Francisco I. Madero weather in May

In May, Francisco I. Madero sees average daytime highs of 36°C and overnight lows near 21°C, with 7 mm of rain across 1.6 wet days and about 13.2 hours of daylight. It is the 2nd-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 35°C in the first days to 37°C by the end. The sky is clear or mostly clear about 74% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 hours at the start of May to 13 h 30 min by month's end. Set against the rest of the year, May is Francisco I. Madero's 1st-clearest and 4th-windiest month. For the whole year in context, see Francisco I. Madero's year-round climate.

Daytime high
36°
2nd warmest
Overnight low
21°
9th coldest
Rainfall
7 mm
1.6 wet days
Daylight
13 h 18 min
6:12 AM – 7:27 PM
Cloud cover
27%
1st clearest
Wind
11 km/h
4th windiest
Solar energy
7.95 kWh/m²
Travel score
2.8
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 35°C in the first days to 37°C by the end.

A typical May day in Francisco I. Madero reaches about 36°C in the afternoon and slips back to 21°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 39°C. Set against its neighbours, May runs about 3°C warmer than April and on par with June.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13420
23420
33520
43520
53520
63520
73520
83520
93521
103521
113521
123521
133521
143521
153621
163621
173621
183621
193622
203622
213622
223622
233622
243622
253622
263622
273622
283723
293723
303723
313723

How May really feels in Francisco I. Madero

Once humidity and wind are folded in, May averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Francisco I. Madero weather by month

How May compares with the rest of the year at a glance. May is the 2nd-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan22° / 91.510.68.4
Feb25° / 11°5111.18.5
Mar29° / 14°71.311.87.1
Apr33° / 18°20.712.64.6
May36° / 21°71.613.22.8
Jun36° / 23°163.213.62.3
Jul35° / 24°274.813.42.8
Aug35° / 23°203.712.93.1
Sep33° / 21°345.312.24.2
Oct30° / 18°162.511.46.1
Nov26° / 13°81.610.78.5
Dec23° / 71.410.48.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 74% of the time in May, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 12% of May, with mostly cloudy or overcast conditions the remaining 14%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17822
27921
38020
48020
58020
68119
78218
88218
98218
108317
118317
128416
138515
148614
158614
168713
178713
188812
198911
208911
219010
229010
23919
24919
25928
26928
27928
28937
29937
30937
31937

Chance of precipitation in May

Any precipitation

Francisco I. Madero gets around 7 mm of rain over 1.6 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 5% and peaks near 8% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
13
23
32
42
52
63
73
83
94
104
114
125
135
145
156
166
176
186
197
207
217
227
237
247
257
267
278
288
298
308
318

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 80% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
192800
292800
392800
491900
591900
690910
7891010
8891010
9881110
10871210
11871210
12861310
13851410
14841510
15831610
16821710
17811810
18791920
19782020
20772120
21762220
22752320
23732430
24722530
25722530
26702640
27692641
28682651
29672751
30662761
31652771

Wind in May

Winds average 11 km/h in May.

Across May, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 hours at the start of May to 13 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over May. Sunrise moves from 6:22 AM to 6:06 AM, and sunset from 7:19 PM to 7:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.06:227:19
213.06:217:20
313.06:207:20
413.06:197:21
513.06:197:21
613.16:187:22
713.16:177:22
813.16:167:23
913.16:167:23
1013.16:157:24
1113.26:157:24
1213.26:147:25
1313.26:137:25
1413.26:137:26
1513.26:127:26
1613.36:127:27
1713.36:117:28
1813.36:117:28
1913.36:107:29
2013.36:107:29
2113.36:097:30
2213.46:097:30
2313.46:097:31
2413.46:087:31
2513.46:087:32
2613.46:077:32
2713.46:077:33
2813.46:077:33
2913.56:077:34
3013.56:067:34
3113.56:067:35

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.95 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.16 kWh/m² to a high of 7.95 kWh/m² in May across the year — May's 7.95 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.8Intense
27.8Intense
37.8Intense
47.8Intense
57.9Intense
67.9Intense
77.9Intense
87.9Intense
97.9Intense
107.9Intense
117.9Intense
127.9Intense
137.9Intense
148.0Intense
158.0Intense
168.0Intense
178.0Intense
188.0Intense
198.0Intense
208.0Intense
218.0Intense
228.0Intense
238.0Intense
248.0Intense
258.0Intense
268.0Intense
278.0Intense
288.0Intense
298.0Intense
308.0Intense
318.0Intense
Planning a trip in May

Is May a good time to visit Francisco I. Madero?

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

2.8
Sightseeing
10th-best month of the year
6.5
Beach & pool
8th-best month of the year

May is a weaker month for outdoor sightseeing in Francisco I. Madero. The water and warmth also suit a beach or pool day.

What to pack for Francisco I. Madero in May

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

In May, Francisco I. Madero sees daytime highs around 36°C and nights near 21°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Francisco I. Madero in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Francisco I. Madero peaks around July 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighJul 12UV 13Dec 18UV 5
UV index (midday)Level
Jan6High
Feb8Very high
Mar10Extreme
Apr12Extreme
May13Extreme
Jun13Extreme
Jul13Extreme
Aug12Extreme
Sep11Extreme
Oct8Very high
Nov6High
Dec5High
Location & terrain

Where is Francisco I. Madero?

Francisco I. Madero sits at 25.8°N, 103.3°W, 1,112 m above sea level, in Mexico. The nearest listed city is Matamoros, 28 km away.

Topography around Francisco I. Madero

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Francisco I. Madero.

Within 3 km, the terrain around Francisco I. Madero has only modest variations in elevation — a maximum elevation change of 10 m around an average of 1,108 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 592 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,276 m.

The land around Francisco I. Madero is covered by cropland (42%) and artificial surfaces (24%) within 3 km, cropland (49%) and shrubs (25%) within 16 km, and shrubs (60%) and bare terrain (30%) within 80 km.

3 km
10 m
16 km
592 m
80 km
2,276 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
May weather nearby: Matamoros 28 km · San Pedro 29 km · Torreón 29 km · Gómez Palacio 32 km · Lerdo 37 km · Parras de la Fuente 116 km · Juan Aldama 165 km · Guadalupe Victoria 171 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 Francisco I. Madero (25.773°, -103.2713°, elevation 1,112 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).