Atoyac de Álvarez weather in May

In May, Atoyac de Álvarez sees average daytime highs of 30°C and overnight lows near 22°C, with 63 mm of rain across 8.7 wet days and about 12.8 hours of daylight. It is the 1st-warmest and 7th-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 47% of the time in May, and the air most often feels muggy.

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 Atoyac de Álvarez's 7th-clearest and 3rd-windiest month. For the whole year in context, see Atoyac de Álvarez's year-round climate.

Daytime high
30°
1st warmest
Overnight low
22°
8th coldest
Rainfall
63 mm
8.7 wet days
Daylight
12 h 48 min
6:14 AM – 7:02 PM
Cloud cover
46%
7th clearest
Wind
6 km/h
3rd windiest
Solar energy
6.86 kWh/m²
Travel score
5.3
out of 10

Atoyac de Álvarez is municipal seat of Atoyac, State of Guerrero, 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 30°C through the month.

A typical May day in Atoyac de Álvarez reaches about 30°C in the afternoon and slips back to 22°C overnight — a 8°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, May runs on par with April and about 2°C warmer than June.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13021
23021
33022
43022
53022
63022
73022
83022
93022
103022
113022
123022
133022
143022
153022
163022
173022
183022
193022
203022
213022
223022
233023
243023
253023
263023
272923
282923
292923
302923
312923

Atoyac de Álvarez weather by month

How May compares with the rest of the year at a glance. May is the 1st-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 19°132.111.18.1
Feb28° / 19°91.311.47.9
Mar29° / 20°50.711.97.3
Apr30° / 21°10.412.46.6
May30° / 22°638.712.85.3
Jun28° / 23°29923.4133.8
Jul28° / 23°26723.712.93.8
Aug28° / 23°32426.312.63.6
Sep28° / 22°39527.912.13.5
Oct28° / 22°29226.911.63.9
Nov28° / 20°7113.611.26.0
Dec27° / 19°143.7117.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 18% of May, with mostly cloudy or overcast conditions the remaining 35%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17525
27525
37525
47327
57327
67327
77228
87228
97228
107129
117129
127129
137030
147030
157030
166931
176832
186733
196634
206535
216436
226238
236139
245842
255743
265545
275248
285149
294951
304753
314456

Chance of precipitation in May

Any precipitation

Atoyac de Álvarez gets around 63 mm of rain over 8.7 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 29% and peaks near 60% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
15
26
37
48
59
611
712
814
916
1017
1119
1221
1322
1424
1526
1627
1729
1831
1933
2035
2136
2238
2341
2443
2545
2648
2750
2852
2955
3057
3160

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the muggy band about 42% of days. Sticky, muggy-or-worse air turns up on roughly 66% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
131545352
231444363
331344383
431243394
521142405
621041415
721040426
82938437
92937449
1028364510
1128344511
1227334612
1317314714
1417294815
1516274817
1616254819
1716234821
1816224824
1915204726
2015184629
2115174632
2214154435
2314144338
2414134240
2514114143
2613104046
271393949
280383851
290273655
300263557
310263458

Wind in May

Winds average 6 km/h in May.

Across May, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
76calm
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 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 6:21 AM to 6:11 AM, and sunset from 6:57 PM to 7:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.66:216:57
212.66:206:58
312.66:196:58
412.76:196:58
512.76:186:58
612.76:186:59
712.76:176:59
812.76:176:59
912.76:177:00
1012.76:167:00
1112.76:167:00
1212.86:157:01
1312.86:157:01
1412.86:157:01
1512.86:147:02
1612.86:147:02
1712.86:147:02
1812.86:137:03
1912.86:137:03
2012.86:137:03
2112.96:127:04
2212.96:127:04
2312.96:127:05
2412.96:127:05
2512.96:127:05
2612.96:117:06
2712.96:117:06
2812.96:117:06
2912.96:117:07
3012.96:117:07
3112.96:117:07

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.86 kWh/m².

For context, solar energy here swings from a low near 4.71 kWh/m² to a high of 7.33 kWh/m² in April across the year — May's 6.86 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.3Intense
27.3Intense
37.3Intense
47.2Intense
57.2Intense
67.2Intense
77.2Intense
87.2Intense
97.1Intense
107.1Intense
117.1Intense
127.0Intense
137.0Intense
147.0Intense
156.9Intense
166.9Intense
176.9Intense
186.8Intense
196.8Intense
206.7Intense
216.7Intense
226.6Intense
236.6Intense
246.5Intense
256.5Intense
266.4Intense
276.3Intense
286.3Intense
296.2Intense
306.1Intense
316.1Intense
Planning a trip in May

Hazard calendar for Atoyac de Álvarez

In seasonPeak

In May, Atoyac de Álvarez sits inside its pacific hurricane season. The full year is below, with each hazard's peak months called out.

Atoyac de Álvarez sits in the eastern Pacific hurricane zone; the season peaks August–September.

Atoyac de Álvarez's monsoon runs June–October, when most of the year's rain falls.

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

Is May a good time to visit Atoyac de Álvarez?

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

5.3
Sightseeing
7th-best month of the year
7.2
Beach & pool
6th-best month of the year

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

What to pack for Atoyac de Álvarez in May

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

In May, Atoyac de Álvarez sees daytime highs around 30°C and nights near 22°C. Pack light clothes and sun protection. Worth having: rain gear. About 9 days see rain.

light clothessun protectionrain gear

Sea temperature near Atoyac de Álvarez in May

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

The sea at the nearest coast (about 22 km away) is warmest in August at about 30°C and coldest in April near 27°C.

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

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb28Warm
Mar27Warm
Apr27Warm
May29Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct30Tropical
Nov30Tropical
Dec29Tropical

UV index in Atoyac de Álvarez 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 Atoyac de Álvarez peaks around March 21 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highMar 21UV 13Dec 13UV 7
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar13Extreme
Apr12Extreme
May11Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep11Extreme
Oct10Very high
Nov8Very high
Dec7High

Air quality in Atoyac de Álvarez 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 Atoyac de Álvarez is worst in May — around 39 µg/m³ PM2.5 (poor), about 7.0× the cleanest month (February, 6 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodMay 1636 µg/m³Feb 136 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb6Good
Mar7Good
Apr17Moderate
May39Poor
Jun12Moderate
Jul14Moderate
Aug10Good
Sep9Good
Oct9Good
Nov7Good
Dec7Good
Location & terrain

Where is Atoyac de Álvarez?

Atoyac de Álvarez sits at 17.2°N, 100.4°W, 59 m above sea level, in Mexico. The nearest listed city is Técpan de Galeana, 21 km away.

Topography around Atoyac de Álvarez

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

Within 3 km, the terrain around Atoyac de Álvarez has significant variations in elevation — a maximum elevation change of 302 m around an average of 73 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,522 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,534 m.

The land around Atoyac de Álvarez is covered by grassland (38%) and trees (36%) within 3 km, trees (56%) and grassland (26%) within 16 km, and trees (55%) and water (29%) within 80 km.

3 km
302 m
16 km
1,522 m
80 km
3,534 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
May weather nearby: Técpan de Galeana 21 km · Acapulco 68 km · Petatlán 96 km · Chilpancingo 106 km · Zumpango del Río 108 km · Tixtla de Guerrero 117 km · Arcelia 125 km · Zihuatanejo 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 Atoyac de Álvarez (17.2067°, -100.4331°, elevation 59 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).