Duarte weather in May

In May, Duarte sees average daytime highs of 73°F and overnight lows near 53°F, with 0.5 in of rain across 3 wet days and about 13.8 hours of daylight. It is the 6th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 72°F in the first days to 76°F by the end. The sky is clear or mostly clear about 65% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 18 min at the start of May to 14 h 06 min by month's end. Set against the rest of the year, May is Duarte's 6th-clearest and 7th-windiest month. For the whole year in context, see Duarte's year-round climate.

Daytime high
73°
6th warmest
Overnight low
53°
7th coldest
Rainfall
0.5 in
3 wet days
Daylight
13 h 48 min
4:55 AM – 6:41 PM
Cloud cover
32%
6th clearest
Wind
3 mph
7th windiest
Solar energy
7.54 kWh/m²
Travel score
8.5
out of 10

Duarte is city in Los Angeles County, California, United States.

Density
1,269/km²
people per km²
Founded
1957

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 72°F in the first days to 76°F by the end.

A typical May day in Duarte reaches about 73°F in the afternoon and slips back to 53°F overnight — a 21°F spread between the day's warmth and the night's chill. On most days the high lands between 62°F and 84°F. Set against its neighbours, May runs about 5°F warmer than April and about 7°F cooler than June.

40°50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
17251
27251
37251
47251
57251
67251
77351
87352
97352
107352
117352
127352
137352
147352
157352
167352
177352
187353
197353
207453
217453
227453
237453
247453
257453
267554
277554
287554
297654
307655
317655

Duarte weather by month

How May compares with the rest of the year at a glance. May is the 6th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan59° / 42°3.55.91.1105.3
Feb60° / 43°3.86.91.510.75.2
Mar63° / 45°2.56.7111.76.3
Apr68° / 47°1.040.312.87.6
May73° / 53°0.53013.88.5
Jun81° / 58°0.10.7014.28.5
Jul86° / 64°0.42.10146.4
Aug88° / 65°0.21.9013.36.0
Sep84° / 61°0.31.8012.27.5
Oct76° / 55°0.82.6011.18.7
Nov66° / 47°0.92.90.210.27.6
Dec59° / 42°2.45.20.79.85.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 65% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 13% of May, with mostly cloudy or overcast conditions the remaining 23%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17327
27327
37327
47327
57327
67327
77327
87327
97327
107327
117327
127525
137525
147525
157624
167723
177723
187723
197723
207822
217921
227921
237921
248119
258119
268119
278119
288317
298317
308317
318416

Chance of precipitation in May

Any precipitation

Duarte gets around 0.5 in of rain over 3 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 10% and peaks near 11% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
111
211
311
411
511
611
711
811
911
1011
1111
1211
1311
1411
1511
1611
1710
1810
1910
2010
2110
229
239
248
258
267
277
286
296
305
315

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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1991
2991
3991
4991
5991
6991
7991
8991
9991
10991
11991
12991
13991
14991
15991
16991
17991
18991
19991
20991
21991
22991
23991
24982
25982
26982
27982
28973
29973
30964
31964

Wind in May

Winds average 3 mph in May.

Across May, daily wind ranges from about 3 mph on the calmest days to 4 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
163calm
173calm
183calm
193calm
203calm
213calm
223calm
233calm
243calm
253calm
263calm
273calm
283calm
293calm
303calm
313calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 18 min at the start of May to 14 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over May. Sunrise moves from 5:09 AM to 4:47 AM, and sunset from 6:30 PM to 6:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:096:30
213.45:086:30
313.45:076:31
413.45:066:32
513.55:056:33
613.55:046:33
713.55:036:34
813.65:026:35
913.65:016:36
1013.65:006:37
1113.64:596:37
1213.74:586:38
1313.74:576:39
1413.74:576:40
1513.74:566:41
1613.84:556:41
1713.84:546:42
1813.84:546:43
1913.84:536:44
2013.94:526:44
2113.94:526:45
2213.94:516:46
2313.94:506:46
2414.04:506:47
2514.04:496:48
2614.04:496:49
2714.04:486:49
2814.04:486:50
2914.14:476:51
3014.14:476:51
3114.14:476:52

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.54 kWh/m².

For context, solar energy here swings from a low near 2.96 kWh/m² to a high of 8.18 kWh/m² in June across the year — May's 7.54 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.3Intense
27.3Intense
37.3Intense
47.3Intense
57.3Intense
67.3Intense
77.4Intense
87.4Intense
97.4Intense
107.4Intense
117.4Intense
127.5Intense
137.5Intense
147.5Intense
157.5Intense
167.5Intense
177.5Intense
187.6Intense
197.6Intense
207.6Intense
217.6Intense
227.7Intense
237.7Intense
247.7Intense
257.7Intense
267.8Intense
277.8Intense
287.8Intense
297.8Intense
307.9Intense
317.9Intense
Planning a trip in May

Is May a good time to visit Duarte?

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

8.5
Sightseeing
2nd-best month of the year
6.6
Beach & pool
6th-best month of the year

May is one of the better times to visit Duarte for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Duarte in May

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

In May, Duarte sees daytime highs around 73°F and nights near 53°F. Pack sun protection. Worth having: light clothes. About 3 days see rain.

sun protectionlight clothes

Sea temperature near Duarte in May

The nearest coast averages about 62°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 29 mi away) is warmest in August at about 68°F and coldest in February near 59°F.

It's comfortable for a long swim from Aug 4 to Sep 13 — about 1.3 months when the water holds above 68°F.

60°65°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°F)Comfort
Jan59Bracing
Feb59Bracing
Mar59Bracing
Apr59Cool
May62Cool
Jun65Cool
Jul67Cool
Aug68Refreshing
Sep68Refreshing
Oct66Cool
Nov63Cool
Dec60Cool

UV index in Duarte 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 Duarte peaks around July 11 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highExtremeVery highHighModerateJul 11UV 11Dec 16UV 3
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar5Moderate
Apr8Very high
May8Very high
Jun11Extreme
Jul11Extreme
Aug10Extreme
Sep8Very high
Oct6High
Nov3Moderate
Dec3Moderate

Air quality in Duarte 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 Duarte is worst in September — around 39 µg/m³ PM2.5 (poor), about 3.2× the cleanest month (May, 12 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateSep 1537 µg/m³May 1612 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb15Moderate
Mar16Moderate
Apr14Moderate
May12Moderate
Jun15Moderate
Jul18Moderate
Aug22Moderate
Sep39Poor
Oct15Moderate
Nov17Moderate
Dec14Moderate
Location & terrain

Where is Duarte?

Duarte sits at 34.1°N, 118.0°W, 512 ft above sea level, in United States. The nearest listed city is Monrovia, 1.2 mi away.

Topography around Duarte

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

Within 2 miles, the terrain around Duarte has significant variations in elevation — a maximum elevation change of 1,778 ft around an average of 627 ft above sea level; within 10 miles, very significant variations in elevation — a maximum elevation change of 5,932 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 10,013 ft.

The land around Duarte is covered by artificial surfaces (53%) and trees (23%) within 2 miles, artificial surfaces (44%), shrubs (26%) and trees (23%) within 10 miles, and artificial surfaces (26%) and grassland (20%) within 50 miles.

2 miles
1,778 ft
10 miles
5,932 ft
50 miles
10,013 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Monrovia 1.2 mi · Arcadia 3.1 mi · Baldwin Park 3.7 mi · Azusa 3.7 mi · Temple City 5.0 mi · West Covina 5.6 mi · El Monte 5.6 mi · Covina 6.2 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 Duarte (34.1394°, -117.9773°, elevation 512 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. 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).