San Justo weather in October

In October, San Justo sees average daytime highs of 25°C and overnight lows near 14°C, with 137 mm of rain across 9.2 wet days and about 12.8 hours of daylight. It is the 6th-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 24°C in the first days to 26°C by the end. The sky is clear or mostly clear about 46% of the time in October, and the air most often feels dry.

Daylight stretches from about 12 h 18 min at the start of October to 13 h 12 min by month's end. Set against the rest of the year, October is San Justo's 10th-clearest and 2nd-windiest month. For the whole year in context, see San Justo's year-round climate.

Daytime high
25°
6th warmest
Overnight low
14°
6th coldest
Rainfall
137 mm
9.2 wet days
Daylight
12 h 48 min
6:25 AM – 7:10 PM
Cloud cover
49%
10th clearest
Wind
13 km/h
2nd windiest
Solar energy
5.65 kWh/m²
Travel score
7.1
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 24°C in the first days to 26°C by the end.

A typical October day in San Justo 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 20°C and 31°C. Set against its neighbours, October runs about 3°C warmer than September and about 3°C cooler than November.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12413
22413
32413
42413
52413
62413
72413
82514
92514
102514
112514
122514
132514
142514
152514
162514
172614
182615
192615
202615
212615
222615
232615
242615
252615
262615
272615
282615
292615
302615
312715

How October really feels in San Justo

Once humidity and wind are folded in, October averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

October sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

San Justo weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 20°1259.613.84.6
Feb30° / 20°1248.713.15.2
Mar28° / 18°1268.912.26.3
Apr25° / 15°1328.911.37.2
May21° / 12°786.210.57.1
Jun18° / 495.2106.7
Jul18° / 374.310.26.9
Aug21° / 564.710.97.5
Sep23° / 11°706.311.87.6
Oct25° / 14°1379.212.87.1
Nov28° / 16°1258.113.66.6
Dec30° / 19°1348.9145.3

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 12% of October, with mostly cloudy or overcast conditions the remaining 42%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15941
25842
35842
45743
55743
65644
75644
85644
95743
105743
115842
125842
135941
145941
155941
165941
175842
185842
195842
205743
215743
225842
235842
245842
255842
265842
275941
285941
295941
305941
315941

Chance of precipitation in October

Any precipitation

San Justo gets around 137 mm of rain over 9.2 wet days in October, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 29% and peaks near 30% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
127
227
328
428
529
629
729
830
930
1030
1129
1229
1329
1429
1529
1629
1729
1829
1929
2029
2129
2229
2329
2429
2528
2628
2728
2828
2928
3028
3128

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 46% of days. Sticky, muggy-or-worse air turns up on roughly 13% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
161211260
260211270
359211370
458201381
557201481
655201591
755201591
854201691
9522016102
10502117102
11502117102
12492217102
13482317102
14462418102
15452518112
16442618112
17422718112
18412718112
19402818122
20402818122
21392818132
22392818132
23382818132
24382818142
25382819142
26372819142
27372820142
28362820142
29362821142
30352722142
31342722152

Wind in October

Winds average 13 km/h in October.

Across October, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light 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 October

DaylightNight

Daylight runs from about 12 h 18 min at the start of October to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over October. Sunrise moves from 6:42 AM to 6:10 AM, and sunset from 7:00 PM to 7:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:427:00
212.36:417:01
312.46:407:01
412.46:397:02
512.46:377:03
612.56:367:03
712.56:357:04
812.56:347:05
912.56:337:05
1012.66:317:06
1112.66:307:07
1212.66:297:07
1312.76:287:08
1412.76:277:09
1512.76:267:10
1612.86:257:10
1712.86:237:11
1812.86:227:12
1912.96:217:12
2012.96:207:13
2112.96:197:14
2212.96:187:15
2313.06:177:15
2413.06:167:16
2513.06:157:17
2613.16:147:18
2713.16:137:19
2813.16:137:19
2913.16:127:20
3013.26:117:21
3113.26:107:22

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.65 kWh/m².

For context, solar energy here swings from a low near 2.5 kWh/m² to a high of 7.16 kWh/m² in December across the year — October's 5.65 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.4Bright
95.4Bright
105.4Bright
115.5Bright
125.5Bright
135.5Bright
145.6Bright
155.6Bright
165.7Bright
175.7Bright
185.8Bright
195.8Bright
205.8Bright
215.9Bright
225.9Bright
236.0Bright
246.0Intense
256.1Intense
266.1Intense
276.2Intense
286.2Intense
296.2Intense
306.3Intense
316.3Intense
Planning a trip in October

Is October a good time to visit San Justo?

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

7.1
Sightseeing
4th-best month of the year
6.6
Beach & pool
6th-best month of the year

October is one of the better times to visit San Justo for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for San Justo in October

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

In October, San Justo sees daytime highs around 25°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

UV index in San Justo in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in San Justo peaks around January 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 18UV 14Jun 20UV 3
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar10Extreme
Apr7High
May4Moderate
Jun3Moderate
Jul4Moderate
Aug5Moderate
Sep7High
Oct9Very high
Nov11Extreme
Dec13Extreme
Location & terrain

Where is San Justo?

San Justo sits at 30.8°S, 60.6°W, 49 m above sea level, in Argentina. The nearest listed city is San Javier, 68 km away.

Topography around San Justo

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

Within 3 km, the terrain around San Justo has only modest variations in elevation — a maximum elevation change of 26 m around an average of 52 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 49 m; within 80 km, only modest variations in elevation — a maximum elevation change of 79 m.

The land around San Justo is covered by cropland (55%) and grassland (23%) within 3 km, cropland (72%) and grassland (20%) within 16 km, and cropland (41%) and grassland (30%) within 80 km.

3 km
26 m
16 km
49 m
80 km
79 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
October weather nearby: San Javier 68 km · Santa Elena 79 km · Esperanza 80 km · La Paz 91 km · Sunchales 94 km · Santa Fe 96 km · Santo Tomé 98 km · Rafaela 100 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 San Justo (-30.7899°, -60.5928°, elevation 49 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).