Guamúchil weather in October

In October, Guamúchil sees average daytime highs of 35°C and overnight lows near 21°C, with 35 mm of rain across 4 wet days and about 11.4 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 35°C through the month. The sky is clear or mostly clear about 74% of the time in October, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of October to 11 hours by month's end. Set against the rest of the year, October is Guamúchil's 2nd-clearest and 10th-windiest month. For the whole year in context, see Guamúchil's year-round climate.

Daytime high
35°
4th warmest
Overnight low
21°
8th coldest
Rainfall
35 mm
4 wet days
Daylight
11 h 24 min
6:16 AM – 5:39 PM
Cloud cover
25%
2nd clearest
Wind
6 km/h
10th windiest
Solar energy
5.36 kWh/m²
Travel score
3.1
out of 10

Guamúchil is municipal seat of Salvador Alvarado, State of Sinaloa, Mexico.

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 35°C through the month.

A typical October day in Guamúchil reaches about 35°C in the afternoon and slips back to 21°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 38°C. Set against its neighbours, October runs about 1°C warmer than September and about 3°C warmer than November.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13524
23524
33523
43523
53523
63523
73523
83523
93523
103523
113522
123522
133522
143522
153522
163522
173521
183521
193521
203521
213521
223521
233520
243520
253520
263520
273420
283419
293419
303419
313419

How October really feels in Guamúchil

Once humidity and wind are folded in, October averages 31 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
31
11 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

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

Guamúchil weather by month

How October compares with the rest of the year at a glance. October is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 12°191.910.67.8
Feb29° / 13°161.811.16.7
Mar31° / 14°40.611.85.5
Apr34° / 16°10.312.63.9
May36° / 19°10.313.22.6
Jun37° / 24°152.813.62.0
Jul35° / 25°13015.213.42.0
Aug34° / 25°16617.512.92.3
Sep34° / 25°1311412.22.7
Oct35° / 21°35411.43.1
Nov32° / 16°442.210.85.1
Dec28° / 13°222.110.47.4

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 74% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 10% of October, with mostly cloudy or overcast conditions the remaining 16%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17822
27822
38020
48020
58020
68218
78218
88218
98317
108317
118416
128515
138515
148515
158515
168515
178614
188614
198614
208614
218614
228614
238614
248614
258614
268416
278416
288416
298317
308317
318119

Chance of precipitation in October

Any precipitation

Guamúchil gets around 35 mm of rain over 4 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 13% and peaks near 24% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
124
223
322
421
520
619
718
817
916
1015
1114
1213
1312
1411
1511
1610
1710
189
199
209
219
229
239
249
259
269
279
289
299
309
318

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the oppressive band about 29% of days. Sticky, muggy-or-worse air turns up on roughly 70% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
101393255
2013103452
3014113548
4125123644
5126123841
6126133938
7137144035
8138164031
9149174128
101411184126
111512194023
122513204020
132614223918
142715233815
152717243613
163818253412
173819273310
18392028319
19492129288
204102230267
215112331246
225122432225
236132532204
247142632183
257152632172
268162731152
279172831141
2810182930121
2911192929111
3012202928100
311421302690

Wind in October

Winds average 6 km/h in October.

Across October, 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.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in October

DaylightNight

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

Days shrink by about 48 minutes over October. Sunrise moves from 6:08 AM to 6:24 AM, and sunset from 5:54 PM to 5:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:085:54
211.76:095:53
311.76:095:52
411.76:105:51
511.76:105:50
611.66:115:49
711.66:115:48
811.66:125:47
911.66:125:46
1011.56:135:45
1111.56:135:44
1211.56:145:43
1311.56:145:42
1411.46:155:41
1511.46:155:40
1611.46:165:39
1711.46:165:38
1811.36:175:37
1911.36:175:36
2011.36:185:36
2111.36:185:35
2211.26:195:34
2311.26:205:33
2411.26:205:32
2511.26:215:31
2611.26:215:31
2711.16:225:30
2811.16:235:29
2911.16:235:29
3011.16:245:28
3111.06:245:27

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.36 kWh/m².

For context, solar energy here swings from a low near 4.08 kWh/m² to a high of 7.92 kWh/m² in May across the year — October's 5.36 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.1Bright
285.1Bright
295.1Bright
305.0Bright
315.0Bright
Planning a trip in October

Hazard calendar for Guamúchil

In seasonPeak

In October, Guamúchil sits inside its pacific hurricane season. The full year is below, with each hazard's peak months called out.

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

Guamúchil's rainy season runs July–September, when most of the year's rain falls.

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

Is October a good time to visit Guamúchil?

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

3.1
Sightseeing
7th-best month of the year
6.7
Beach & pool
7th-best month of the year

October is a weaker month for outdoor sightseeing in Guamúchil. The water and warmth also suit a beach or pool day.

What to pack for Guamúchil in October

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

In October, Guamúchil sees daytime highs around 35°C and nights near 21°C. Pack light clothes. Worth having: sun protection. About 4 days see rain.

light clothessun protection

Sea temperature near Guamúchil in October

The nearest coast averages about 29°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 48 km away) is warmest in August at about 30°C and coldest in February near 20°C.

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

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan20Refreshing
Feb20Refreshing
Mar20Refreshing
Apr22Refreshing
May25Warm
Jun28Warm
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov26Warm
Dec22Refreshing

UV index in Guamúchil in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Guamúchil peaks around July 17 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighJul 17UV 12Dec 19UV 5
UV index (midday)Level
Jan6High
Feb7High
Mar9Very high
Apr11Extreme
May12Extreme
Jun11Extreme
Jul12Extreme
Aug11Extreme
Sep10Extreme
Oct8Very high
Nov6High
Dec5Moderate

Air quality in Guamúchil in October

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Guamúchil is worst in May — around 20 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (January, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMay 1919 µg/m³Jan 148 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar10Good
Apr11Good
May20Moderate
Jun16Moderate
Jul14Moderate
Aug11Good
Sep11Good
Oct10Good
Nov9Good
Dec8Good
Location & terrain

Where is Guamúchil?

Guamúchil sits at 25.5°N, 108.1°W, 46 m above sea level, in Mexico. The nearest listed city is Guasave, 41 km away.

Topography around Guamúchil

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

Within 3 km, the terrain around Guamúchil has only modest variations in elevation — a maximum elevation change of 118 m around an average of 54 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 615 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,277 m.

The land around Guamúchil is covered by artificial surfaces (41%) within 3 km, cropland (56%) within 16 km, and trees (37%) and cropland (27%) within 80 km.

3 km
118 m
16 km
615 m
80 km
2,277 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwatermangroves
October weather nearby: Guasave 41 km · Gabriel Leyva Solano 60 km · Juan José Ríos 82 km · Navolato 86 km · Los Mochis 99 km · Culiacán 100 km · Licenciado Benito Juárez 104 km · Costa Rica 119 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 Guamúchil (25.4587°, -108.0773°, elevation 46 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).