La Rioja weather in August

In August, La Rioja sees average daytime highs of 21°C and overnight lows near 8°C, with 10 mm of rain across 2.1 wet days and about 10.9 hours of daylight. It is the 9th-warmest and 11th-wettest month of the year here.

Highs climb over the month, from about 19°C in the first days to 23°C by the end. The sky is clear or mostly clear about 73% of the time in August, and the air most often feels dry.

Daylight stretches from about 10 h 36 min at the start of August to 11 h 18 min by month's end. Set against the rest of the year, August is La Rioja's 1st-clearest and 4th-windiest month. For the whole year in context, see La Rioja's year-round climate.

Daytime high
21°
9th warmest
Overnight low
3rd coldest
Rainfall
10 mm
2.1 wet days
Daylight
10 h 54 min
8:04 AM – 7:00 PM
Cloud cover
25%
1st clearest
Wind
8 km/h
4th windiest
Solar energy
4.46 kWh/m²
Travel score
8.3
out of 10

La Rioja is city in Capital Department, La Rioja Province, Argentina.

Density
13,116/km²
people per km²
Founded
1591

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 19°C in the first days to 23°C by the end.

A typical August day in La Rioja reaches about 21°C in the afternoon and slips back to 8°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 27°C. Set against its neighbours, August runs about 4°C warmer than July and about 4°C cooler than September.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1196
2196
3197
4197
5197
6197
7197
8207
9207
10207
11208
12208
13208
14208
15218
16218
17218
18219
19219
20219
21229
22229
23229
24229
252210
262210
272210
282210
292310
302310
312310

How August really feels in La Rioja

Once humidity and wind are folded in, August 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

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

La Rioja weather by month

How August compares with the rest of the year at a glance. August is the 9th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 22°10211.213.73.9
Feb31° / 21°769.613.14.8
Mar28° / 19°789.812.26.1
Apr24° / 15°477.911.37.4
May20° / 11°295.510.57.1
Jun17° / 153.410.26.5
Jul17° / 102.210.37.0
Aug21° / 102.110.98.3
Sep24° / 12°243.411.88.5
Oct28° / 16°48612.77.1
Nov30° / 19°617.713.55.3
Dec32° / 21°859.313.84.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 73% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 10% of August, with mostly cloudy or overcast conditions the remaining 16%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18515
28515
38416
48416
58416
68416
78416
88416
98416
108416
118416
128416
138416
148416
158416
168416
178416
188416
198515
208614
218614
228614
238416
248416
258416
268416
278317
288218
298119
308119
318119

Chance of precipitation in August

Any precipitation

La Rioja gets around 10 mm of rain over 2.1 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 7% and peaks near 9% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
16
26
36
46
56
66
76
86
96
107
117
127
137
147
157
167
177
187
197
207
217
227
237
247
258
268
278
288
298
308
319

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
27991
28991
29991
30991
31991

Wind in August

Winds average 8 km/h in August.

Across August, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 10 h 36 min at the start of August to 11 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over August. Sunrise moves from 8:16 AM to 7:47 AM, and sunset from 6:51 PM to 7:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.68:166:51
210.68:166:51
310.68:156:52
410.68:146:52
510.78:136:53
610.78:136:54
710.78:126:54
810.78:116:55
910.88:106:55
1010.88:096:56
1110.88:086:57
1210.88:076:57
1310.98:066:58
1410.98:056:58
1510.98:046:59
1610.98:047:00
1711.08:037:00
1811.08:017:01
1911.08:007:01
2011.07:597:02
2111.17:587:02
2211.17:577:03
2311.17:567:04
2411.27:557:04
2511.27:547:05
2611.27:537:05
2711.27:527:06
2811.37:517:06
2911.37:497:07
3011.37:487:07
3111.37:477:08

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.46 kWh/m².

For context, solar energy here swings from a low near 3.01 kWh/m² to a high of 6.72 kWh/m² in December across the year — August's 4.46 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.0Moderate
24.0Bright
34.0Bright
44.0Bright
54.1Bright
64.1Bright
74.2Bright
84.2Bright
94.2Bright
104.3Bright
114.3Bright
124.3Bright
134.3Bright
144.4Bright
154.4Bright
164.5Bright
174.5Bright
184.5Bright
194.6Bright
204.6Bright
214.6Bright
224.7Bright
234.7Bright
244.7Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in August

Hazard calendar for La Rioja

In seasonPeak

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

La Rioja'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 August a good time to visit La Rioja?

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

8.3
Sightseeing
2nd-best month of the year
4.8
Beach & pool
9th-best month of the year

August is one of the better times to visit La Rioja for general sightseeing.

What to pack for La Rioja in August

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

In August, La Rioja sees daytime highs around 21°C and nights near 8°C. Little to plan around — just the basics.

UV index in La Rioja in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in La Rioja peaks around January 20 at about 14 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeHighModerateVery highExtremeJan 20UV 14Jun 22UV 4
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar12Extreme
Apr7High
May5Moderate
Jun4Moderate
Jul4Moderate
Aug5Moderate
Sep7Very high
Oct11Extreme
Nov13Extreme
Dec13Extreme
Location & terrain

Where is La Rioja?

La Rioja sits at 29.4°S, 66.9°W, 493 m above sea level, in Argentina. The nearest listed city is Chilecito, 68 km away.

Cruz del EjeAguilaresDeán Funes

Topography around La Rioja

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

Within 3 km, the terrain around La Rioja has only modest variations in elevation — a maximum elevation change of 141 m around an average of 516 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,895 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,858 m.

The land around La Rioja is covered by artificial surfaces (70%) within 3 km, shrubs (58%) and trees (24%) within 16 km, and shrubs (76%) within 80 km.

3 km
141 m
16 km
1,895 m
80 km
3,858 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
August weather nearby: Chilecito 68 km · Aimogasta 95 km · Catamarca 148 km · San Isidro 153 km · Belén 197 km · Cruz del Eje 246 km · Aguilares 252 km · Deán Funes 266 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 La Rioja (-29.4133°, -66.8564°, elevation 493 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).