Grapevine weather in May

In May, Grapevine sees average daytime highs of 82°F and overnight lows near 65°F, with 5.2 in of rain across 10.9 wet days and about 13.7 hours of daylight. It is the 5th-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 79°F in the first days to 86°F by the end. The sky is clear or mostly clear about 37% of the time in May, and the air most often feels muggy.

Daylight stretches from about 13 h 18 min at the start of May to 14 hours by month's end. Set against the rest of the year, May is Grapevine's 12th-clearest and 3rd-windiest month. For the whole year in context, see Grapevine's year-round climate.

Daytime high
82°
5th warmest
Overnight low
65°
8th coldest
Rainfall
5.2 in
10.9 wet days
Daylight
13 h 42 min
5:34 AM – 7:15 PM
Cloud cover
54%
12th clearest
Wind
9 mph
3rd windiest
Solar energy
5.77 kWh/m²
Travel score
6.0
out of 10

Grapevine is city in Tarrant County, Texas, United States.

Density
558/km²
people per km²
Founded
1844

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 79°F in the first days to 86°F by the end.

A typical May day in Grapevine reaches about 82°F in the afternoon and slips back to 65°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 74°F and 90°F. Set against its neighbours, May runs about 7°F warmer than April and about 7°F cooler than June.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
17860
27960
37961
47961
57961
68062
78062
88062
98063
108163
118163
128164
138164
148264
158265
168265
178265
188366
198366
208366
218367
228467
238467
248468
258568
268568
278568
288569
298669
308669
318670

How May really feels in Grapevine

Once humidity and wind are folded in, May averages 0 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
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Grapevine 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
Jan56° / 38°2.76.90.510.14.1
Feb60° / 41°2.77.10.610.85.2
Mar67° / 49°3.78.90.211.76.5
Apr75° / 56°4.18.2012.87.2
May82° / 65°5.210.9013.76.0
Jun90° / 73°3.27.7014.14.3
Jul94° / 76°1.85.40143.2
Aug94° / 76°2.05.2013.23.3
Sep87° / 69°2.86.1012.25.3
Oct77° / 58°3.87.5011.27.4
Nov66° / 47°3.56.80.110.36.7
Dec57° / 40°3.46.90.39.94.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 48%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25347
35347
45347
55248
65248
75149
85149
95149
105149
115149
125149
135149
145149
155149
165149
175149
185149
195149
205149
215248
225248
235248
245347
255347
265446
275446
285545
295644
305743
315743

Chance of precipitation in May

Any precipitation

Grapevine gets around 5.2 in of rain over 10.9 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 34% and peaks near 35% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
133
233
333
434
534
634
735
835
935
1035
1135
1234
1334
1434
1533
1633
1733
1833
1933
2034
2134
2234
2335
2435
2535
2635
2735
2835
2935
3035
3134

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the muggy band about 37% of days. Sticky, muggy-or-worse air turns up on roughly 46% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1381921193
2371822203
3351822223
4331723234
5321723244
6301624264
7291524275
8281525285
9271425295
10251325306
11241325316
12231326326
13221326337
14211226347
15201225357
16191225368
17171225388
18161224398
19151224419
20131223429
211211234410
221011224610
23911224711
24811214911
25611215012
26510205213
27410205214
2839205315
2929195416
3028195318
3128185319

Wind in May

Winds average 9 mph in May.

Across May, daily wind ranges from about 8 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
110light breeze
210light breeze
310light breeze
410light breeze
510light breeze
610light breeze
710light breeze
810light breeze
910light breeze
1010light breeze
1110light breeze
1210light breeze
1310light breeze
1410light breeze
1510light breeze
169light breeze
179light breeze
189light breeze
199light breeze
209light breeze
219light breeze
229light breeze
239light breeze
249light breeze
259light breeze
269light breeze
279light breeze
289light breeze
299light breeze
309light breeze
318light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 18 min at the start of May to 14 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over May. Sunrise moves from 5:47 AM to 5:26 AM, and sunset from 7:04 PM to 7:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:477:04
213.35:467:05
313.35:457:06
413.45:447:06
513.45:437:07
613.45:427:08
713.55:417:09
813.55:407:09
913.55:397:10
1013.55:387:11
1113.65:387:12
1213.65:377:12
1313.65:367:13
1413.65:357:14
1513.75:357:15
1613.75:347:15
1713.75:337:16
1813.75:327:17
1913.85:327:17
2013.85:317:18
2113.85:317:19
2213.85:307:20
2313.85:297:20
2413.95:297:21
2513.95:287:22
2613.95:287:22
2713.95:277:23
2813.95:277:24
2914.05:277:24
3014.05:267:25
3114.05:267:25

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.77 kWh/m².

For context, solar energy here swings from a low near 2.58 kWh/m² to a high of 6.8 kWh/m² in July across the year — May's 5.77 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
266.0Bright
276.0Bright
286.0Intense
296.0Intense
306.1Intense
316.1Intense
Planning a trip in May

Is May a good time to visit Grapevine?

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

6.0
Sightseeing
5th-best month of the year
6.7
Beach & pool
3rd-best month of the year

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

What to pack for Grapevine in May

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

In May, Grapevine sees daytime highs around 82°F and nights near 65°F. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

UV index in Grapevine 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 Grapevine peaks around July 14 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 14UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr9Very high
May10Very high
Jun10Extreme
Jul10Extreme
Aug10Extreme
Sep8Very high
Oct6High
Nov5Moderate
Dec3Moderate

Air quality in Grapevine 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 Grapevine is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (October, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1519 µg/m³Oct 248 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar10Good
Apr11Good
May14Moderate
Jun16Moderate
Jul19Moderate
Aug15Moderate
Sep11Good
Oct8Good
Nov8Good
Dec8Good
Location & terrain

Where is Grapevine?

Grapevine sits at 32.9°N, 97.1°W, 640 ft above sea level, in United States. The nearest listed city is Southlake, 3.1 mi away.

Topography around Grapevine

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

Within 2 miles, the terrain around Grapevine has only modest variations in elevation — a maximum elevation change of 171 ft around an average of 614 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 390 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,060 ft.

The land around Grapevine is covered by artificial surfaces (45%) and trees (31%) within 2 miles, artificial surfaces (43%), trees (29%) and grassland (20%) within 10 miles, and grassland (49%) and trees (25%) within 50 miles.

2 miles
171 ft
10 miles
390 ft
50 miles
1,060 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Southlake 3.1 mi · Coppell 3.7 mi · Flower Mound 5.6 mi · Colleyville 5.6 mi · Euless 6.8 mi · Bedford 7.5 mi · Lewisville 9.3 mi · Hurst 9.3 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 Grapevine (32.9343°, -97.0781°, elevation 640 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).