Climate and average weather in Ocotlán de Morelos

In Ocotlán de Morelos, the weather is hot, wet, and mostly clear and remarkably steady, with daytime highs holding near hot levels all year. The wettest stretch peaks around September.

Best: late October to late March

Over the course of the year, the temperature in Ocotlán de Morelos typically varies from 10°C to 29°C, and is rarely below 7°C or above 32°C. April is the hottest month of the year, while January is the coldest.

Based on the travel score, the best time of year to visit Ocotlán de Morelos for warm-weather activities is from late October to late March.

Hottest
Apr
29°
Coldest
Jan
10°
Wettest
Sep
156 mm
Driest
Jan
2 mm
Rain / yr
742 mm
96 wet days
Daylight
11.0–13.0 h
shortest–longest
Elevation
1,523 m
16.8°N
Clearest
Feb
25% cloud

Ocotlán de Morelos weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around late October to late March.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Ocotlán de Morelos, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

Temperatures in Ocotlán de Morelos stay fairly even through the year, without a distinct hot or cool season. The warmest month is April, with an average high of 29°C and low of 13°C; the coolest is January, with an average low of 10°C and high of 25°C.

Days typically run about 14°C warmer than nights, with the widest day–night swing (around 17°C) in March.

10°15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2510
Feb2710
Mar2812
Apr2913
May2815
Jun2615
Jul2614
Aug2614
Sep2515
Oct2513
Nov2511
Dec2510

Average hourly temperature in Ocotlán de Morelos

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on April afternoons, near 29°C, and coldest before dawn in January, near 10°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Ocotlán de Morelos weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 10°20.811.18.9
Feb27° / 10°30.811.48.6
Mar28° / 12°122.311.97.6
Apr29° / 13°254.412.46.3
May28° / 15°8310.412.85.8
Jun26° / 15°15517135.3
Jul26° / 14°9514.412.95.8
Aug26° / 14°1151512.65.7
Sep25° / 15°15618.312.15.2
Oct25° / 13°819.511.66.8
Nov25° / 11°121.911.28.4
Dec25° / 10°30.7118.9

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Ocotlán de Morelos gets about 742 mm of precipitation a year. On a typical day the chance of rain is some rain, but that rises and falls sharply with the seasons.

The wetter season lasts 5.5 months, from around May 6 to Oct 19, peaking in September at about 61% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Dec 8.

September is the wettest month by volume, with 156 mm over about 18 wet days; January is the driest, with 2 mm.

0%10%20%30%40%50%60%70%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetSep 7 · 61%Dec 8 · 1%
Rain on a day (%)Rain days
Jan31
Feb31
Mar72
Apr164
May3410
Jun5517
Jul4714
Aug4915
Sep5918
Oct3110
Nov72
Dec21

Monthly rainfall

Over a full year, Ocotlán de Morelos collects about 742 mm of rain across 96 wet days — roughly 62 mm in an average month.

It doesn’t fall evenly. September is the wettest month with 156 mm, while January is the driest at just 2 mm. The three wettest months alone bring about 57% of the year’s total.

0255075100125150175200JanFebMarAprMayJunJulAugSepOctNovDec231225831559511515681123
Rainfall (mm)Rain days
Jan21
Feb31
Mar122
Apr254
May8310
Jun15517
Jul9514
Aug11515
Sep15618
Oct8110
Nov122
Dec31

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Ocotlán de Morelos, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around October 30 and lasts for 6.3 months, ending around May 10. The clearest month is February, when the sky is clear, mostly clear, or partly cloudy 88% of the time on average.

The cloudier part of the year begins around May 11 and lasts for 5.7 months, ending around October 29. The cloudiest month is September, when it is overcast or mostly cloudy 83% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecFeb 19 · 90%Sep 16 · 15%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan8416
Feb8812
Mar8416
Apr7822
May5248
Jun2575
Jul2872
Aug2674
Sep1783
Oct4060
Nov7327
Dec8317

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around June 5, brings about 13 hours of light; the shortest, around January 1, only 11 hours — a swing of roughly 2 hours.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan11.17:036:09
Feb11.46:586:24
Mar11.96:406:33
Apr12.46:166:38
May12.85:596:46
Jun13.05:576:57
Jul12.96:057:00
Aug12.66:146:48
Sep12.16:186:24
Oct11.66:236:00
Nov11.26:365:48
Dec11.06:535:53

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Ocotlán de Morelos averages about 12 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 1 and 24 days.

The sunnier stretch runs 6.0 months, from around Nov 1 to May 1. The sunniest month is February, with roughly 23 sunny days (brilliant).

The greyest month is September, down near 2 sunny days — about 92% fewer than the February peak.

051015202530JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedbrightbrilliantFeb 2224 daysSep 101 days
Sunny daysSky
Jan22Bright
Feb21Brilliant
Mar21Bright
Apr16Bright
May8Mixed
Jun3Gloomy
Jul3Gloomy
Aug3Gloomy
Sep2Gloomy
Oct7Gloomy
Nov17Bright
Dec21Bright

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Ocotlán de Morelos, how humid it feels changes noticeably over the year.

The more humid part of the year lasts 1.9 months, from around May 15 to July 11. The muggiest month is June, when the air feels humid, muggy or worse about 18% of the time.

The most comfortable stretch runs from around October 22 to May 14, and November is the most comfortable month — the air is dry or comfortable 100% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecNov 20 · 100%Jun 15 · 79%humidcomfortabledrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)
Jan10000
Feb9910
Mar9640
Apr84150
May51427
Jun176518
Jul22726
Aug236710
Sep116920
Oct414910
Nov83170
Dec9820

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Wind in Ocotlán de Morelos is steady company: average speeds sit near 6 km/hcalm — in every month of the year, with no meaningful windy or calm season.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeFeb 21 · 7 km/hSep 11 · 5 km/h
Wind speed (km/h)Feels
Jan7calm
Feb7calm
Mar7calm
Apr7calm
May6calm
Jun5calm
Jul6calm
Aug6calm
Sep5calm
Oct6calm
Nov7calm
Dec7calm

Hazard calendar for Ocotlán de Morelos

In seasonPeak

When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.

Ocotlán de Morelos's rainy season runs May–October, when most of the year's rain falls.

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

Best time to visit Ocotlán de Morelos

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Ocotlán de Morelos throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around early November, Ocotlán de Morelos is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Ocotlán de Morelos for general outdoor tourist activities is from late October to late March, with a peak score in the second week of January.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationJan 10 · 9.1

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan8.9ideal
Feb8.6ideal
Mar7.6ideal
Apr6.3good
May5.8good
Jun5.4fair
Jul5.8good
Aug5.7good
Sep5.3fair
Oct6.8good
Nov8.4ideal
Dec8.9ideal

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Ocotlán de Morelos for hot-weather activities is from late October to mid May, with a peak score in the last week of February.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationFeb 26 · 8.7

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Ocotlán de Morelos, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

Ocotlán de Morelos packs about the same all year — highs hold near 29°C. Across the year the things worth having are light clothes and sun protection.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In April, Ocotlán de Morelos sees daytime highs around 29°C and nights near 13°C. Pack light clothes and sun protection. About 4 days see rain.

UV index (midday) in Ocotlán de Morelos by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in Ocotlán de Morelos peaks around April 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highApr 13UV 15Dec 15UV 9
UV index (midday)Level
Jan10Very high
Feb13Extreme
Mar14Extreme
Apr15Extreme
May12Extreme
Jun13Extreme
Jul13Extreme
Aug14Extreme
Sep13Extreme
Oct12Extreme
Nov9Very high
Dec9Very high

Average hourly UV index in Ocotlán de Morelos

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in April the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 6.5 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan75
Feb7.56
Mar86.5
Apr8.56.5
May8.56.5
Jun8.56.5
Jul8.56.5
Aug8.57
Sep86
Oct7.55.5
Nov74.5
Dec6.54

Air quality in Ocotlán de Morelos by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.

Air quality in Ocotlán de Morelos is worst in May — around 27 µg/m³ PM2.5 (moderate), about 3.8× the cleanest month (January, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMay 1626 µg/m³Jan 137 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar10Good
Apr19Moderate
May27Moderate
Jun17Moderate
Jul20Moderate
Aug16Moderate
Sep15Moderate
Oct12Good
Nov9Good
Dec8Good
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Ocotlán de Morelos is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Ocotlán de Morelos banks about 3,460 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around May.

01,0002,0003,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan225
Feb237
Mar308
Apr339
May357
Jun315
Jul304
Aug313
Sep293
Oct287
Nov251
Dec233

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Ocotlán de Morelos receives about 5.8 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.9 and 7.2 kWh/m².

The brighter stretch of the year lasts 4.0 months, from around Feb 4 to Jun 4. The brightest month is April, averaging about 7.1 kWh/m² (intense).

The dimmest month is September, down near 5.1 kWh/m² — roughly 29% less than the April peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseApr 127.2 kWhSep 274.9 kWh
Solar energy (kWh/m²)Level
Jan5.4Bright
Feb6.2Intense
Mar6.9Intense
Apr7.2Intense
May6.6Intense
Jun5.5Bright
Jul5.9Bright
Aug5.7Bright
Sep5.0Bright
Oct5.2Bright
Nov5.3Bright
Dec5.2Bright

Where is Ocotlán de Morelos?

Ocotlán de Morelos sits at 16.8°N, 96.7°W, 1,523 m above sea level, in Mexico. The nearest listed city is San Antonio de la Cal, 27 km away.

Topography around Ocotlán de Morelos

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

Within 3 km, the terrain around Ocotlán de Morelos has only modest variations in elevation — a maximum elevation change of 165 m around an average of 1,514 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,122 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,164 m.

The land around Ocotlán de Morelos is covered by cropland (53%) within 3 km, grassland (32%) and cropland (30%) within 16 km, and trees (65%) within 80 km.

3 km
165 m
16 km
1,122 m
80 km
3,164 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
Nearby: San Antonio de la Cal 27 km · Santa Cruz Xoxocotlán 27 km · Oaxaca 30 km · Santa María Atzompa 36 km · Miahuatlán de Porfirio Díaz 52 km · Puerto Escondido 112 km · Heroica Ciudad de Tlaxiaco 119 km · Crucecita 128 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 Ocotlán de Morelos (16.7918°, -96.675°, elevation 1,523 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).