Moraga weather in May

In May, Moraga sees average daytime highs of 69°F and overnight lows near 52°F, with 0.7 in of rain across 3.2 wet days and about 14 hours of daylight. It is the 6th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 69°F through the month. The sky is clear or mostly clear about 56% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 30 min at the start of May to 14 h 24 min by month's end. Set against the rest of the year, May is Moraga's 6th-clearest and 2nd-windiest month. For the whole year in context, see Moraga's year-round climate.

Daytime high
69°
6th warmest
Overnight low
52°
7th coldest
Rainfall
0.7 in
3.2 wet days
Daylight
14 hours
5:04 AM – 7:06 PM
Cloud cover
39%
6th clearest
Wind
8 mph
2nd windiest
Solar energy
7.14 kWh/m²
Travel score
7.8
out of 10

Moraga is town in Contra Costa County, California, United States.

Density
706/km²
people per km²
Founded
1974

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 69°F through the month.

A typical May day in Moraga reaches about 69°F in the afternoon and slips back to 52°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 62°F and 79°F. Set against its neighbours, May runs about 3°F warmer than April and about 4°F cooler than June.

40°50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
16850
26950
36951
46951
56951
66951
76951
86951
96951
106951
116951
126951
136951
146951
156951
166951
176952
186952
196952
206952
216952
226952
236952
247052
257052
267053
277053
287053
297053
307153
317153

Moraga 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 daysDaylight (hours)Travel score
Jan57° / 44°3.79.49.74.2
Feb60° / 45°3.89.110.54.8
Mar62° / 47°2.98.811.75.7
Apr66° / 49°1.34.912.96.9
May69° / 52°0.73.2147.8
Jun73° / 54°0.10.914.69.0
Jul75° / 56°0.00.214.49.4
Aug76° / 56°0.00.113.59.4
Sep76° / 55°0.10.412.39.3
Oct72° / 53°0.82.9118.4
Nov63° / 47°1.85.7106.3
Dec57° / 44°3.49.39.44.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 56% 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 29%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16832
26931
36931
46931
56931
66931
76931
86931
96832
106832
116832
126931
136931
147030
157030
167030
177129
187129
197129
207228
217228
227228
237426
247426
257426
267525
277525
287525
297624
307624
317624

Chance of precipitation in May

Any precipitation

Moraga gets around 0.7 in of rain over 3.2 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 12% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
112
211
311
411
511
611
711
811
911
1011
1111
1211
1311
1411
1511
1611
1711
1811
1911
2010
2110
2210
2310
249
259
268
278
287
297
307
316

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 95% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1973
2982
3982
4982
5973
6973
7973
8973
9973
10973
11973
12964
13964
14964
15964
16964
17955
18955
19955
20955
21955
22946
23946
24946
25946
26946
27946
28946
29946
30937
31937

Wind in May

Winds average 8 mph in May.

Across May, daily wind ranges from about 7 mph on the calmest days to 8 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
107light breeze
117light 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 30 min at the start of May to 14 h 24 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 5:19 AM to 4:54 AM, and sunset from 6:52 PM to 7:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:196:52
213.65:186:53
313.65:176:54
413.75:166:55
513.75:156:56
613.75:146:57
713.85:126:58
813.85:116:59
913.85:107:00
1013.95:097:00
1113.95:087:01
1213.95:077:02
1313.95:067:03
1414.05:057:04
1514.05:057:05
1614.05:047:06
1714.15:037:07
1814.15:027:08
1914.15:017:08
2014.15:007:09
2114.25:007:10
2214.24:597:11
2314.24:587:12
2414.24:587:13
2514.34:577:13
2614.34:567:14
2714.34:567:15
2814.34:557:16
2914.44:557:16
3014.44:547:17
3114.44:547:18

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.14 kWh/m².

For context, solar energy here swings from a low near 2.2 kWh/m² to a high of 7.84 kWh/m² in June across the year — May's 7.14 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
16.8Intense
26.8Intense
36.9Intense
46.9Intense
56.9Intense
67.0Intense
77.0Intense
87.0Intense
97.0Intense
107.0Intense
117.1Intense
127.1Intense
137.1Intense
147.1Intense
157.1Intense
167.1Intense
177.2Intense
187.2Intense
197.2Intense
207.2Intense
217.2Intense
227.3Intense
237.3Intense
247.3Intense
257.3Intense
267.3Intense
277.4Intense
287.4Intense
297.4Intense
307.5Intense
317.5Intense
Planning a trip in May

Is May a good time to visit Moraga?

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

7.8
Sightseeing
6th-best month of the year
4.5
Beach & pool
6th-best month of the year

May is one of the better times to visit Moraga for general sightseeing.

What to pack for Moraga in May

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

In May, Moraga sees daytime highs around 69°F and nights near 52°F. Pack sun protection. About 3 days see rain.

sun protection

Sea temperature near Moraga in May

The nearest coast averages about 53°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 27 mi away) is warmest in September at about 58°F and coldest in April near 53°F.

The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.

52°54°56°58°60°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°F)Comfort
Jan53Bracing
Feb53Bracing
Mar54Bracing
Apr53Bracing
May53Bracing
Jun54Bracing
Jul56Bracing
Aug58Bracing
Sep58Bracing
Oct57Bracing
Nov55Bracing
Dec54Bracing

UV index in Moraga in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Moraga peaks around June 23 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 23UV 10Dec 15UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr6High
May8Very high
Jun10Very high
Jul10Very high
Aug10Very high
Sep6High
Oct5High
Nov2Moderate
Dec2Low

Air quality in Moraga 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 Moraga is worst in August — around 25 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (June, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateAug 1824 µg/m³Jun 1110 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb18Moderate
Mar16Moderate
Apr12Moderate
May10Good
Jun10Good
Jul11Good
Aug25Moderate
Sep17Moderate
Oct20Moderate
Nov18Moderate
Dec13Moderate
Location & terrain

Where is Moraga?

Moraga sits at 37.8°N, 122.1°W, 499 ft above sea level, in United States. The nearest listed city is Lafayette, 3.7 mi away.

Topography around Moraga

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

Within 2 miles, the terrain around Moraga has only modest variations in elevation — a maximum elevation change of 801 ft around an average of 722 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,031 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 4,452 ft.

The land around Moraga is covered by trees (55%) and grassland (31%) within 2 miles, trees (46%), artificial surfaces (28%) and grassland (22%) within 10 miles, and grassland (28%), water (25%) and trees (23%) within 50 miles.

2 miles
801 ft
10 miles
2,031 ft
50 miles
4,452 ft
treesgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Lafayette 3.7 mi · Orinda 3.7 mi · Walnut Creek 6.2 mi · Danville 6.8 mi · San Leandro 7.5 mi · Oakland 8.1 mi · Berkeley 8.1 mi · Alameda 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 Moraga (37.8349°, -122.1297°, elevation 499 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).