Ixtapan de la Sal weather in May

In May, Ixtapan de la Sal sees average daytime highs of 29°C and overnight lows near 15°C, with 115 mm of rain across 15 wet days and about 12.9 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 34% 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 hours by month's end. Set against the rest of the year, May is Ixtapan de la Sal's 7th-clearest and 5th-windiest month. For the whole year in context, see Ixtapan de la Sal's year-round climate.

Daytime high
29°
2nd warmest
Overnight low
15°
11th coldest
Rainfall
115 mm
15 wet days
Daylight
12 h 54 min
6:08 AM – 7:02 PM
Cloud cover
53%
7th clearest
Wind
5 km/h
5th windiest
Solar energy
7.08 kWh/m²
Travel score
5.1
out of 10

Ixtapan de la Sal is municipal seat of Ixtapan de la Sal, 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

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

A typical May day in Ixtapan de la Sal reaches about 29°C in the afternoon and slips back to 15°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 32°C. Set against its neighbours, May runs on par with April and about 3°C warmer than June.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13015
23015
33015
42915
52915
62915
72915
82915
92915
102915
112915
122915
132915
142915
152916
162916
172916
182916
192916
202916
212816
222816
232816
242816
252816
262816
272816
282816
292816
302816
312716

Ixtapan de la Sal 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
Jan24° / 10°152.3118.7
Feb26° / 11°122.211.48.5
Mar28° / 12°15311.97.8
Apr29° / 14°244.712.46.2
May29° / 15°1151512.95.1
Jun26° / 16°24725.113.14.2
Jul25° / 15°18623.3134.6
Aug25° / 15°22825.712.64.3
Sep25° / 15°23726.312.14.1
Oct25° / 14°1141911.65.4
Nov25° / 12°31711.17.7
Dec24° / 10°81.610.98.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% 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 42%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16832
26733
36634
46634
56535
66436
76436
86337
96238
106139
116139
126139
136139
146139
156139
166139
176139
186139
195941
205842
215743
225644
235545
245446
255347
265149
275050
284951
294753
304654
314456

Chance of precipitation in May

Any precipitation

Ixtapan de la Sal gets around 115 mm of rain over 15 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 48% and peaks near 70% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
125
227
328
430
531
633
735
837
938
1040
1142
1243
1345
1446
1547
1649
1750
1851
1953
2054
2156
2257
2359
2460
2562
2663
2765
2866
2967
3069
3170

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 60% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
188111
286131
385141
484151
582171
680191
779201
876222
974242
1073252
1171272
1268293
1367303
1465314
1563334
1661345
1759356
1857367
1955378
2053389
21513910
22484112
23454213
24434215
25414316
26384417
27364519
28344521
29324622
30304624
31274726

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 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
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
314calm

Sunrise & sunset in May

DaylightNight

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

Days grow by about 18 minutes over May. Sunrise moves from 6:16 AM to 6:05 AM, and sunset from 6:56 PM to 7:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.76:166:56
212.76:156:56
312.76:146:57
412.76:146:57
512.76:136:58
612.86:136:58
712.86:126:58
812.86:126:59
912.86:116:59
1012.86:116:59
1112.86:107:00
1212.86:107:00
1312.86:107:00
1412.96:097:01
1512.96:097:01
1612.96:087:02
1712.96:087:02
1812.96:087:02
1912.96:077:03
2012.96:077:03
2112.96:077:03
2213.06:077:04
2313.06:067:04
2413.06:067:05
2513.06:067:05
2613.06:067:05
2713.06:057:06
2813.06:057:06
2913.06:057:07
3013.06:057:07
3113.06:057:07

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.08 kWh/m².

For context, solar energy here swings from a low near 5.03 kWh/m² to a high of 7.47 kWh/m² in April across the year — May's 7.08 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.4Intense
27.4Intense
37.4Intense
47.4Intense
57.3Intense
67.3Intense
77.3Intense
87.3Intense
97.3Intense
107.2Intense
117.2Intense
127.2Intense
137.2Intense
147.2Intense
157.1Intense
167.1Intense
177.1Intense
187.0Intense
197.0Intense
207.0Intense
217.0Intense
226.9Intense
236.9Intense
246.8Intense
256.8Intense
266.7Intense
276.7Intense
286.7Intense
296.6Intense
306.5Intense
316.5Intense
Planning a trip in May

Hazard calendar for Ixtapan de la Sal

In seasonPeak

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

Ixtapan de la Sal's monsoon runs May–October, 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 Ixtapan de la Sal?

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

5.1
Sightseeing
8th-best month of the year
6.3
Beach & pool
7th-best month of the year

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

What to pack for Ixtapan de la Sal in May

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

In May, Ixtapan de la Sal sees daytime highs around 29°C and nights near 15°C. Pack light clothes, rain gear and sun protection. About 15 days see rain.

light clothesrain gearsun protection

UV index in Ixtapan de la Sal 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 Ixtapan de la Sal peaks around April 9 at about 14 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highApr 9UV 14Dec 14UV 8
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar14Extreme
Apr14Extreme
May12Extreme
Jun13Extreme
Jul12Extreme
Aug12Extreme
Sep11Extreme
Oct10Very high
Nov8Very high
Dec7Very high

Air quality in Ixtapan de la Sal 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 Ixtapan de la Sal is worst in November — around 50 µg/m³ PM2.5 (poor), about 2.1× the cleanest month (March, 24 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorModeratePoorNov 1150 µg/m³Mar 1725 µg/m³
PM2.5 (µg/m³)Level
Jan38Poor
Feb30Moderate
Mar24Moderate
Apr30Moderate
May42Poor
Jun33Moderate
Jul34Moderate
Aug36Poor
Sep43Poor
Oct49Poor
Nov50Poor
Dec47Poor
Location & terrain

Where is Ixtapan de la Sal?

Ixtapan de la Sal sits at 18.8°N, 99.7°W, 1,871 m above sea level, in Mexico. The nearest listed city is Tenango de Arista, 30 km away.

Topography around Ixtapan de la Sal

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ixtapan de la Sal.

Within 3 km, the terrain around Ixtapan de la Sal has significant variations in elevation — a maximum elevation change of 477 m around an average of 1,871 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,331 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,208 m.

The land around Ixtapan de la Sal is covered by trees (50%) and grassland (20%) within 3 km, trees (55%) within 16 km, and trees (48%) and shrubs (22%) within 80 km.

3 km
477 m
16 km
1,331 m
80 km
4,208 m
treesshrubsgrasslandcroplandartificial surfaceswater
May weather nearby: Tenango de Arista 30 km · Taxco de Alarcón 33 km · Santiago Tlacotepec 43 km · Capulhuac de Mirafuentes 45 km · Puente de Ixtla 46 km · San Jorge Pueblo Nuevo 46 km · Xalatlaco 46 km · Metepec 47 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 Ixtapan de la Sal (18.8437°, -99.6767°, elevation 1,871 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).