San Pedro de Jujuy weather in September

In September, San Pedro de Jujuy sees average daytime highs of 27°C and overnight lows near 13°C, with 15 mm of rain across 3.5 wet days and about 11.8 hours of daylight. It is the 6th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 26°C in the first days to 28°C by the end. The sky is clear or mostly clear about 54% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 30 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is San Pedro de Jujuy's 3rd-clearest and 2nd-windiest month. For the whole year in context, see San Pedro de Jujuy's year-round climate.

Daytime high
27°
6th warmest
Overnight low
13°
5th coldest
Rainfall
15 mm
3.5 wet days
Daylight
11 h 54 min
7:18 AM – 7:10 PM
Cloud cover
42%
3rd clearest
Wind
6 km/h
2nd windiest
Solar energy
5.21 kWh/m²
Travel score
7.7
out of 10

San Pedro de Jujuy is city in the province of Jujuy, Argentina.

Density
27/km²
people per km²
Founded
1883

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 26°C in the first days to 28°C by the end.

A typical September day in San Pedro de Jujuy reaches about 27°C in the afternoon and slips back to 13°C overnight — a 15°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 35°C. Set against its neighbours, September runs about 3°C warmer than August and about 2°C cooler than October.

10°20°30°40°151015202530
Avg high (°C)Avg low (°C)
12611
22611
32611
42611
52612
62712
72712
82712
92712
102712
112712
122712
132712
142712
152712
162713
172713
182713
192713
202813
212813
222813
232813
242814
252814
262814
272814
282814
292814
302814

San Pedro de Jujuy weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 20°19818.913.34.2
Feb28° / 19°18317.412.84.7
Mar26° / 18°16017.812.25.3
Apr24° / 15°7712.811.56.4
May21° / 12°317.210.86.9
Jun20° / 113.310.57.4
Jul21° / 82.610.77.9
Aug24° / 92.311.28.6
Sep27° / 13°153.511.87.7
Oct29° / 16°569.612.65.5
Nov30° / 18°10013.413.24.7
Dec30° / 20°17017.813.54.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 54% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 33%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17327
27327
37327
47129
57129
67129
76931
86931
96931
106931
116931
126931
136931
146931
156931
166832
176832
186733
196733
206634
216535
226436
236436
246337
256238
266139
275941
285941
295842
305743

Chance of precipitation in September

Any precipitation

San Pedro de Jujuy gets around 15 mm of rain over 3.5 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 12% and peaks near 18% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
19
29
39
49
510
610
710
810
910
1010
1110
1210
1310
1410
1510
1611
1711
1812
1912
2013
2113
2214
2314
2415
2515
2616
2717
2817
2918
3018

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 85% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
18992
28992
38893
48893
58893
68893
78893
88893
98992
108992
118992
128992
138992
148992
1588102
1688102
1787112
1887112
1986122
2085132
2184142
2283152
2381163
2480173
2579183
2676204
2775214
2873225
2973225
3071236

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 30 min at the start of September to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over September. Sunrise moves from 7:34 AM to 7:03 AM, and sunset from 7:04 PM to 7:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:347:04
211.57:337:05
311.67:327:05
411.67:317:05
511.67:307:06
611.67:297:06
711.67:287:06
811.77:277:07
911.77:267:07
1011.77:257:08
1111.77:237:08
1211.87:227:08
1311.87:217:09
1411.87:207:09
1511.87:197:09
1611.97:187:10
1711.97:177:10
1811.97:167:10
1911.97:157:11
2012.07:147:11
2112.07:127:11
2212.07:117:12
2312.07:107:12
2412.17:097:12
2512.17:087:13
2612.17:077:13
2712.17:067:14
2812.27:057:14
2912.27:047:14
3012.27:037:15

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.21 kWh/m².

For context, solar energy here swings from a low near 2.88 kWh/m² to a high of 5.39 kWh/m² in December across the year — September's 5.21 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.1Bright
65.1Bright
75.1Bright
85.1Bright
95.1Bright
105.2Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
Planning a trip in September

Hazard calendar for San Pedro de Jujuy

In seasonPeak

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

San Pedro de Jujuy's monsoon runs November–March, when most of the year's rain falls.

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

Is September a good time to visit San Pedro de Jujuy?

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

7.7
Sightseeing
3rd-best month of the year
7.9
Beach & pool
1st-best month of the year

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

What to pack for San Pedro de Jujuy in September

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

In September, San Pedro de Jujuy sees daytime highs around 27°C and nights near 13°C. Pack light clothes. Worth having: sun protection. About 4 days see rain.

light clothessun protection

UV index in San Pedro de Jujuy in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Pedro de Jujuy peaks around January 18 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 18UV 15Jul 10UV 5
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr9Very high
May7High
Jun5High
Jul5High
Aug7Very high
Sep9Very high
Oct10Very high
Nov13Extreme
Dec14Extreme

Air quality in San Pedro de Jujuy in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in San Pedro de Jujuy is worst in September — around 26 µg/m³ PM2.5 (moderate), about 5.6× the cleanest month (May, 5 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateSep 2326 µg/m³May 155 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb9Good
Mar7Good
Apr6Good
May5Good
Jun6Good
Jul8Good
Aug13Moderate
Sep26Moderate
Oct26Moderate
Nov19Moderate
Dec13Moderate
Location & terrain

Where is San Pedro de Jujuy?

San Pedro de Jujuy sits at 24.2°S, 64.9°W, 587 m above sea level, in Argentina. The nearest listed city is Palpalá, 35 km away.

Topography around San Pedro de Jujuy

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

Within 3 km, the terrain around San Pedro de Jujuy has only modest variations in elevation — a maximum elevation change of 170 m around an average of 598 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,018 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,109 m.

The land around San Pedro de Jujuy is covered by trees (34%), artificial surfaces (29%) and cropland (26%) within 3 km, trees (60%) and cropland (33%) within 16 km, and trees (73%) within 80 km.

3 km
170 m
16 km
1,018 m
80 km
5,109 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Palpalá 35 km · San Salvador de Jujuy 44 km · Libertador General San Martín 47 km · General Güemes 53 km · San Lorenzo 84 km · Salta 85 km · San José de los Cerrillos 97 km · Santa Rosa 103 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 Pedro de Jujuy (-24.2313°, -64.8661°, elevation 587 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).