Las Rosas weather in May

In May, Las Rosas sees average daytime highs of 28°C and overnight lows near 18°C, with 154 mm of rain across 16.8 wet days and about 12.8 hours of daylight. It is the 3rd-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 29°C in the first days to 27°C by the end. The sky is clear or mostly clear about 19% of the time in May, and the air most often feels humid.

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 Las Rosas's 7th-clearest and 9th-windiest month. For the whole year in context, see Las Rosas's year-round climate.

Daytime high
28°
3rd warmest
Overnight low
18°
11th coldest
Rainfall
154 mm
16.8 wet days
Daylight
12 h 48 min
5:43 AM – 6:29 PM
Cloud cover
64%
7th clearest
Wind
5 km/h
9th windiest
Solar energy
6.12 kWh/m²
Travel score
5.0
out of 10

Las Rosas is municipal seat of Las Rosas, State of Chiapas, 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 27°C by the end.

A typical May day in Las Rosas reaches about 28°C in the afternoon and slips back to 18°C overnight — a 11°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.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12917
22917
32917
42917
52917
62917
72917
82917
92917
102917
112918
122918
132918
142818
152818
162818
172818
182818
192818
202818
212818
222818
232818
242718
252718
262718
272718
282718
292718
302718
312718

Las Rosas weather by month

How May compares with the rest of the year at a glance. May is the 3rd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 14°71.211.18.9
Feb27° / 14°30.511.58.7
Mar29° / 15°9211.97.5
Apr29° / 17°356.112.46.0
May28° / 18°15416.812.85.0
Jun26° / 18°28822.7134.5
Jul27° / 17°12813.812.95.7
Aug27° / 17°22217.412.55.2
Sep26° / 17°35523.812.14.3
Oct25° / 17°2181811.65.5
Nov25° / 15°426.411.27.7
Dec25° / 14°101.8118.7

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 24% of May, with mostly cloudy or overcast conditions the remaining 57%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16535
26436
36238
46139
55941
65743
75545
85446
95248
105050
114951
124753
134654
144456
154357
164258
174060
183862
193862
203664
213565
223466
233367
243169
253070
262971
272872
282674
292476
302476
312377

Chance of precipitation in May

Any precipitation

Las Rosas gets around 154 mm of rain over 16.8 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 55% and peaks near 74% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
134
235
336
437
539
640
742
843
944
1046
1148
1250
1351
1453
1555
1656
1758
1859
1960
2061
2162
2263
2364
2465
2566
2667
2769
2870
2971
3073
3174

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the humid 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 (%)Muggy (%)
12446300
22345320
32245330
42145340
52044351
61844371
71744381
81644391
91543401
101442422
111341432
121241443
131240463
141139474
151038494
16937504
17835525
18834535
19733555
20632575
21630595
22629596
23528616
24527626
25425656
26424657
27423667
28322678
29320698
30319699
31218719

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
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

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 5:49 AM to 5:40 AM, and sunset from 6:24 PM to 6:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:496:24
212.65:496:24
312.65:486:25
412.65:486:25
512.65:476:25
612.65:476:25
712.75:466:26
812.75:466:26
912.75:456:26
1012.75:456:27
1112.75:456:27
1212.75:446:27
1312.75:446:28
1412.75:446:28
1512.85:436:28
1612.85:436:29
1712.85:436:29
1812.85:426:29
1912.85:426:30
2012.85:426:30
2112.85:426:30
2212.85:416:31
2312.85:416:31
2412.85:416:31
2512.85:416:32
2612.95:416:32
2712.95:406:32
2812.95:406:33
2912.95:406:33
3012.95:406:33
3112.95:406:34

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.12 kWh/m².

For context, solar energy here swings from a low near 4.79 kWh/m² to a high of 6.81 kWh/m² in April across the year — May's 6.12 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.7Intense
26.6Intense
36.6Intense
46.6Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.4Intense
106.4Intense
116.3Intense
126.3Intense
136.2Intense
146.2Intense
156.2Intense
166.1Intense
176.1Intense
186.0Intense
196.0Bright
206.0Bright
215.9Bright
225.9Bright
235.8Bright
245.8Bright
255.7Bright
265.7Bright
275.6Bright
285.6Bright
295.5Bright
305.5Bright
315.4Bright
Planning a trip in May

Hazard calendar for Las Rosas

In seasonPeak

None of Las Rosas's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Las Rosas's monsoon runs August–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 Las Rosas?

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

5.0
Sightseeing
10th-best month of the year
5.8
Beach & pool
8th-best month of the year

May is a reasonable time to visit Las Rosas for sightseeing.

What to pack for Las Rosas in May

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

In May, Las Rosas sees daytime highs around 28°C and nights near 18°C. Pack light clothes, rain gear and sun protection. About 17 days see rain.

light clothesrain gearsun protection

UV index in Las Rosas 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 Las Rosas peaks around April 11 at about 14 (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 11UV 14Dec 15UV 9
UV index (midday)Level
Jan10Very high
Feb13Extreme
Mar14Extreme
Apr15Extreme
May11Extreme
Jun14Extreme
Jul13Extreme
Aug13Extreme
Sep13Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Las Rosas 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 Las Rosas is worst in April — around 57 µg/m³ PM2.5 (unhealthy), about 6.1× the cleanest month (December, 9 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModerateGoodApr 1955 µg/m³Dec 189 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb16Moderate
Mar33Moderate
Apr57Unhealthy
May45Poor
Jun19Moderate
Jul20Moderate
Aug17Moderate
Sep16Moderate
Oct13Moderate
Nov11Good
Dec9Good
Location & terrain

Where is Las Rosas?

Las Rosas sits at 16.4°N, 92.4°W, 1,312 m above sea level, in Mexico. The nearest listed city is Venustiano Carranza, 21 km away.

Topography around Las Rosas

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Las Rosas.

Within 3 km, the terrain around Las Rosas has large variations in elevation — a maximum elevation change of 775 m around an average of 1,397 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,897 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,499 m.

The land around Las Rosas is covered by trees (33%) and grassland (32%) within 3 km, trees (45%) and grassland (30%) within 16 km, and trees (60%) and grassland (26%) within 80 km.

3 km
775 m
16 km
1,897 m
80 km
2,499 m
treesshrubsgrasslandcroplandartificial surfaceswater
May weather nearby: Venustiano Carranza 21 km · Teopisca 22 km · Comitán 29 km · Las Margaritas 42 km · San Cristóbal de las Casas 50 km · Ocosingo 67 km · Chiapas 78 km · Comalapa 82 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 Las Rosas (16.3655°, -92.3706°, elevation 1,312 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).