Glen Cove weather in May

In May, Glen Cove sees average daytime highs of 67°F and overnight lows near 55°F, with 3.4 in of rain across 10.8 wet days and about 14.2 hours of daylight. It is the 5th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 63°F in the first days to 71°F by the end. The sky is clear or mostly clear about 27% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 42 min at the start of May to 14 h 42 min by month's end. Set against the rest of the year, May is Glen Cove's 12th-clearest and 8th-windiest month. For the whole year in context, see Glen Cove's year-round climate.

Daytime high
67°
5th warmest
Overnight low
55°
8th coldest
Rainfall
3.4 in
10.8 wet days
Daylight
14 h 18 min
4:43 AM – 6:59 PM
Cloud cover
63%
12th clearest
Wind
8 mph
8th windiest
Solar energy
5.62 kWh/m²
Travel score
6.0
out of 10

Glen Cove is city in Nassau County, New York, United States.

Density
550/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 63°F in the first days to 71°F by the end.

A typical May day in Glen Cove reaches about 67°F in the afternoon and slips back to 55°F overnight — a 12°F spread between the day's warmth and the night's chill. On most days the high lands between 58°F and 77°F. Set against its neighbours, May runs about 10°F warmer than April and about 10°F cooler than June.

40°50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
16250
26250
36351
46351
56351
66451
76452
86452
96452
106553
116553
126553
136553
146654
156654
166754
176755
186755
196755
206856
216856
226956
236957
246957
257057
267058
277158
287159
297159
307259
317260

How May really feels in Glen Cove

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.

Glen Cove 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 daysSnow daysDaylight (hours)Travel score
Jan38° / 28°3.39.24.19.40.0
Feb40° / 28°3.18.73.610.40.1
Mar47° / 35°4.210.42.911.71.4
Apr57° / 45°3.610.60.313.14.0
May67° / 55°3.410.8014.26.0
Jun76° / 65°3.710.6014.96.6
Jul82° / 71°3.710.5014.66.2
Aug80° / 70°3.910.4013.66.5
Sep74° / 63°3.69.2012.37.0
Oct63° / 52°4.08.4010.95.8
Nov53° / 42°3.28.30.49.73.1
Dec44° / 33°4.19.72.49.10.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 16% of May, with mostly cloudy or overcast conditions the remaining 57%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14258
24258
34357
44357
54258
64258
74258
84258
94357
104258
114357
124357
134258
144357
154357
164357
174357
184357
194456
204456
214456
224357
234357
244456
254456
264456
274555
284555
294555
304456
314555

Chance of precipitation in May

Any precipitation

Glen Cove gets around 3.4 in of rain over 10.8 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 35% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
235
334
434
534
634
734
834
934
1034
1134
1234
1334
1434
1534
1634
1734
1834
1934
2035
2135
2235
2335
2435
2535
2635
2735
2835
2936
3036
3135

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 72% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
191720
291720
390820
489830
588930
6871030
7861040
8851140
9831250
10821350
11811360
12801460
13791470
14781570
15761680
16741790
17741790
187118101
196820111
206720112
216521122
226222133
236023143
245823154
255624164
265424175
275225176
285125186
294925197
304726197
314526208

Wind in May

Winds average 8 mph in May.

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

051015151015202531
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
78light breeze
88light breeze
98light 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
278light breeze
288light breeze
298light breeze
308light breeze
318light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 42 min at the start of May to 14 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over May. Sunrise moves from 5:00 AM to 4:31 AM, and sunset from 6:43 PM to 7:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:006:43
213.84:596:45
313.84:576:46
413.84:566:47
513.94:556:48
613.94:546:49
714.04:526:50
814.04:516:51
914.04:506:52
1014.14:496:53
1114.14:486:54
1214.14:476:55
1314.24:466:56
1414.24:456:57
1514.24:446:58
1614.34:436:59
1714.34:427:00
1814.34:417:01
1914.44:407:02
2014.44:397:03
2114.44:387:04
2214.54:377:05
2314.54:367:06
2414.54:367:07
2514.54:357:07
2614.64:347:08
2714.64:347:09
2814.64:337:10
2914.64:327:11
3014.74:327:12
3114.74:317:12

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.62 kWh/m².

For context, solar energy here swings from a low near 1.75 kWh/m² to a high of 6.07 kWh/m² in June across the year — May's 5.62 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.9Bright
295.9Bright
305.9Bright
315.9Bright
Planning a trip in May

Hazard calendar for Glen Cove

In seasonPeak

None of Glen Cove's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Glen Cove sits in the Atlantic hurricane belt; the season peaks August–October.

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

Is May a good time to visit Glen Cove?

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
2.8
Beach & pool
5th-best month of the year

May is a reasonable time to visit Glen Cove for sightseeing.

What to pack for Glen Cove in May

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

In May, Glen Cove sees daytime highs around 67°F and nights near 55°F. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

Sea temperature near Glen Cove in May

The nearest coast averages about 55°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 16 mi away) is warmest in August at about 73°F and coldest in February near 40°F.

It's comfortable for a long swim from Jun 30 to Sep 25 — about 2.9 months when the water holds above 68°F.

40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°F)Comfort
Jan43Bracing
Feb40Bracing
Mar40Bracing
Apr46Bracing
May55Bracing
Jun65Cool
Jul72Refreshing
Aug73Refreshing
Sep70Refreshing
Oct63Cool
Nov55Bracing
Dec48Bracing

UV index in Glen Cove in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Glen Cove peaks around July 11 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 22 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 11UV 8Dec 22UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May7Very high
Jun8Very high
Jul8Very high
Aug6High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Glen Cove 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 Glen Cove is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1018 µg/m³Nov 169 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb13Moderate
Mar15Moderate
Apr16Moderate
May18Moderate
Jun18Moderate
Jul19Moderate
Aug16Moderate
Sep13Moderate
Oct10Good
Nov9Good
Dec10Good
Location & terrain

Where is Glen Cove?

Glen Cove sits at 40.9°N, 73.6°W, 23 ft above sea level, in United States. The nearest listed city is Port Washington, 4.3 mi away.

Topography around Glen Cove

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

Within 2 miles, the terrain around Glen Cove has only modest variations in elevation — a maximum elevation change of 243 ft around an average of 105 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 397 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,909 ft.

The land around Glen Cove is covered by trees (53%) and water (22%) within 2 miles, trees (40%) and water (37%) within 10 miles, and trees (48%) and water (37%) within 50 miles.

2 miles
243 ft
10 miles
397 ft
50 miles
1,909 ft
treesgrasslandartificial surfaceswaterwetland
May weather nearby: Port Washington 4.3 mi · Syosset 7.5 mi · Westbury 7.5 mi · Mineola 8.1 mi · Mamaroneck 8.1 mi · Harrison 8.7 mi · New Rochelle 8.7 mi · Rye 8.7 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 Glen Cove (40.8623°, -73.6337°, elevation 23 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).