San Angelo weather in May

In May, San Angelo sees average daytime highs of 86°F and overnight lows near 63°F, with 3.4 in of rain across 10 wet days and about 13.6 hours of daylight. It is the 5th-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 83°F in the first days to 89°F by the end. The sky is clear or mostly clear about 50% of the time in May, and the air most often feels humid.

Daylight stretches from about 13 h 12 min at the start of May to 13 h 54 min by month's end. Set against the rest of the year, May is San Angelo's 10th-clearest and 2nd-windiest month. For the whole year in context, see San Angelo's year-round climate.

Daytime high
86°
5th warmest
Overnight low
63°
8th coldest
Rainfall
3.4 in
10 wet days
Daylight
13 h 36 min
5:50 AM – 7:26 PM
Cloud cover
45%
10th clearest
Wind
11 mph
2nd windiest
Solar energy
6.54 kWh/m²
Travel score
5.2
out of 10

San Angelo is city in and county seat of Tom Green County, Texas, United States.

Density
620/km²
people per km²

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 83°F in the first days to 89°F by the end.

A typical May day in San Angelo reaches about 86°F in the afternoon and slips back to 63°F overnight — a 23°F spread between the day's warmth and the night's chill. On most days the high lands between 76°F and 96°F. Set against its neighbours, May runs about 7°F warmer than April and about 6°F cooler than June.

40°60°80°100°151015202531
Avg high (°F)Avg low (°F)
18359
28359
38359
48360
58460
68460
78461
88461
98461
108562
118562
128562
138563
148663
158663
168664
178664
188764
198764
208765
218765
228865
238866
248866
258866
268966
278967
288967
298967
308967
319068

How May really feels in San Angelo

Once humidity and wind are folded in, May averages 1 day that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
1
heat index over the day's high
Days feeling ≤ 32°F
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.

San Angelo weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan59° / 36°1.14.10.610.25.4
Feb64° / 40°1.350.410.96.5
Mar71° / 47°1.95.8011.87.5
Apr79° / 55°2.15.9012.77.6
May86° / 63°3.410013.65.2
Jun92° / 71°2.37.60143.7
Jul95° / 73°1.35.4013.83.0
Aug94° / 73°1.66013.13.2
Sep87° / 66°2.16012.25.3
Oct78° / 56°2.36011.27.7
Nov67° / 45°1.44.30.210.47.3
Dec60° / 37°1.44.80.5105.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 35%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16634
26634
36535
46436
56436
66337
76337
86337
96337
106337
116337
126337
136337
146436
156436
166436
176535
186535
196535
206535
216535
226634
236634
246733
256733
266733
276832
286832
296832
306931
316931

Chance of precipitation in May

Any precipitation

San Angelo gets around 3.4 in of rain over 10 wet days in May, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 31% and peaks near 32% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
127
228
329
430
530
631
731
832
932
1032
1132
1232
1332
1431
1531
1631
1732
1832
1932
2032
2132
2232
2332
2432
2532
2632
2732
2832
2932
3032
3132

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 35% of days. Sticky, muggy-or-worse air turns up on roughly 11% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
160172030
258172230
356172430
452182640
551182740
648192940
746193040
844193250
942203350
1041203350
1139213460
1237223560
1336233570
1434233570
1533243580
1631243680
1730253690
18282537100
19262537110
20242637120
21232638130
22212638140
23192639150
24172640160
25162640170
26142641191
27132641201
28112542211
29102442221
30102442241
3192342251

Wind in May

Winds average 11 mph in May.

Across May, daily wind ranges from about 10 mph on the calmest days to 11 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
111light breeze
211light breeze
311light breeze
411light breeze
511light breeze
611light breeze
711light breeze
811light breeze
911light breeze
1011light breeze
1111light breeze
1211light breeze
1311light breeze
1411light breeze
1511light breeze
1611light breeze
1711light breeze
1811light breeze
1911light breeze
2011light breeze
2111light breeze
2211light breeze
2311light breeze
2411light breeze
2511light breeze
2611light breeze
2711light breeze
2811light breeze
2911light breeze
3010light breeze
3110light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 12 min at the start of May to 13 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over May. Sunrise moves from 6:03 AM to 5:43 AM, and sunset from 7:15 PM to 7:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.26:037:15
213.26:027:16
313.36:017:17
413.36:007:17
513.35:597:18
613.45:587:19
713.45:577:20
813.45:567:20
913.45:557:21
1013.55:557:22
1113.55:547:22
1213.55:537:23
1313.55:527:24
1413.65:517:24
1513.65:517:25
1613.65:507:26
1713.65:497:27
1813.65:497:27
1913.75:487:28
2013.75:487:29
2113.75:477:29
2213.75:477:30
2313.75:467:31
2413.85:467:31
2513.85:457:32
2613.85:457:32
2713.85:447:33
2813.85:447:34
2913.85:437:34
3013.95:437:35
3113.95:437:36

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.54 kWh/m².

For context, solar energy here swings from a low near 3.04 kWh/m² to a high of 7.02 kWh/m² in July across the year — May's 6.54 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.5Intense
116.5Intense
126.5Intense
136.5Intense
146.5Intense
156.5Intense
166.5Intense
176.5Intense
186.5Intense
196.6Intense
206.6Intense
216.6Intense
226.6Intense
236.6Intense
246.6Intense
256.7Intense
266.7Intense
276.7Intense
286.7Intense
296.7Intense
306.8Intense
316.8Intense
Planning a trip in May

Is May a good time to visit San Angelo?

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

5.2
Sightseeing
9th-best month of the year
7.1
Beach & pool
4th-best month of the year

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

What to pack for San Angelo in May

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

In May, San Angelo sees daytime highs around 86°F and nights near 63°F. Pack light clothes and sun protection. Worth having: rain gear. About 10 days see rain.

light clothessun protectionrain gear

UV index in San Angelo in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 10 (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 Angelo peaks around July 18 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 18UV 11Dec 18UV 3
UV index (midday)Level
Jan4Moderate
Feb5High
Mar7High
Apr9Very high
May10Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep9Very high
Oct6High
Nov5Moderate
Dec3Moderate
Location & terrain

Where is San Angelo?

San Angelo sits at 31.5°N, 100.4°W, 1,844 ft above sea level, in United States. The nearest listed city is Abilene, 80 mi away.

Topography around San Angelo

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of San Angelo.

Within 2 miles, the terrain around San Angelo has only modest variations in elevation — a maximum elevation change of 125 ft around an average of 1,857 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 604 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,332 ft.

The land around San Angelo is covered by artificial surfaces (60%) within 2 miles, cropland (31%) and grassland (26%) within 10 miles, and grassland (62%) within 50 miles.

2 miles
125 ft
10 miles
604 ft
50 miles
1,332 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Abilene 80 mi · Big Spring 82 mi · Brownwood 87 mi · Midland 103 mi · Odessa 117 mi · West Odessa 124 mi · Kerrville 124 mi · Breckenridge 127 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

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 Angelo (31.4638°, -100.437°, elevation 1,844 ft), 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).