Alief weather in May

In May, Alief sees average daytime highs of 85°F and overnight lows near 68°F, with 3.5 in of rain across 9.8 wet days and about 13.5 hours of daylight. It is the 5th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 83°F in the first days to 88°F by the end. The sky is clear or mostly clear about 35% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 13 h 06 min at the start of May to 13 h 48 min by month's end. Set against the rest of the year, May is Alief's 5th-clearest and 5th-windiest month. For the whole year in context, see Alief's year-round climate.

Daytime high
85°
5th warmest
Overnight low
68°
8th coldest
Rainfall
3.5 in
9.8 wet days
Daylight
13 h 30 min
5:34 AM – 7:03 PM
Cloud cover
54%
5th clearest
Wind
8 mph
5th windiest
Solar energy
5.94 kWh/m²
Travel score
5.3
out of 10

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 88°F by the end.

A typical May day in Alief reaches about 85°F in the afternoon and slips back to 68°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 79°F and 91°F. Set against its neighbours, May runs about 6°F warmer than April and about 5°F cooler than June.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18264
28265
38365
48365
58366
68366
78366
88367
98467
108467
118467
128467
138568
148568
158568
168568
178569
188569
198669
208669
218670
228670
238770
248770
258771
268771
278771
288871
298872
308872
318872

How May really feels in Alief

Once humidity and wind are folded in, May averages 10 days 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
10
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.

Alief weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan63° / 45°3.91010.35.6
Feb67° / 48°3.18.810.96.2
Mar73° / 55°3.49.311.86.8
Apr79° / 61°3.78.712.76.9
May85° / 68°3.59.813.55.3
Jun90° / 74°4.312.513.93.7
Jul92° / 76°3.312.213.73.2
Aug92° / 75°3.612.213.13.1
Sep88° / 71°4.311.512.24.3
Oct81° / 62°4.08.811.36.7
Nov72° / 53°3.98.710.57.0
Dec65° / 47°4.19.310.16.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 23% of May, with mostly cloudy or overcast conditions the remaining 42%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25347
35347
45347
55347
65347
75446
85446
95545
105545
115644
125644
135743
145743
155842
165842
175941
185842
195941
206040
215941
226040
235941
246040
256139
266139
276238
286238
296238
306337
316337

Chance of precipitation in May

Any precipitation

Alief gets around 3.5 in of rain over 9.8 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 31% and peaks near 36% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
127
227
327
427
528
628
729
829
929
1030
1130
1230
1331
1431
1531
1632
1732
1832
1932
2032
2132
2233
2333
2433
2534
2634
2734
2835
2935
3035
3136

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 38% of days. Sticky, muggy-or-worse air turns up on roughly 72% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
119121731210
219121731220
318111631240
417111631250
516101631270
615101632280
71491632290
81391632300
91281632310
101281632320
111181632321
121071533341
13971533351
14971533351
15861533361
16861534371
17761434381
18751434391
19651335401
20641335411
21541235422
22541135432
23431135452
24431035462
2533934482
2632934502
2722833523
2822733533
2912732553
3012631564
3112630574

Wind in May

Winds average 8 mph in May.

Across May, daily wind ranges from about 7 mph on the calmest days to 9 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
19light breeze
29light breeze
39light breeze
49light breeze
59light breeze
69light breeze
79light breeze
89light breeze
99light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
277light breeze
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 06 min at the start of May to 13 h 48 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 5:46 AM to 5:27 AM, and sunset from 6:54 PM to 7:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.15:466:54
213.25:456:54
313.25:446:55
413.25:436:55
513.25:426:56
613.35:416:57
713.35:406:57
813.35:406:58
913.35:396:59
1013.45:386:59
1113.45:377:00
1213.45:377:01
1313.45:367:01
1413.45:357:02
1513.55:357:03
1613.55:347:03
1713.55:337:04
1813.55:337:05
1913.55:327:05
2013.65:327:06
2113.65:317:06
2213.65:317:07
2313.65:307:08
2413.65:307:08
2513.75:297:09
2613.75:297:09
2713.75:297:10
2813.75:287:11
2913.75:287:11
3013.75:287:12
3113.85:277:12

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.94 kWh/m².

For context, solar energy here swings from a low near 2.61 kWh/m² to a high of 6.26 kWh/m² in July across the year — May's 5.94 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
125.9Bright
135.9Bright
145.9Bright
156.0Bright
166.0Bright
176.0Bright
186.0Bright
196.0Intense
206.0Intense
216.0Intense
226.0Intense
236.0Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
316.1Intense
Planning a trip in May

Is May a good time to visit Alief?

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

5.3
Sightseeing
8th-best month of the year
7.0
Beach & pool
2nd-best month of the year

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

What to pack for Alief in May

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

In May, Alief sees daytime highs around 85°F and nights near 68°F. Pack light clothes. Worth having: rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Alief 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 Alief peaks around August 10 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateAug 10UV 11Dec 21UV 4
UV index (midday)Level
Jan4Moderate
Feb6High
Mar6High
Apr10Very high
May10Extreme
Jun10Extreme
Jul11Extreme
Aug11Extreme
Sep8Very high
Oct6High
Nov5Moderate
Dec4Moderate

Air quality in Alief 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 Alief is worst in July — around 24 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (December, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1523 µg/m³Dec 2010 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar12Moderate
Apr12Moderate
May16Moderate
Jun20Moderate
Jul24Moderate
Aug18Moderate
Sep15Moderate
Oct11Good
Nov10Good
Dec10Good
Location & terrain

Where is Alief?

Alief sits at 29.7°N, 95.6°W, 75 ft above sea level, in United States. The nearest listed city is Mission Bend, 4.3 mi away.

Topography around Alief

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

Within 2 miles, the terrain around Alief has only modest variations in elevation — a maximum elevation change of 62 ft around an average of 79 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 151 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 476 ft.

The land around Alief is covered by artificial surfaces (58%) and trees (26%) within 2 miles, trees (46%) and artificial surfaces (38%) within 10 miles, and trees (40%) and grassland (32%) within 50 miles.

2 miles
62 ft
10 miles
151 ft
50 miles
476 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Mission Bend 4.3 mi · Sugar Land 6.8 mi · Stafford 6.8 mi · Missouri City 7.5 mi · Bellaire 8.1 mi · New Territory 9.3 mi · West University Place 9.9 mi · Cinco Ranch 9.9 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 Alief (29.7111°, -95.5963°, elevation 75 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. 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).