Crucecita weather in September

In September, Crucecita sees average daytime highs of 28°C and overnight lows near 24°C, with 548 mm of rain across 27.2 wet days and about 12.1 hours of daylight. It is the 8th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 5% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 18 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Crucecita's 12th-clearest and 6th-windiest month. For the whole year in context, see Crucecita's year-round climate.

Daytime high
28°
8th warmest
Overnight low
24°
8th coldest
Rainfall
548 mm
27.2 wet days
Daylight
12 h 06 min
6:16 AM – 6:21 PM
Cloud cover
85%
12th clearest
Wind
7 km/h
6th windiest
Solar energy
4.53 kWh/m²
Travel score
3.6
out of 10

Crucecita is town in Huatulco Municipality, State of Oaxaca, 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 28°C through the month.

A typical September day in Crucecita reaches about 28°C in the afternoon and slips back to 24°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 29°C. Set against its neighbours, September runs on par with August and on par with October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12824
22824
32824
42824
52824
62824
72824
82824
92824
102824
112824
122824
132824
142824
152824
162824
172824
182824
192824
202824
212824
222824
232824
242824
252824
262824
272824
282724
292724
302724

How September really feels in Crucecita

Once humidity and wind are folded in, September 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

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

Crucecita weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 22°163.911.28.0
Feb28° / 22°123.211.57.8
Mar29° / 23°214.211.97.0
Apr29° / 24°306.112.36.2
May29° / 25°15718.512.74.5
Jun28° / 24°45024.812.93.7
Jul28° / 25°28225.812.83.6
Aug28° / 25°34927.112.53.6
Sep28° / 24°54827.212.13.6
Oct28° / 24°44325.711.64.1
Nov28° / 23°11313.911.36.1
Dec27° / 22°245.511.17.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 7% of September, with mostly cloudy or overcast conditions the remaining 89%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11585
21486
31387
41387
51387
61387
71387
81288
91288
101189
111189
121189
131189
141189
151090
16991
17991
18991
19991
20991
21991
221090
231090
241090
251189
261288
271387
281387
291585
301684

Chance of precipitation in September

Any precipitation

Crucecita gets around 548 mm of rain over 27.2 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 91% and peaks near 93% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
189
289
389
489
589
689
789
889
989
1089
1189
1289
1390
1490
1590
1691
1791
1891
1992
2092
2192
2293
2393
2493
2593
2693
2792
2892
2991
3091

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 99% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
11981
21981
31981
41981
51981
61990
71990
81990
91990
101990
111990
121990
131990
141990
151990
161990
171990
181990
191990
201990
211990
221990
231990
241990
251990
261990
271990
281990
292971
302971

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 18 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over September. Sunrise moves from 6:15 AM to 6:18 AM, and sunset from 6:34 PM to 6:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:156:34
212.36:156:33
312.36:156:32
412.36:156:31
512.36:156:30
612.26:156:30
712.26:156:29
812.26:166:28
912.26:166:27
1012.26:166:26
1112.26:166:26
1212.16:166:25
1312.16:166:24
1412.16:166:23
1512.16:166:22
1612.16:166:21
1712.16:166:21
1812.16:166:20
1912.06:166:19
2012.06:176:18
2112.06:176:17
2212.06:176:17
2312.06:176:16
2412.06:176:15
2512.06:176:14
2611.96:176:13
2711.96:176:12
2811.96:176:12
2911.96:176:11
3011.96:186:10

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.53 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.53 kWh/m² to a high of 6.91 kWh/m² in April across the year — September's 4.53 kWh/m² sits near the bottom.

024151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.6Bright
154.6Bright
164.6Bright
174.5Bright
184.5Bright
194.5Bright
204.5Bright
214.4Bright
224.4Bright
234.4Bright
244.4Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.3Bright
304.3Bright
Planning a trip in September

Hazard calendar for Crucecita

In seasonPeak

In September, Crucecita sits inside its pacific hurricane and monsoon season. The full year is below, with each hazard's peak months called out.

Crucecita sits in the eastern Pacific hurricane zone; the season peaks August–September.

Crucecita's monsoon runs June–October, when most of the year's rain falls.

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

Is September a good time to visit Crucecita?

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

3.6
Sightseeing
10th-best month of the year
3.9
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Crucecita.

What to pack for Crucecita in September

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

In September, Crucecita sees daytime highs around 28°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.

light clothesrain gearsun protection

Sea temperature near Crucecita in September

The nearest coast averages about 30°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 16 km away) is warmest in July at about 30°C and coldest in January near 27°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar28Warm
Apr28Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Crucecita 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 Crucecita peaks around August 18 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 18UV 12Dec 17UV 8
UV index (midday)Level
Jan8Very high
Feb11Extreme
Mar12Extreme
Apr12Extreme
May12Extreme
Jun12Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov8Very high
Dec8Very high

Air quality in Crucecita 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 Crucecita is worst in July — around 25 µg/m³ PM2.5 (moderate), about 4.0× the cleanest month (February, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1825 µg/m³Feb 96 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb6Good
Mar9Good
Apr15Moderate
May21Moderate
Jun17Moderate
Jul25Moderate
Aug19Moderate
Sep15Moderate
Oct10Good
Nov8Good
Dec7Good
Location & terrain

Where is Crucecita?

Crucecita sits at 15.8°N, 96.1°W, 37 m above sea level, in Mexico. The nearest listed city is Miahuatlán de Porfirio Díaz, 79 km away.

Topography around Crucecita

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

Within 3 km, the terrain around Crucecita has only modest variations in elevation — a maximum elevation change of 157 m around an average of 57 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 897 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,707 m.

The land around Crucecita is covered by trees (65%) within 3 km, trees (52%) and water (39%) within 16 km, and trees (49%) and water (36%) within 80 km.

3 km
157 m
16 km
897 m
80 km
3,707 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Miahuatlán de Porfirio Díaz 79 km · Puerto Escondido 100 km · Salina Cruz 110 km · Santo Domingo Tehuantepec 114 km · Ocotlán de Morelos 128 km · Heroica Ciudad de Juchitán de Zaragoza 140 km · Ixtepec 141 km · San Antonio de la Cal 153 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 Crucecita (15.7689°, -96.135°, elevation 37 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).