Juventino Rosas weather in September

In September, Juventino Rosas sees average daytime highs of 26°C and overnight lows near 15°C, with 121 mm of rain across 14.4 wet days and about 12.1 hours of daylight. It is the 8th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 18% of the time in September, and the air most often feels comfortable.

Daylight stretches from about 12 h 24 min at the start of September to 11 h 48 min by month's end. Set against the rest of the year, September is Juventino Rosas's 12th-clearest and 5th-windiest month. For the whole year in context, see Juventino Rosas's year-round climate.

Daytime high
26°
8th warmest
Overnight low
15°
8th coldest
Rainfall
121 mm
14.4 wet days
Daylight
12 h 06 min
6:35 AM – 6:42 PM
Cloud cover
67%
12th clearest
Wind
9 km/h
5th windiest
Solar energy
5.54 kWh/m²
Travel score
5.9
out of 10

Juventino Rosas is municipal seat of Juventino Rosas, State of Guanajuato, Mexico.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical September day in Juventino Rosas reaches about 26°C in the afternoon and slips back to 15°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 29°C. Set against its neighbours, September runs about 1°C cooler than August and on par with October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12615
22615
32615
42615
52615
62615
72615
82615
92615
102615
112615
122615
132615
142615
152615
162615
172615
182615
192615
202615
212615
222615
232615
242614
252614
262614
272614
282614
292614
302614

Juventino Rosas weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 122.210.98.4
Feb25° / 13211.38.5
Mar28° / 11°121.911.97.7
Apr30° / 14°143.212.56.0
May31° / 15°497.7135.1
Jun29° / 16°13013.713.25.1
Jul27° / 15°14417.113.15.5
Aug27° / 15°12715.112.75.7
Sep26° / 15°12114.412.15.9
Oct26° / 13°45711.57.2
Nov25° / 10°132.9118.4
Dec24° / 51.210.88.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 20% of September, with mostly cloudy or overcast conditions the remaining 62%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13763
23664
33565
43565
53664
63664
73664
83664
93664
103664
113664
123664
133763
143763
153763
163763
173862
183862
193763
203763
213862
223961
233961
244060
254159
264060
274258
284357
294258
304258

Chance of precipitation in September

Any precipitation

Juventino Rosas gets around 121 mm of rain over 14.4 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 47% and peaks near 56% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
154
255
355
455
556
656
756
856
955
1055
1154
1253
1352
1451
1550
1649
1748
1847
1945
2044
2142
2241
2339
2438
2536
2635
2734
2833
2932
3031

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the comfortable band about 49% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
1275617
2275617
3275518
4275518
5265519
6265519
7265420
8265420
9265420
10275320
11275320
12285220
13295120
14295120
15305119
16315019
17325018
18335017
19344917
20364916
21374815
22394714
23414613
24434513
25454312
26464211
27484111
28504010
2952399
3052399

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 24 min at the start of September to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over September. Sunrise moves from 6:31 AM to 6:38 AM, and sunset from 6:56 PM to 6:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:316:56
212.46:316:55
312.46:326:54
412.46:326:53
512.36:326:52
612.36:326:51
712.36:336:51
812.36:336:50
912.36:336:49
1012.26:336:48
1112.26:346:47
1212.26:346:46
1312.26:346:45
1412.26:346:44
1512.16:356:43
1612.16:356:42
1712.16:356:41
1812.16:356:40
1912.16:366:39
2012.06:366:38
2112.06:366:37
2212.06:366:36
2312.06:366:35
2412.06:376:34
2511.96:376:33
2611.96:376:32
2711.96:376:31
2811.96:386:30
2911.96:386:29
3011.86:386:28

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.54 kWh/m².

For context, solar energy here swings from a low near 4.83 kWh/m² to a high of 7.52 kWh/m² in April across the year — September's 5.54 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.6Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.4Bright
295.4Bright
305.4Bright
Planning a trip in September

Hazard calendar for Juventino Rosas

In seasonPeak

In September, Juventino Rosas sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Juventino Rosas's rainy season runs June–September, when most of the year's rain falls.

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

Is September a good time to visit Juventino Rosas?

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

5.9
Sightseeing
8th-best month of the year
5.7
Beach & pool
11th-best month of the year

September is a reasonable time to visit Juventino Rosas for sightseeing.

What to pack for Juventino Rosas in September

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

In September, Juventino Rosas sees daytime highs around 26°C and nights near 15°C. Pack rain gear. Worth having: light clothes and sun protection. About 14 days see rain.

rain gearlight clothessun protection

UV index in Juventino Rosas in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Juventino Rosas peaks around June 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highJun 13UV 14Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun14Extreme
Jul12Extreme
Aug13Extreme
Sep11Extreme
Oct11Extreme
Nov8Very high
Dec7Very high

Air quality in Juventino Rosas 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 Juventino Rosas is worst in May — around 21 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMay 1521 µg/m³Oct 1614 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb17Moderate
Mar17Moderate
Apr17Moderate
May21Moderate
Jun15Moderate
Jul17Moderate
Aug15Moderate
Sep16Moderate
Oct13Moderate
Nov16Moderate
Dec20Moderate
Location & terrain

Where is Juventino Rosas?

Juventino Rosas sits at 20.6°N, 101.0°W, 1,787 m above sea level, in Mexico. The nearest listed city is Villagrán, 14 km away.

Topography around Juventino Rosas

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

Within 3 km, the terrain around Juventino Rosas has only modest variations in elevation — a maximum elevation change of 78 m around an average of 1,760 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 599 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,425 m.

The land around Juventino Rosas is covered by cropland (63%) within 3 km, cropland (48%), shrubs (22%) and grassland (20%) within 16 km, and cropland (36%) and shrubs (31%) within 80 km.

3 km
78 m
16 km
599 m
80 km
1,425 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Villagrán 14 km · Cortazar 18 km · Salamanca 23 km · Celaya 23 km · Comonfort 26 km · Jaral del Progreso 31 km · Apaseo el Grande 34 km · Valle de Santiago 35 km

Mexico travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B
120 / 127 V · 60 Hz
Prices
≈ 54% of US
price level, 2025
GDP per capita
$13,889
2025
Happiness
7.0 / 10
World Happiness, 2025
Safe drinking water
43%
of population, 2024
Homicide rate
24.9
per 100k, 2023
Road deaths
12.8
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very low
EF EPI 440
Religion
Catholic 78%no religion 11%other Evangelical Churches 8%Jehovah Witness 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 Juventino Rosas (20.6435°, -100.9952°, elevation 1,787 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).