Wildwood weather in May

In May, Wildwood sees average daytime highs of 75°F and overnight lows near 57°F, with 4.9 in of rain across 13.2 wet days and about 14.1 hours of daylight. It is the 5th-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 71°F in the first days to 79°F by the end. The sky is clear or mostly clear about 28% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 36 min at the start of May to 14 h 30 min by month's end. Set against the rest of the year, May is Wildwood's 9th-clearest and 8th-windiest month. For the whole year in context, see Wildwood's year-round climate.

Daytime high
75°
5th warmest
Overnight low
57°
8th coldest
Rainfall
4.9 in
13.2 wet days
Daylight
14 h 06 min
4:56 AM – 7:02 PM
Cloud cover
62%
9th clearest
Wind
7 mph
8th windiest
Solar energy
5.81 kWh/m²
Travel score
6.3
out of 10

Wildwood is exurban suburb of St. Louis, located in far western St. Louis County, Missouri, United States.

Density
207/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 71°F in the first days to 79°F by the end.

A typical May day in Wildwood reaches about 75°F in the afternoon and slips back to 57°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 63°F and 86°F. Set against its neighbours, May runs about 8°F warmer than April and about 9°F cooler than June.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
17052
27152
37153
47153
57253
67254
77354
87355
97355
107355
117456
127456
137456
147456
157557
167557
177557
187658
197658
207658
217659
227759
237760
247860
257860
267861
277861
287961
297962
307962
318062

How May really feels in Wildwood

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.

Wildwood 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
Jan40° / 25°2.77.92.99.60.0
Feb45° / 28°2.47.62.710.51.1
Mar56° / 37°3.710.81.411.73.7
Apr67° / 47°4.511.50.2135.8
May75° / 57°4.913.2014.16.3
Jun84° / 66°3.911.1014.65.4
Jul88° / 70°3.310.3014.44.4
Aug87° / 67°3.19.5013.55.0
Sep80° / 59°3.28012.37.0
Oct68° / 48°3.48.30116.7
Nov55° / 38°3.58.40.69.93.6
Dec44° / 29°2.58.12.19.40.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% 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 58%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14258
24357
34357
44357
54258
64258
74357
84258
94258
104258
114258
124357
134357
144357
154258
164357
174258
184258
194357
204258
214258
224357
234258
244258
254258
264258
274258
284357
294357
304357
314456

Chance of precipitation in May

Any precipitation

Wildwood gets around 4.9 in of rain over 13.2 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 42% and peaks near 46% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
146
245
345
444
544
643
743
842
942
1042
1141
1241
1341
1441
1541
1642
1742
1842
1943
2043
2143
2243
2343
2443
2542
2642
2742
2841
2941
3040
3140

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 46% of days. Sticky, muggy-or-worse air turns up on roughly 17% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
168191120
266191230
364201330
462201440
561201540
659201650
758201660
856201770
954201880
1054191890
11511919101
12511819111
13501820121
14491720131
15481720141
16471620151
17461620161
18451521181
19441521191
20431521202
21411521222
22391521232
23381522242
24361522253
25341522263
26331522273
27311622273
28301622284
29281722294
30271722304
31251822305

Wind in May

Winds average 7 mph in May.

Across May, daily wind ranges from about 6 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 36 min at the start of May to 14 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over May. Sunrise moves from 5:12 AM to 4:46 AM, and sunset from 6:47 PM to 7:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.65:126:47
213.65:116:48
313.75:106:49
413.75:096:50
513.75:076:51
613.85:066:52
713.85:056:53
813.85:046:54
913.95:036:55
1013.95:026:56
1113.95:016:57
1214.05:006:58
1314.04:596:59
1414.04:587:00
1514.14:577:01
1614.14:567:02
1714.14:557:03
1814.24:547:03
1914.24:547:04
2014.24:537:05
2114.24:527:06
2214.34:517:07
2314.34:517:08
2414.34:507:09
2514.34:497:09
2614.44:497:10
2714.44:487:11
2814.44:477:12
2914.44:477:13
3014.44:467:13
3114.54:467:14

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.81 kWh/m².

For context, solar energy here swings from a low near 1.94 kWh/m² to a high of 6.42 kWh/m² in June across the year — May's 5.81 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.4Bright
35.4Bright
45.5Bright
55.5Bright
65.5Bright
75.6Bright
85.6Bright
95.6Bright
105.7Bright
115.7Bright
125.7Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
216.0Bright
226.0Bright
236.0Bright
246.0Bright
256.0Intense
266.0Intense
276.0Intense
286.0Intense
296.0Intense
306.1Intense
316.1Intense
Planning a trip in May

Is May a good time to visit Wildwood?

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

6.3
Sightseeing
3rd-best month of the year
5.2
Beach & pool
5th-best month of the year

May is a reasonable time to visit Wildwood for sightseeing.

What to pack for Wildwood in May

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

In May, Wildwood sees daytime highs around 75°F and nights near 57°F. Worth packing: light clothes, rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

UV index in Wildwood in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Wildwood peaks around June 22 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 22UV 9Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar5High
Apr7High
May8Very high
Jun10Very high
Jul9Very high
Aug8Very high
Sep7High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Wildwood 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 Wildwood is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (November, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModerateGoodJul 1517 µg/m³Nov 127 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb10Good
Mar13Moderate
Apr10Good
May13Moderate
Jun15Moderate
Jul17Moderate
Aug14Moderate
Sep11Good
Oct7Good
Nov7Good
Dec8Good
Location & terrain

Where is Wildwood?

Wildwood sits at 38.6°N, 90.7°W, 755 ft above sea level, in United States. The nearest listed city is Ballwin, 6.2 mi away.

Topography around Wildwood

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

Within 2 miles, the terrain around Wildwood has only modest variations in elevation — a maximum elevation change of 390 ft around an average of 751 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 568 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,234 ft.

The land around Wildwood is covered by trees (77%) within 2 miles, trees (69%) within 10 miles, and trees (58%) and cropland (24%) within 50 miles.

2 miles
390 ft
10 miles
568 ft
50 miles
1,234 ft
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Ballwin 6.2 mi · Chesterfield 7.5 mi · Manchester 8.1 mi · Kirkwood 14 mi · Creve Coeur 14 mi · Saint Peters 15 mi · Maryland Heights 16 mi · O'Fallon 16 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 Wildwood (38.5828°, -90.6629°, elevation 755 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).