El Rosario weather in October

In October, El Rosario sees average daytime highs of 30°C and overnight lows near 21°C, with 92 mm of rain across 11.3 wet days and about 11.5 hours of daylight. It is the 6th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 46% 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 h 12 min by month's end. Set against the rest of the year, October is El Rosario's 8th-clearest and 9th-windiest month. For the whole year in context, see El Rosario's year-round climate.

Daytime high
30°
6th warmest
Overnight low
21°
8th coldest
Rainfall
92 mm
11.3 wet days
Daylight
11 h 30 min
6:05 AM – 5:32 PM
Cloud cover
46%
8th clearest
Wind
4 km/h
9th windiest
Solar energy
4.92 kWh/m²
Travel score
5.0
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical October day in El Rosario reaches about 30°C in the afternoon and slips back to 21°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°C. Set against its neighbours, October runs on par with September and about 1°C warmer than November.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13023
23022
33022
43022
53022
63022
73022
83022
93022
103022
113022
123022
133021
143021
153021
163021
173021
183021
193021
203021
213020
223020
233020
243020
253020
263020
273019
283019
293019
303019
313019

How October really feels in El Rosario

Once humidity and wind are folded in, October averages 28 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
28
heat index over the day's high
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.

El Rosario weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 13°202.110.78.1
Feb27° / 13°191.411.28.1
Mar29° / 14°50.611.87.4
Apr30° / 16°10.212.56.3
May32° / 19°30.513.15.2
Jun32° / 23°709.313.44.1
Jul31° / 23°2362413.33.0
Aug30° / 23°28126.112.82.9
Sep30° / 23°24424.312.13.2
Oct30° / 21°9211.311.55.0
Nov29° / 17°302.610.96.9
Dec27° / 14°182.310.68.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 21% of October, with mostly cloudy or overcast conditions the remaining 33%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14654
24852
34951
45149
55347
65545
75644
85743
95941
106139
116337
126535
136634
146832
156832
167030
177129
187228
197426
207426
217624
227723
237723
247822
257822
267822
277723
287723
297723
307723
317624

Chance of precipitation in October

Any precipitation

El Rosario gets around 92 mm of rain over 11.3 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 36% and peaks near 62% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
162
260
358
456
554
652
750
848
946
1044
1142
1241
1339
1437
1535
1634
1732
1831
1930
2029
2127
2226
2325
2424
2523
2622
2721
2820
2919
3018
3117

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 61% of days. Sticky, muggy-or-worse air turns up on roughly 96% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
100025543
200025741
300025939
400036037
500036235
600046333
700046531
800056629
900066628
1000076726
1100186724
1200196822
13001106920
14001117018
15001127116
16002137015
17012156913
18012166912
19013186711
20013206610
2101322668
2201425637
2301428616
2401530586
2502632555
2612734524
2712737503
2812839473
2913941442
30131043422
31131045391

Wind in October

Winds average 4 km/h in October.

Across October, daily wind ranges from about 4 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in October

DaylightNight

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

Days shrink by about 36 minutes over October. Sunrise moves from 5:59 AM to 6:12 AM, and sunset from 5:46 PM to 5:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:595:46
211.85:595:45
311.75:595:44
411.76:005:43
511.76:005:42
611.76:015:41
711.76:015:40
811.66:015:39
911.66:025:38
1011.66:025:37
1111.66:035:37
1211.56:035:36
1311.56:035:35
1411.56:045:34
1511.56:045:33
1611.56:055:32
1711.46:055:31
1811.46:065:31
1911.46:065:30
2011.46:075:29
2111.46:075:28
2211.36:085:27
2311.36:085:27
2411.36:095:26
2511.36:095:25
2611.26:105:25
2711.26:105:24
2811.26:115:23
2911.26:115:23
3011.26:125:22
3111.26:125:21

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.92 kWh/m².

For context, solar energy here swings from a low near 4.33 kWh/m² to a high of 7.68 kWh/m² in May across the year — October's 4.92 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.9Bright
164.9Bright
174.9Bright
184.9Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in October

Hazard calendar for El Rosario

In seasonPeak

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

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

El Rosario's monsoon runs July–September, when most of the year's rain falls.

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

Is October a good time to visit El Rosario?

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

5.0
Sightseeing
8th-best month of the year
6.9
Beach & pool
8th-best month of the year

October is a reasonable time to visit El Rosario for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for El Rosario in October

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

In October, El Rosario sees daytime highs around 30°C and nights near 21°C. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near El Rosario in October

The nearest coast averages about 30°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 31 km away) is warmest in August at about 30°C and coldest in March near 23°C.

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

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan24Refreshing
Feb23Refreshing
Mar23Refreshing
Apr23Refreshing
May26Warm
Jun28Warm
Jul29Tropical
Aug30Tropical
Sep30Tropical
Oct30Tropical
Nov28Warm
Dec25Warm

UV index in El Rosario in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in El Rosario peaks around May 17 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighMay 17UV 12Dec 20UV 6
UV index (midday)Level
Jan6High
Feb9Very high
Mar10Extreme
Apr12Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep11Extreme
Oct8Very high
Nov6High
Dec6High

Air quality in El Rosario 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 El Rosario is worst in May — around 22 µg/m³ PM2.5 (moderate), about 3.8× the cleanest month (January, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMay 1821 µg/m³Jan 166 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb6Good
Mar7Good
Apr11Good
May22Moderate
Jun14Moderate
Jul8Good
Aug8Good
Sep9Good
Oct8Good
Nov7Good
Dec6Good
Location & terrain

Where is El Rosario?

El Rosario sits at 23.0°N, 105.9°W, 33 m above sea level, in Mexico. The nearest listed city is Escuinapa de Hidalgo, 19 km away.

Topography around El Rosario

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

Within 3 km, the terrain around El Rosario has only modest variations in elevation — a maximum elevation change of 222 m around an average of 42 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 915 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,912 m.

The land around El Rosario is covered by trees (43%) and cropland (25%) within 3 km, trees (68%) within 16 km, and trees (59%) and water (25%) within 80 km.

3 km
222 m
16 km
915 m
80 km
2,912 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwatermangroves
October weather nearby: Escuinapa de Hidalgo 19 km · Mazatlan 63 km · Pueblo Nuevo 66 km · Acaponeta 75 km · El Salto 101 km · Tuxpan 130 km · Santiago Ixcuintla 147 km · La Cruz 148 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 El Rosario (22.9903°, -105.8542°, elevation 33 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).