	6	calm
6	6	calm
7	6	calm
8	7	calm
9	7	calm
10	7	calm
11	7	calm
12	7	calm
13	7	calm
14	7	calm
15	7	calm
16	7	calm
17	7	calm
18	7	calm
19	7	calm
20	7	calm
21	7	calm
22	7	calm
23	7	calm
24	7	calm
25	7	calm
26	7	calm
27	7	calm
28	7	calm
29	7	calm
30	7	calm
31	7	calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 10 h 12 min at the start of July to 10 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over July. Sunrise moves from 8:20 AM to 8:11 AM, and sunset from 6:33 PM to 6:47 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)	10.2	10.2	10.2	10.2	10.2	10.2	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.4	10.4	10.4	10.4	10.4	10.4	10.4	10.5	10.5	10.5	10.5	10.5	10.5	10.6	10.6	10.6
Sunrise (AM)	8:20	8:20	8:20	8:20	8:20	8:20	8:20	8:20	8:20	8:19	8:19	8:19	8:19	8:19	8:18	8:18	8:18	8:17	8:17	8:17	8:16	8:16	8:15	8:15	8:14	8:14	8:13	8:13	8:12	8:11	8:11
Sunset (PM)	6:33	6:33	6:33	6:34	6:34	6:34	6:35	6:35	6:36	6:36	6:37	6:37	6:38	6:38	6:39	6:39	6:40	6:40	6:41	6:41	6:42	6:42	6:43	6:43	6:44	6:44	6:45	6:46	6:46	6:47	6:47

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	10.2	8:20	6:33
2	10.2	8:20	6:33
3	10.2	8:20	6:33
4	10.2	8:20	6:34
5	10.2	8:20	6:34
6	10.2	8:20	6:34
7	10.3	8:20	6:35
8	10.3	8:20	6:35
9	10.3	8:20	6:36
10	10.3	8:19	6:36
11	10.3	8:19	6:37
12	10.3	8:19	6:37
13	10.3	8:19	6:38
14	10.3	8:19	6:38
15	10.3	8:18	6:39
16	10.4	8:18	6:39
17	10.4	8:18	6:40
18	10.4	8:17	6:40
19	10.4	8:17	6:41
20	10.4	8:17	6:41
21	10.4	8:16	6:42
22	10.4	8:16	6:42
23	10.5	8:15	6:43
24	10.5	8:15	6:43
25	10.5	8:14	6:44
26	10.5	8:14	6:44
27	10.5	8:13	6:45
28	10.5	8:13	6:46
29	10.6	8:12	6:46
30	10.6	8:11	6:47
31	10.6	8:11	6:47

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 3.78 kWh/m².

For context, solar energy here swings from a low near 3.4 kWh/m² to a high of 6.6 kWh/m² in December across the year — July's 3.78 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)	3.5	3.5	3.5	3.5	3.5	3.5	3.6	3.6	3.6	3.6	3.6	3.7	3.7	3.7	3.8	3.8	3.8	3.8	3.9	3.9	3.9	3.9	4.0	4.0	4.0	4.0	4.1	4.1	4.1	4.1	4.2
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	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	3.5	Moderate
2	3.5	Moderate
3	3.5	Moderate
4	3.5	Moderate
5	3.5	Moderate
6	3.5	Moderate
7	3.6	Moderate
8	3.6	Moderate
9	3.6	Moderate
10	3.6	Moderate
11	3.6	Moderate
12	3.7	Moderate
13	3.7	Moderate
14	3.7	Moderate
15	3.8	Moderate
16	3.8	Moderate
17	3.8	Moderate
18	3.8	Moderate
19	3.9	Moderate
20	3.9	Moderate
21	3.9	Moderate
22	3.9	Moderate
23	4.0	Moderate
24	4.0	Moderate
25	4.0	Bright
26	4.0	Bright
27	4.1	Bright
28	4.1	Bright
29	4.1	Bright
30	4.1	Bright
31	4.2	Bright

Planning a trip in July

Hazard calendar for San Isidro

In seasonPeak

None of San Isidro'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 Isidro's rainy season runs November–March, 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 Isidro?

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

6.5

Sightseeing

6th-best month of the year

1.1

Beach & pool

12th-best month of the year

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

What to pack for San Isidro in July

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

In July, San Isidro sees daytime highs around 16°C and nights near 2°C. Worth packing: a warm layer. About 3 days see rain.

a warm layer

UV index in San Isidro in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 4 — 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 Isidro peaks around January 18 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 4 (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)	15	14	12	7	5	4	4	6	8	12	13	14
Level	Extreme	Extreme	Extreme	Very high	High	Moderate	Moderate	High	Very high	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	15	Extreme
Feb	14	Extreme
Mar	12	Extreme
Apr	7	Very high
May	5	High
Jun	4	Moderate
Jul	4	Moderate
Aug	6	High
Sep	8	Very high
Oct	12	Extreme
Nov	13	Extreme
Dec	14	Extreme

Location & terrain

Where is San Isidro?

San Isidro sits at 28.5°S, 65.7°W, 518 m above sea level, in Argentina. The nearest listed city is Catamarca, 6.0 km away.

Topography around San Isidro

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

Within 3 km, the terrain around San Isidro has only modest variations in elevation — a maximum elevation change of 134 m around an average of 522 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,541 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,232 m.

The land around San Isidro is covered by artificial surfaces (33%), trees (24%) and shrubs (21%) within 3 km, trees (40%) and shrubs (38%) within 16 km, and shrubs (44%) and trees (24%) within 80 km.

3 km

134 m

artificial surfaces 33%

16 km

1,541 m

trees 40%

80 km

4,232 m

shrubs 44%

treesshrubsgrasslandcroplandartificial surfacesbare terrain

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

July weather nearby: Catamarca 6.0 km · Aimogasta 106 km · Aguilares 115 km · Termas de Río Hondo 137 km · Monteros 145 km · La Rioja 153 km · Belén 156 km · Famaillá 159 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 Isidro (-28.4578°, -65.725°, elevation 518 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	3
2	16	3
3	16	3
4	16	3
5	16	3
6	16	3
7	16	3
8	16	2
9	16	2
10	16	2
11	16	2
12	16	2
13	16	2
14	16	2
15	16	2
16	16	2
17	16	2
18	16	2
19	16	2
20	16	2
21	16	2
22	16	2
23	16	2
24	17	2
25	17	2
26	17	2
27	17	3
28	17	3
29	17	3
30	17	3
31	17	3

	Clearer (%)	Cloudier (%)
1	72	28
2	73	27
3	73	27
4	74	26
5	75	25
6	75	25
7	75	25
8	75	25
9	75	25
10	76	24
11	76	24
12	77	23
13	78	22
14	78	22
15	78	22
16	79	21
17	79	21
18	79	21
19	81	19
20	81	19
21	81	19
22	81	19
23	82	18
24	82	18
25	82	18
26	82	18
27	82	18
28	82	18
29	81	19
30	81	19
31	81	19

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

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

	Clearer (%)	Cloudier (%)
1	72	28
2	73	27
3	73	27
4	74	26
5	75	25
6	75	25
7	75	25
8	75	25
9	75	25
10	76	24
11	76	24
12	77	23
13	78	22
14	78	22
15	78	22
16	79	21
17	79	21
18	79	21
19	81	19
20	81	19
21	81	19
22	81	19
23	82	18
24	82	18
25	82	18
26	82	18
27	82	18
28	82	18
29	81	19
30	81	19
31	81	19

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

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

	Clearer (%)	Cloudier (%)
1	72	28
2	73	27
3	73	27
4	74	26
5	75	25
6	75	25
7	75	25
8	75	25
9	75	25
10	76	24
11	76	24
12	77	23
13	78	22
14	78	22
15	78	22
16	79	21
17	79	21
18	79	21
19	81	19
20	81	19
21	81	19
22	81	19
23	82	18
24	82	18
25	82	18
26	82	18
27	82	18
28	82	18
29	81	19
30	81	19
31	81	19

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

	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