Ozumba de Alzate weather in May

In May, Ozumba de Alzate sees average daytime highs of 23°C and overnight lows near 11°C, with 268 mm of rain across 22.3 wet days and about 12.9 hours of daylight. It is the 2nd-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 19% of the time in May, and the air most often feels dry.

Daylight stretches from about 12 h 42 min at the start of May to 13 h 06 min by month's end. Set against the rest of the year, May is Ozumba de Alzate's 7th-clearest and 8th-windiest month. For the whole year in context, see Ozumba de Alzate's year-round climate.

Daytime high
23°
2nd warmest
Overnight low
11°
9th coldest
Rainfall
268 mm
22.3 wet days
Daylight
12 h 54 min
6:05 AM – 6:58 PM
Cloud cover
62%
7th clearest
Wind
5 km/h
8th windiest
Solar energy
6.78 kWh/m²
Travel score
5.0
out of 10

Ozumba de Alzate is municipal seat of Ozumba, State of México, Mexico.

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 23°C through the month.

A typical May day in Ozumba de Alzate reaches about 23°C in the afternoon and slips back to 11°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 26°C. Set against its neighbours, May runs on par with April and about 1°C warmer than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12311
22311
32311
42311
52311
62311
72311
82311
92311
102311
112311
122311
132311
142311
152311
162311
172311
182311
192311
202311
212311
222311
232311
242311
252311
262311
272311
282311
292311
302311
312311

Ozumba de Alzate 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
Jan19° / 153.3117.6
Feb21° / 173.711.47.9
Mar22° / 356.711.97.7
Apr23° / 10°8611.412.46.8
May23° / 11°26822.312.95.0
Jun22° / 12°40626.313.14.0
Jul22° / 11°34727.2133.9
Aug22° / 11°38727.712.63.9
Sep21° / 11°41326.512.13.8
Oct21° / 10°16518.511.65.2
Nov20° / 488.911.16.8
Dec19° / 112.510.97.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 23% of May, with mostly cloudy or overcast conditions the remaining 58%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24951
34852
44753
54654
64654
74456
84456
94258
104258
114159
124060
134060
144060
154159
164159
174258
184159
194159
204159
214159
224159
234159
244159
254060
264060
273961
283961
293763
303664
313565

Chance of precipitation in May

Any precipitation

Ozumba de Alzate gets around 268 mm of rain over 22.3 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 71% and peaks near 80% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
156
258
359
461
562
664
765
866
968
1069
1170
1271
1371
1472
1572
1673
1773
1874
1974
2075
2175
2276
2376
2476
2577
2677
2777
2878
2978
3079
3180

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 90% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1982
2982
3982
4973
5973
6964
7964
8955
9955
10946
11946
12937
13937
14928
15919
16919
179010
189010
198911
208812
218812
228713
238614
248614
258515
268416
278416
288218
298119
308020
317822

Wind in May

Winds average 5 km/h in May.

Across May, 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
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 42 min at the start of May to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over May. Sunrise moves from 6:12 AM to 6:01 AM, and sunset from 6:53 PM to 7:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.76:126:53
212.76:116:53
312.76:116:54
412.76:106:54
512.76:106:54
612.86:096:55
712.86:096:55
812.86:086:55
912.86:086:56
1012.86:076:56
1112.86:076:56
1212.86:066:57
1312.96:066:57
1412.96:056:58
1512.96:056:58
1612.96:056:58
1712.96:046:59
1812.96:046:59
1912.96:046:59
2012.96:037:00
2113.06:037:00
2213.06:037:01
2313.06:027:01
2413.06:027:01
2513.06:027:02
2613.06:027:02
2713.06:027:03
2813.06:017:03
2913.06:017:03
3013.06:017:04
3113.16:017:04

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.78 kWh/m².

For context, solar energy here swings from a low near 5.07 kWh/m² to a high of 7.08 kWh/m² in April across the year — May's 6.78 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
17.0Intense
27.0Intense
37.0Intense
47.0Intense
56.9Intense
66.9Intense
76.9Intense
86.9Intense
96.9Intense
106.8Intense
116.8Intense
126.8Intense
136.8Intense
146.8Intense
156.8Intense
166.8Intense
176.8Intense
186.8Intense
196.8Intense
206.7Intense
216.7Intense
226.7Intense
236.7Intense
246.7Intense
256.6Intense
266.6Intense
276.6Intense
286.6Intense
296.5Intense
306.5Intense
316.5Intense
Planning a trip in May

Hazard calendar for Ozumba de Alzate

In seasonPeak

In May, Ozumba de Alzate sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Ozumba de Alzate's monsoon runs May–September, when most of the year's rain falls.

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

Is May a good time to visit Ozumba de Alzate?

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

5.0
Sightseeing
8th-best month of the year
3.9
Beach & pool
4th-best month of the year

May is a reasonable time to visit Ozumba de Alzate for sightseeing.

What to pack for Ozumba de Alzate in May

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

In May, Ozumba de Alzate sees daytime highs around 23°C and nights near 11°C. Pack rain gear and sun protection. Worth having: light clothes. About 22 days see rain.

rain gearsun protectionlight clothes

UV index in Ozumba de Alzate in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ozumba de Alzate peaks around April 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highApr 10UV 15Dec 14UV 8
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar14Extreme
Apr15Extreme
May11Extreme
Jun14Extreme
Jul12Extreme
Aug14Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Ozumba de Alzate 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 Ozumba de Alzate is worst in November — around 103 µg/m³ PM2.5 (unhealthy), about 1.8× the cleanest month (April, 57 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyNov 21103 µg/m³Apr 957 µg/m³
PM2.5 (µg/m³)Level
Jan79Unhealthy
Feb70Unhealthy
Mar58Unhealthy
Apr57Unhealthy
May78Unhealthy
Jun69Unhealthy
Jul69Unhealthy
Aug70Unhealthy
Sep82Unhealthy
Oct90Unhealthy
Nov103Unhealthy
Dec101Unhealthy
Location & terrain

Where is Ozumba de Alzate?

Ozumba de Alzate sits at 19.0°N, 98.8°W, 2,342 m above sea level, in Mexico. The nearest listed city is Amecameca, 10 km away.

Topography around Ozumba de Alzate

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

Within 3 km, the terrain around Ozumba de Alzate has only modest variations in elevation — a maximum elevation change of 210 m around an average of 2,350 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,867 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,675 m.

The land around Ozumba de Alzate is covered by cropland (43%), trees (27%) and artificial surfaces (24%) within 3 km, trees (49%) and cropland (34%) within 16 km, and trees (36%) and cropland (23%) within 80 km.

3 km
210 m
16 km
2,867 m
80 km
4,675 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
May weather nearby: Amecameca 10 km · Juchitepec 11 km · Yecapixtla 19 km · San Rafael 20 km · San Mateo Huitzilzingo 25 km · San Martín Cuautlalpan 27 km · Chalco 27 km · San Antonio Tecómitl 29 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 Ozumba de Alzate (19.0369°, -98.7952°, elevation 2,342 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).