Heroica Caborca weather in September

In September, Heroica Caborca sees average daytime highs of 37°C and overnight lows near 25°C, with 29 mm of rain across 4.8 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 38°C in the first days to 36°C by the end. The sky is clear or mostly clear about 82% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 42 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Heroica Caborca's 5th-clearest and 7th-windiest month. For the whole year in context, see Heroica Caborca's year-round climate.

Daytime high
37°
4th warmest
Overnight low
25°
10th coldest
Rainfall
29 mm
4.8 wet days
Daylight
12 h 12 min
6:17 AM – 6:28 PM
Cloud cover
22%
5th clearest
Wind
10 km/h
7th windiest
Solar energy
6.11 kWh/m²
Travel score
1.8
out of 10

Heroica Caborca is municipal seat of Caborca, State of Sonora, Mexico.

Founded
1688

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 38°C in the first days to 36°C by the end.

A typical September day in Heroica Caborca reaches about 37°C in the afternoon and slips back to 25°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 33°C and 41°C. Set against its neighbours, September runs about 2°C cooler than August and about 5°C warmer than October.

20°30°40°151015202530
Avg high (°C)Avg low (°C)
13827
23827
33827
43827
53827
63826
73826
83826
93826
103826
113826
123826
133726
143726
153725
163725
173725
183725
193725
203725
213724
223724
233724
243724
253624
263623
273623
283623
293623
303623

How September really feels in Heroica Caborca

Once humidity and wind are folded in, September averages 30 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
30
9 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Heroica Caborca weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan22° / 162.110.28.5
Feb24° / 182.810.98.5
Mar27° / 12°111.811.88.3
Apr30° / 15°30.612.76.5
May34° / 19°10.313.54.0
Jun38° / 24°20.613.91.1
Jul39° / 28°23613.80.4
Aug39° / 28°368.513.10.7
Sep37° / 25°294.812.21.8
Oct33° / 19°131.511.24.9
Nov27° / 12°101.410.48.3
Dec22° / 203108.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 82% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 8% of September, with mostly cloudy or overcast conditions the remaining 10%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18515
28713
38713
48713
58911
68911
79010
8919
9919
10919
11919
12919
13928
14928
15928
16928
17928
18919
19919
20919
21919
22919
23919
24919
25919
26919
279010
28919
29919
30919

Chance of precipitation in September

Any precipitation

Heroica Caborca gets around 29 mm of rain over 4.8 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 17% and peaks near 28% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
128
227
327
426
525
624
723
822
921
1020
1120
1219
1318
1417
1516
1615
1714
1813
1912
2012
2111
2211
2310
2410
2510
269
279
289
299
308

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 26% of days. Sticky, muggy-or-worse air turns up on roughly 42% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11081529352
21081629352
31181629342
41181629332
51291629322
61391629312
714101728292
815111728282
916121728262
1017121728241
1118131827231
1219141826211
1321151825201
1422161924181
1523171923171
1625171922152
1727181921142
1828181920132
1930191819132
2032191818122
2133191817112
2235191716112
2337191716102
2438191715101
254018161591
264218161481
274418161481
284518151371
294818151361
305018141251

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 10 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
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 42 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over September. Sunrise moves from 6:09 AM to 6:26 AM, and sunset from 6:48 PM to 6:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.76:096:48
212.66:096:47
312.66:106:45
412.66:106:44
512.56:116:43
612.56:126:42
712.56:126:40
812.46:136:39
912.46:136:38
1012.46:146:36
1112.36:156:35
1212.36:156:34
1312.36:166:32
1412.26:166:31
1512.26:176:30
1612.26:176:28
1712.26:186:27
1812.16:196:26
1912.16:196:24
2012.16:206:23
2112.06:206:22
2212.06:216:20
2312.06:226:19
2411.96:226:18
2511.96:236:17
2611.96:236:15
2711.86:246:14
2811.86:256:13
2911.86:256:11
3011.76:266:10

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.11 kWh/m².

For context, solar energy here swings from a low near 3.58 kWh/m² to a high of 8.38 kWh/m² in June across the year — September's 6.11 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.4Intense
26.3Intense
36.3Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.3Intense
96.2Intense
106.2Intense
116.2Intense
126.2Intense
136.2Intense
146.2Intense
156.1Intense
166.1Intense
176.1Intense
186.1Intense
196.1Intense
206.0Intense
216.0Intense
226.0Bright
236.0Bright
246.0Bright
255.9Bright
265.9Bright
275.9Bright
285.9Bright
295.8Bright
305.8Bright
Planning a trip in September

Is September a good time to visit Heroica Caborca?

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

1.8
Sightseeing
9th-best month of the year
5.1
Beach & pool
9th-best month of the year

September is a weaker month for outdoor sightseeing in Heroica Caborca.

What to pack for Heroica Caborca in September

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

In September, Heroica Caborca sees daytime highs around 37°C and nights near 25°C. Pack light clothes and sun protection. About 5 days see rain.

light clothessun protection

UV index in Heroica Caborca 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 Heroica Caborca peaks around June 22 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 22UV 11Dec 19UV 4
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar6High
Apr9Very high
May9Very high
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep9Very high
Oct7High
Nov5Moderate
Dec4Moderate

Air quality in Heroica Caborca 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 Heroica Caborca is worst in January — around 24 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (September, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateJan 1522 µg/m³Sep 198 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb11Good
Mar9Good
Apr10Good
May9Good
Jun10Good
Jul10Good
Aug9Good
Sep8Good
Oct8Good
Nov10Good
Dec15Moderate
Location & terrain

Where is Heroica Caborca?

Heroica Caborca sits at 30.7°N, 112.2°W, 288 m above sea level, in Mexico. The nearest listed city is Magdalena de Kino, 115 km away.

SahuaritaCananea

Topography around Heroica Caborca

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

Within 3 km, the terrain around Heroica Caborca has only modest variations in elevation — a maximum elevation change of 105 m around an average of 289 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 469 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,615 m.

The land around Heroica Caborca is covered by artificial surfaces (46%) and bare terrain (44%) within 3 km, bare terrain (50%) and shrubs (41%) within 16 km, and shrubs (68%) and bare terrain (28%) within 80 km.

3 km
105 m
16 km
469 m
80 km
1,615 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Magdalena de Kino 115 km · Nogales 133 km · Nogales 136 km · Rio Rico 140 km · Puerto Peñasco 147 km · Green Valley 168 km · Sahuarita 179 km · Cananea 180 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 Heroica Caborca (30.7183°, -112.1584°, elevation 288 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).