Ocotlán de Morelos weather in May

In May, Ocotlán de Morelos sees average daytime highs of 28°C and overnight lows near 15°C, with 83 mm of rain across 10.4 wet days and about 12.8 hours of daylight. It is the 2nd-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 29°C in the first days to 28°C by the end. The sky is clear or mostly clear about 27% of the time in May, and the air most often feels dry.

Daylight stretches from about 12 h 36 min at the start of May to 12 h 54 min by month's end. Set against the rest of the year, May is Ocotlán de Morelos's 7th-clearest and 8th-windiest month. For the whole year in context, see Ocotlán de Morelos's year-round climate.

Daytime high
28°
2nd warmest
Overnight low
15°
11th coldest
Rainfall
83 mm
10.4 wet days
Daylight
12 h 48 min
5:59 AM – 6:46 PM
Cloud cover
58%
7th clearest
Wind
6 km/h
8th windiest
Solar energy
6.56 kWh/m²
Travel score
5.8
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 29°C in the first days to 28°C by the end.

A typical May day in Ocotlán de Morelos reaches about 28°C in the afternoon and slips back to 15°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 31°C. Set against its neighbours, May runs about 1°C cooler than April and about 2°C warmer than June.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12914
22914
32914
42914
52914
62914
72914
82914
92915
102915
112915
122915
132915
142915
152815
162815
172815
182815
192815
202815
212815
222815
232815
242815
252815
262815
272815
282815
292815
302815
312715

Ocotlán de Morelos weather by month

How May compares with the rest of the year at a glance. May is the 2nd-warmest and 5th-wettest month here — the current month is highlighted below.

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

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 25% of May, with mostly cloudy or overcast conditions the remaining 48%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16832
26634
36634
46436
56337
66139
76040
85842
95842
105644
115545
125446
135347
145347
155248
165149
175149
185149
195050
205050
214951
224852
234852
244753
254753
264555
274456
284258
294159
303961
313862

Chance of precipitation in May

Any precipitation

Ocotlán de Morelos gets around 83 mm of rain over 10.4 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 33% and peaks near 46% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
122
223
324
425
525
626
727
828
929
1030
1131
1231
1332
1432
1533
1634
1734
1835
1935
2036
2136
2237
2338
2438
2539
2640
2741
2842
2943
3045
3146

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 51% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
175241
274251
372271
470282
568302
667312
764333
863343
960364
1058384
1156395
1254415
1352426
1451436
1549446
1648457
1747467
1846477
1945487
2044498
2143498
2242508
2341518
2440519
2539529
26385210
27375310
28365311
29355312
30335413
31325414

Wind in May

Winds average 6 km/h in May.

Across May, 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
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
295calm
305calm
315calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 36 min at the start of May to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over May. Sunrise moves from 6:06 AM to 5:56 AM, and sunset from 6:42 PM to 6:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.66:066:42
212.66:056:42
312.66:056:42
412.66:046:43
512.76:046:43
612.76:036:43
712.76:036:44
812.76:036:44
912.76:026:44
1012.76:026:44
1112.76:016:45
1212.76:016:45
1312.76:006:45
1412.86:006:46
1512.86:006:46
1612.85:596:46
1712.85:596:47
1812.85:596:47
1912.85:596:47
2012.85:586:48
2112.85:586:48
2212.85:586:49
2312.95:586:49
2412.95:576:49
2512.95:576:50
2612.95:576:50
2712.95:576:50
2812.95:576:51
2912.95:576:51
3012.95:576:51
3112.95:566:52

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.56 kWh/m².

For context, solar energy here swings from a low near 5 kWh/m² to a high of 7.16 kWh/m² in April across the year — May's 6.56 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
17.0Intense
27.0Intense
36.9Intense
46.9Intense
56.9Intense
66.8Intense
76.8Intense
86.8Intense
96.8Intense
106.7Intense
116.7Intense
126.7Intense
136.6Intense
146.6Intense
156.6Intense
166.5Intense
176.5Intense
186.5Intense
196.5Intense
206.5Intense
216.4Intense
226.4Intense
236.3Intense
246.3Intense
256.3Intense
266.2Intense
276.2Intense
286.1Intense
296.1Intense
306.0Intense
316.0Bright
Planning a trip in May

Hazard calendar for Ocotlán de Morelos

In seasonPeak

In May, Ocotlán de Morelos sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

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

Is May a good time to visit Ocotlán de Morelos?

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

5.8
Sightseeing
8th-best month of the year
6.8
Beach & pool
7th-best month of the year

May is a reasonable time to visit Ocotlán de Morelos for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Ocotlán de Morelos in May

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

In May, Ocotlán de Morelos sees daytime highs around 28°C and nights near 15°C. Pack light clothes and sun protection. Worth having: rain gear. About 10 days see rain.

light clothessun protectionrain gear

UV index in Ocotlán de Morelos in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 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

Air quality in Ocotlán de Morelos in May

GoodModeratePoorUnhealthyVery unhealthy

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

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
May weather 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).