San Cristóbal de las Casas weather in July

In July, San Cristóbal de las Casas sees average daytime highs of 25°C and overnight lows near 16°C, with 300 mm of rain across 21.6 wet days and about 12.9 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 10% of the time in July, and the air most often feels humid.

Daylight stretches from about 13 hours at the start of July to 12 h 48 min by month's end. Set against the rest of the year, July is San Cristóbal de las Casas's 9th-clearest and 9th-windiest month. For the whole year in context, see San Cristóbal de las Casas's year-round climate.

Daytime high
25°
5th warmest
Overnight low
16°
8th coldest
Rainfall
300 mm
21.6 wet days
Daylight
12 h 54 min
5:49 AM – 6:43 PM
Cloud cover
76%
9th clearest
Wind
4 km/h
9th windiest
Solar energy
5.85 kWh/m²
Travel score
4.8
out of 10

San Cristóbal de las Casas is municipal seat of San Cristóbal, State of Chiapas, Mexico.

Founded
1528

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 25°C through the month.

A typical July day in San Cristóbal de las Casas reaches about 25°C in the afternoon and slips back to 16°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 27°C. Set against its neighbours, July runs on par with June and on par with August.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12516
22516
32516
42516
52516
62516
72516
82516
92516
102516
112516
122516
132516
142516
152516
162516
172516
182516
192516
202516
212516
222616
232616
242616
252616
262616
272616
282616
292616
302616
312616

San Cristóbal de las Casas weather by month

How July compares with the rest of the year at a glance. July is the 5th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 12°122.611.18.6
Feb26° / 13°71.711.48.5
Mar27° / 14°183.711.97.8
Apr28° / 15°508.612.46.7
May27° / 16°22319.212.85.1
Jun25° / 16°48625.7134.1
Jul25° / 16°30021.612.94.8
Aug25° / 16°36323.212.64.6
Sep25° / 16°42926.312.14.1
Oct24° / 15°23018.111.65.5
Nov24° / 14°587.911.27.5
Dec24° / 13°182.6118.5

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 13% of July, with mostly cloudy or overcast conditions the remaining 77%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11684
21684
31783
41882
51882
61981
71981
82080
92080
102179
112278
122278
132278
142377
152377
162377
172377
182476
192575
202575
212674
222674
232773
242773
252872
262872
272872
282872
292872
302872
312872

Chance of precipitation in July

Any precipitation

San Cristóbal de las Casas gets around 300 mm of rain over 21.6 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 70% and peaks near 79% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
179
278
377
476
575
674
773
872
972
1071
1171
1270
1370
1470
1569
1669
1769
1869
1969
2068
2168
2268
2368
2468
2567
2667
2767
2867
2967
3067
3167

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the humid band about 65% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1123751
2125731
3126721
4227701
5228691
6229690
7230680
8231670
9231661
10232651
11232651
12233641
13233650
14234640
15234640
16135640
17135640
18135640
19136630
20136630
21137620
22137620
23138610
24138610
25138610
26138610
27138610
28137620
29137611
30137611
31136621

Wind in July

Winds average 4 km/h in July.

Across July, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 13 hours at the start of July to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over July. Sunrise moves from 5:44 AM to 5:54 AM, and sunset from 6:43 PM to 6:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:446:43
213.05:456:44
313.05:456:44
413.05:456:44
513.05:456:44
613.05:466:44
713.05:466:44
813.05:466:44
913.05:476:44
1012.95:476:44
1112.95:476:44
1212.95:486:44
1312.95:486:44
1412.95:486:44
1512.95:496:44
1612.95:496:43
1712.95:496:43
1812.95:506:43
1912.95:506:43
2012.95:506:43
2112.95:516:43
2212.95:516:42
2312.95:516:42
2412.85:516:42
2512.85:526:42
2612.85:526:41
2712.85:526:41
2812.85:536:41
2912.85:536:40
3012.85:536:40
3112.85:546:40

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.85 kWh/m².

For context, solar energy here swings from a low near 4.57 kWh/m² to a high of 6.65 kWh/m² in April across the year — July's 5.85 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.6Bright
55.6Bright
65.6Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
226.0Bright
236.0Bright
246.0Bright
256.0Bright
266.0Bright
276.0Bright
286.0Bright
296.0Bright
306.0Bright
316.0Bright
Planning a trip in July

Hazard calendar for San Cristóbal de las Casas

In seasonPeak

In July, San Cristóbal de las Casas sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

San Cristóbal de las Casas'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 July a good time to visit San Cristóbal de las Casas?

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

4.8
Sightseeing
9th-best month of the year
4.4
Beach & pool
9th-best month of the year

July is a reasonable time to visit San Cristóbal de las Casas for sightseeing.

What to pack for San Cristóbal de las Casas in July

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

In July, San Cristóbal de las Casas sees daytime highs around 25°C and nights near 16°C. Pack rain gear. Worth having: light clothes and sun protection. About 22 days see rain.

rain gearlight clothessun protection

UV index in San Cristóbal de las Casas in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in San Cristóbal de las Casas peaks around April 12 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 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 12UV 14Dec 17UV 8
UV index (midday)Level
Jan9Very high
Feb13Extreme
Mar14Extreme
Apr14Extreme
May11Extreme
Jun14Extreme
Jul13Extreme
Aug13Extreme
Sep13Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in San Cristóbal de las Casas in July

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in San Cristóbal de las Casas is worst in April — around 38 µg/m³ PM2.5 (poor), about 3.1× the cleanest month (December, 12 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateApr 2337 µg/m³Dec 1612 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb21Moderate
Mar27Moderate
Apr38Poor
May37Poor
Jun21Moderate
Jul24Moderate
Aug20Moderate
Sep19Moderate
Oct15Moderate
Nov13Moderate
Dec12Moderate
Location & terrain

Where is San Cristóbal de las Casas?

San Cristóbal de las Casas sits at 16.7°N, 92.6°W, 2,183 m above sea level, in Mexico. The nearest listed city is Teopisca, 27 km away.

Topography around San Cristóbal de las Casas

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Cristóbal de las Casas.

Within 3 km, the terrain around San Cristóbal de las Casas has significant variations in elevation — a maximum elevation change of 392 m around an average of 2,158 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,344 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,842 m.

The land around San Cristóbal de las Casas is covered by artificial surfaces (60%) and trees (26%) within 3 km, trees (58%) and grassland (30%) within 16 km, and trees (62%) and grassland (27%) within 80 km.

3 km
392 m
16 km
2,344 m
80 km
2,842 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Teopisca 27 km · Chiapas 40 km · Venustiano Carranza 44 km · Las Rosas 50 km · Suchiapa 50 km · Tuxtla 51 km · Yajalón 59 km · Ocosingo 61 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 San Cristóbal de las Casas (16.7301°, -92.6382°, elevation 2,183 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).