Boca Raton weather in May

In May, Boca Raton sees average daytime highs of 83°F and overnight lows near 75°F, with 3.9 in of rain across 11.6 wet days and about 13.3 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 83°F through the month. The sky is clear or mostly clear about 40% of the time in May, and the air most often feels oppressive.

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 Boca Raton's 2nd-clearest and 8th-windiest month. For the whole year in context, see Boca Raton's year-round climate.

Daytime high
83°
5th warmest
Overnight low
75°
7th coldest
Rainfall
3.9 in
11.6 wet days
Daylight
13 h 18 min
5:38 AM – 6:55 PM
Cloud cover
50%
2nd clearest
Wind
9 mph
8th windiest
Solar energy
6.24 kWh/m²
Travel score
5.9
out of 10

Boca Raton is city in Palm Beach County, Florida, United States.

Density
1,151/km²
people per km²
Founded
1925

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 83°F through the month.

A typical May day in Boca Raton reaches about 83°F in the afternoon and slips back to 75°F overnight — a 8°F spread between the day's warmth and the night's chill. On most days the high lands between 79°F and 86°F. Set against its neighbours, May runs about 3°F warmer than April and about 2°F cooler than June.

70°80°90°151015202531
Avg high (°F)Avg low (°F)
18173
28173
38273
48273
58273
68273
78274
88274
98274
108274
118274
128374
138374
148374
158374
168375
178375
188375
198375
208375
218375
228375
238375
248376
258376
268376
278376
288476
298476
308476
318476

How May really feels in Boca Raton

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.

Boca Raton weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan74° / 64°2.07.410.57.4
Feb75° / 65°1.86.811.17.5
Mar77° / 67°2.38.111.87.3
Apr80° / 71°2.78.712.66.9
May83° / 75°3.911.613.35.9
Jun85° / 78°6.120.113.64.0
Jul87° / 79°4.519.613.53.7
Aug87° / 79°5.621.212.93.6
Sep85° / 78°6.221.312.23.7
Oct83° / 76°4.514.611.45.4
Nov79° / 71°2.28.910.76.9
Dec76° / 67°1.77.810.47.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% 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 37%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16733
26733
36931
46931
56931
66931
76931
86931
96931
106931
116931
126931
136733
146733
156634
166535
176337
186337
196238
206139
216040
226040
235941
245842
255743
265644
275545
285446
295248
305149
315050

Chance of precipitation in May

Any precipitation

Boca Raton gets around 3.9 in of rain over 11.6 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 39% and peaks near 56% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
132
231
331
430
530
630
729
829
930
1030
1131
1232
1333
1434
1536
1637
1738
1840
1941
2043
2144
2245
2346
2447
2548
2649
2750
2852
2953
3054
3156

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 45% of days. Sticky, muggy-or-worse air turns up on roughly 80% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
15122035290
24121935290
34121836300
44121837300
53121738300
63111639300
73111640310
82111640310
92101541320
102101541320
11291541330
12181441350
13181441360
14171441380
15161440390
16151340410
17041339430
18041338450
19031337470
20021236491
21021234511
22021133531
23011032561
24011030572
2501929592
2601827622
2701726633
2800724654
2900622675
3000521686
3100419707

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
59light breeze
69light breeze
79light breeze
89light breeze
99light breeze
109light breeze
119light breeze
129light breeze
139light breeze
149light breeze
159light breeze
169light breeze
179light breeze
189light breeze
199light breeze
209light breeze
219light breeze
229light breeze
239light breeze
249light breeze
259light breeze
268light breeze
278light breeze
288light breeze
298light breeze
308light breeze
318light breeze

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 5:48 AM to 5:32 AM, and sunset from 6:47 PM to 7:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:486:47
213.05:476:48
313.05:466:48
413.05:466:49
513.15:456:49
613.15:446:50
713.15:446:50
813.15:436:51
913.25:426:51
1013.25:416:52
1113.25:416:52
1213.25:406:53
1313.25:406:54
1413.35:396:54
1513.35:386:55
1613.35:386:55
1713.35:376:56
1813.35:376:56
1913.35:366:57
2013.45:366:57
2113.45:356:58
2213.45:356:59
2313.45:356:59
2413.45:347:00
2513.45:347:00
2613.55:347:01
2713.55:337:01
2813.55:337:02
2913.55:337:02
3013.55:327:03
3113.55:327:03

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.24 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.17 kWh/m² to a high of 6.24 kWh/m² in May across the year — May's 6.24 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.3Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.4Intense
96.3Intense
106.3Intense
116.3Intense
126.3Intense
136.3Intense
146.3Intense
156.3Intense
166.2Intense
176.2Intense
186.2Intense
196.2Intense
206.1Intense
216.1Intense
226.1Intense
236.0Intense
246.0Intense
256.0Intense
266.0Bright
276.0Bright
285.9Bright
295.9Bright
305.9Bright
315.9Bright
Planning a trip in May

Hazard calendar for Boca Raton

In seasonPeak

In May, Boca Raton sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Boca Raton sits in the Atlantic hurricane belt; the season peaks August–October.

Boca Raton's rainy season runs May–October, when most of the year's rain falls.

Atlantic hurricane
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Boca Raton?

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

5.9
Sightseeing
7th-best month of the year
6.6
Beach & pool
2nd-best month of the year

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

What to pack for Boca Raton in May

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

In May, Boca Raton sees daytime highs around 83°F and nights near 75°F. Pack light clothes and sun protection. Worth having: rain gear. About 12 days see rain.

light clothessun protectionrain gear

Sea temperature near Boca Raton in May

The nearest coast averages about 81°F in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 13 mi away) is warmest in August at about 85°F and coldest in February near 77°F.

The water stays above 68°F all year — warm enough for a swim any month.

75°80°85°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan77Warm
Feb77Warm
Mar77Warm
Apr79Warm
May81Warm
Jun83Tropical
Jul85Tropical
Aug85Tropical
Sep85Tropical
Oct83Tropical
Nov81Warm
Dec79Warm

UV index in Boca Raton 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 Boca Raton peaks around July 11 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighModerateJul 11UV 12Dec 18UV 5
UV index (midday)Level
Jan5High
Feb7Very high
Mar9Very high
Apr9Very high
May10Very high
Jun12Extreme
Jul12Extreme
Aug11Extreme
Sep9Very high
Oct8Very high
Nov6High
Dec5Moderate

Air quality in Boca Raton 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 Boca Raton is worst in July — around 23 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (November, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1722 µg/m³Nov 2010 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar13Moderate
Apr14Moderate
May15Moderate
Jun18Moderate
Jul23Moderate
Aug19Moderate
Sep14Moderate
Oct11Good
Nov10Good
Dec10Good
Location & terrain

Where is Boca Raton?

Boca Raton sits at 26.4°N, 80.1°W, 13 ft above sea level, in United States. The nearest listed city is Deerfield Beach, 3.1 mi away.

Topography around Boca Raton

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

Within 2 miles, the terrain around Boca Raton has only modest variations in elevation — a maximum elevation change of 56 ft around an average of 13 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 213 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 203 ft.

The land around Boca Raton is covered by artificial surfaces (47%) and water (27%) within 2 miles, water (47%) and artificial surfaces (29%) within 10 miles, and water (37%) and wetland (29%) within 50 miles.

2 miles
56 ft
10 miles
213 ft
50 miles
203 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Deerfield Beach 3.1 mi · Boca Del Mar 4.3 mi · Sandalfoot Cove 6.8 mi · Delray Beach 6.8 mi · Pompano Beach 8.7 mi · Coconut Creek 9.3 mi · Parkland 9.9 mi · Margate 11 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 Boca Raton (26.3587°, -80.0831°, elevation 13 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).