Rosario de Lerma weather in October

In October, Rosario de Lerma sees average daytime highs of 22°C and overnight lows near 12°C, with 91 mm of precipitation across 14 wet days and about 12.6 hours of daylight. It is the 5th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 22°C through the month. The sky is clear or mostly clear about 34% of the time in October, and the air most often feels dry.

Daylight stretches from about 12 h 12 min at the start of October to 12 h 54 min by month's end. Set against the rest of the year, October is Rosario de Lerma's 5th-clearest and 1st-windiest month. For the whole year in context, see Rosario de Lerma's year-round climate.

Daytime high
22°
5th warmest
Overnight low
12°
6th coldest
Precipitation
91 mm
14 wet days
Daylight
12 h 36 min
6:49 AM – 7:25 PM
Cloud cover
59%
5th clearest
Wind
5 km/h
1st windiest
Solar energy
5.89 kWh/m²
Travel score
6.2
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 22°C through the month.

A typical October day in Rosario de Lerma reaches about 22°C in the afternoon and slips back to 12°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 29°C. Set against its neighbours, October runs about 2°C warmer than September and about 1°C cooler than November.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12110
22110
32210
42211
52211
62211
72211
82211
92211
102211
112211
122212
132212
142212
152212
162212
172312
182312
192312
202312
212313
222313
232313
242313
252313
262313
272313
282313
292313
302313
312313

Rosario de Lerma weather by month

How October compares with the rest of the year at a glance. October is the 5th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan24° / 16°21624.3013.44.6
Feb23° / 16°19522.7012.94.4
Mar22° / 15°20223.8012.24.4
Apr20° / 12°12919.50.111.44.7
May17° / 7413.60.210.85.1
Jun16° / 368.20.410.55.5
Jul16° / 286.70.710.65.8
Aug18° / 275.80.311.17.0
Sep20° / 397.60.111.87.0
Oct22° / 12°91140.112.66.2
Nov23° / 14°12616.5013.25.7
Dec24° / 15°18121.2013.55.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 15% of October, with mostly cloudy or overcast conditions the remaining 51%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15941
25842
35842
45743
55743
65644
75545
85446
95446
105347
115248
125149
135050
144951
154852
164753
174654
184654
194654
204555
214456
224357
234456
244456
254456
264357
274357
284456
294456
304456
314456

Chance of precipitation in October

Any precipitation

Rosario de Lerma gets around 91 mm of rain and snow over 14 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 44% and peaks near 51% on the wettest days, and about 0 day brings snow. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
137
237
337
438
538
639
739
840
940
1040
1140
1241
1341
1442
1543
1644
1745
1846
1946
2047
2148
2248
2349
2450
2550
2650
2751
2851
2951
3051
3151

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 78% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19370
29370
39280
49190
590100
689110
788120
888120
987130
1086140
1185150
1284160
1383170
1482180
1580191
1678211
1777221
1876231
1974242
2074242
2173252
2271263
2370273
2470273
2568284
2667294
2766304
2865314
2965314
3064324
3162335

Wind in October

Winds average 5 km/h in October, the windiest month of the year.

Across October, daily wind ranges from about 5 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
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 h 12 min at the start of October to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over October. Sunrise moves from 7:04 AM to 6:38 AM, and sunset from 7:18 PM to 7:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.27:047:18
212.37:037:19
312.37:027:19
412.37:017:20
512.37:007:20
612.46:597:20
712.46:587:21
812.46:577:21
912.46:567:22
1012.56:557:22
1112.56:547:23
1212.56:537:23
1312.56:527:24
1412.56:517:24
1512.66:507:25
1612.66:497:25
1712.66:497:26
1812.66:487:26
1912.76:477:27
2012.76:467:27
2112.76:457:28
2212.76:447:28
2312.86:447:29
2412.86:437:30
2512.86:427:30
2612.86:417:31
2712.86:417:31
2812.96:407:32
2912.96:397:33
3012.96:387:33
3112.96:387:34

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.89 kWh/m².

For context, solar energy here swings from a low near 3.59 kWh/m² to a high of 6.02 kWh/m² in November across the year — October's 5.89 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
65.9Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
306.0Bright
316.0Bright
Planning a trip in October

Hazard calendar for Rosario de Lerma

In seasonPeak

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

Rosario de Lerma's rainy season runs November–April, when most of the year's rain falls.

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

Is October a good time to visit Rosario de Lerma?

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

6.2
Sightseeing
3rd-best month of the year
4.5
Beach & pool
2nd-best month of the year

October is a reasonable time to visit Rosario de Lerma for sightseeing.

What to pack for Rosario de Lerma in October

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

In October, Rosario de Lerma sees daytime highs around 22°C and nights near 12°C. Pack rain gear. Worth having: light clothes and sun protection. About 14 days see rain.

rain gearlight clothessun protection

UV index in Rosario de Lerma in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October 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 Rosario de Lerma peaks around January 16 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 16UV 16Jul 10UV 6
UV index (midday)Level
Jan16Extreme
Feb16Extreme
Mar14Extreme
Apr9Very high
May7Very high
Jun6High
Jul6High
Aug8Very high
Sep10Extreme
Oct13Extreme
Nov15Extreme
Dec16Extreme
Location & terrain

Where is Rosario de Lerma?

Rosario de Lerma sits at 25.0°S, 65.6°W, 1,421 m above sea level, in Argentina. The nearest listed city is San José de los Cerrillos, 14 km away.

Topography around Rosario de Lerma

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

Within 3 km, the terrain around Rosario de Lerma has only modest variations in elevation — a maximum elevation change of 103 m around an average of 1,318 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,912 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,593 m.

The land around Rosario de Lerma is covered by cropland (66%) within 3 km, cropland (45%) and trees (38%) within 16 km, and trees (37%), grassland (23%) and bare terrain (23%) within 80 km.

3 km
103 m
16 km
1,912 m
80 km
5,593 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
October weather nearby: San José de los Cerrillos 14 km · Salta 26 km · San Lorenzo 29 km · General Güemes 64 km · San José de Metán 83 km · Palpalá 89 km · San Salvador de Jujuy 93 km · Rosario de la Frontera 109 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 Rosario de Lerma (-24.9858°, -65.5784°, elevation 1,421 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).