Zapotlanejo weather in September

In September, Zapotlanejo sees average daytime highs of 26°C and overnight lows near 17°C, with 137 mm of rain across 19.7 wet days and about 12.1 hours of daylight. It is the 7th-warmest and 3rd-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 15% of the time in September, and the air most often feels humid.

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 Zapotlanejo's 12th-clearest and 10th-windiest month. For the whole year in context, see Zapotlanejo's year-round climate.

Daytime high
26°
7th warmest
Overnight low
17°
8th coldest
Rainfall
137 mm
19.7 wet days
Daylight
12 h 06 min
6:43 AM – 6:50 PM
Cloud cover
70%
12th clearest
Wind
6 km/h
10th windiest
Solar energy
5.32 kWh/m²
Travel score
5.1
out of 10

Zapotlanejo is municipal seat of Zapotlanejo, State of Jalisco, Mexico.

Density
3,597/km²
people per km²
Founded
1532

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 Zapotlanejo reaches about 26°C in the afternoon and slips back to 17°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 28°C. Set against its neighbours, September runs on par with August and on par with October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12618
22618
32618
42618
52618
62618
72618
82618
92618
102618
112618
122618
132618
142618
152618
162617
172617
182617
192617
202617
212617
222617
232617
242617
252617
262617
272617
282617
292617
302617

Zapotlanejo weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 11°161.910.98.4
Feb25° / 13°111.611.38.7
Mar27° / 14°7111.98.4
Apr29° / 16°41.112.56.9
May30° / 18°204.6135.8
Jun29° / 19°12318.713.24.6
Jul26° / 18°17625.313.14.3
Aug26° / 18°15523.912.74.5
Sep26° / 17°13719.712.15.1
Oct26° / 16°458.311.57.1
Nov25° / 14°122.2118.7
Dec23° / 12°51.210.88.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% 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 65%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12971
23070
32971
42971
52971
63070
73070
83169
93268
103268
113268
123466
133466
143565
153664
163664
173664
183664
193664
203664
213664
223664
233763
243763
253961
263961
274060
284060
294159
304159

Chance of precipitation in September

Any precipitation

Zapotlanejo gets around 137 mm of rain over 19.7 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 64% and peaks near 79% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
179
278
378
478
577
676
776
875
973
1072
1171
1270
1368
1467
1566
1665
1763
1862
1961
2060
2158
2257
2355
2454
2552
2651
2750
2848
2947
3046

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 73% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1114841
2114841
3114841
4114841
5115831
6116821
7117811
8118801
9119791
10120781
11220771
12221761
13222751
14222751
15223741
16224731
17224731
18225721
19325711
20326701
21426691
22426691
23527671
24627661
25827641
26928621
271028611
281129591
291229581
301230571

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 5 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
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

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 6:40 AM to 6:47 AM, and sunset from 7:04 PM to 6:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:407:04
212.46:407:03
312.46:407:03
412.46:407:02
512.36:417:01
612.36:417:00
712.36:416:59
812.36:416:58
912.36:416:57
1012.26:426:56
1112.26:426:55
1212.26:426:54
1312.26:426:53
1412.26:436:52
1512.16:436:51
1612.16:436:50
1712.16:436:49
1812.16:446:48
1912.16:446:47
2012.06:446:46
2112.06:446:45
2212.06:456:44
2312.06:456:43
2412.06:456:42
2511.96:456:41
2611.96:466:40
2711.96:466:39
2811.96:466:38
2911.96:466:38
3011.86:476:37

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.32 kWh/m².

For context, solar energy here swings from a low near 4.77 kWh/m² to a high of 7.57 kWh/m² in April across the year — September's 5.32 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.4Bright
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 Zapotlanejo

In seasonPeak

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

Zapotlanejo'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 Zapotlanejo?

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

5.1
Sightseeing
9th-best month of the year
4.9
Beach & pool
10th-best month of the year

September is a reasonable time to visit Zapotlanejo for sightseeing.

What to pack for Zapotlanejo in September

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

In September, Zapotlanejo sees daytime highs around 26°C and nights near 17°C. Pack rain gear. Worth having: light clothes and sun protection. About 20 days see rain.

rain gearlight clothessun protection

UV index in Zapotlanejo in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

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

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highMay 13UV 13Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun13Extreme
Jul13Extreme
Aug13Extreme
Sep12Extreme
Oct10Very high
Nov8Very high
Dec7High

Air quality in Zapotlanejo 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 Zapotlanejo is worst in May — around 32 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (July, 15 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateMay 1032 µg/m³Jul 2015 µg/m³
PM2.5 (µg/m³)Level
Jan22Moderate
Feb20Moderate
Mar21Moderate
Apr31Moderate
May32Moderate
Jun17Moderate
Jul15Moderate
Aug16Moderate
Sep18Moderate
Oct18Moderate
Nov20Moderate
Dec25Moderate
Location & terrain

Where is Zapotlanejo?

Zapotlanejo sits at 20.6°N, 103.1°W, 1,524 m above sea level, in Mexico. The nearest listed city is Coyula, 17 km away.

Topography around Zapotlanejo

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

Within 3 km, the terrain around Zapotlanejo has significant variations in elevation — a maximum elevation change of 310 m around an average of 1,541 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,209 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,328 m.

The land around Zapotlanejo is covered by cropland (40%), grassland (26%) and artificial surfaces (22%) within 3 km, cropland (37%), grassland (26%) and trees (22%) within 16 km, and cropland (27%), trees (25%) and grassland (20%) within 80 km.

3 km
310 m
16 km
1,209 m
80 km
2,328 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Coyula 17 km · Tonalá 18 km · San José del Castillo 21 km · Tlaquepaque 24 km · San José del Quince 24 km · Las Pintitas 25 km · Las Pintas de Arriba 27 km · Guadalajara 30 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 Zapotlanejo (20.6227°, -103.0681°, elevation 1,524 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).