Ramona weather in May

In May, Ramona sees average daytime highs of 73°F and overnight lows near 52°F, with 0.6 in of rain across 2.7 wet days and about 13.7 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 75°F by the end. The sky is clear or mostly clear about 69% 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 hours by month's end. Set against the rest of the year, May is Ramona's 6th-clearest and 5th-windiest month. For the whole year in context, see Ramona's year-round climate.

Daytime high
73°
6th warmest
Overnight low
52°
7th coldest
Rainfall
0.6 in
2.7 wet days
Daylight
13 h 42 min
4:53 AM – 6:35 PM
Cloud cover
29%
6th clearest
Wind
4 mph
5th windiest
Solar energy
7.68 kWh/m²
Travel score
8.6
out of 10

Ramona is census-designated place in San Diego County, California, United States.

Density
204/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 72°F in the first days to 75°F by the end.

A typical May day in Ramona reaches about 73°F in the afternoon and slips back to 52°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
77251
87251
97352
107352
117352
127352
137352
147352
157352
167352
177352
187353
197353
207353
217353
227453
237453
247453
257453
267453
277553
287554
297554
307654
317654

Ramona 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
Jan62° / 42°2.96.210.16.1
Feb62° / 43°3.57.810.85.8
Mar65° / 45°2.46.611.76.6
Apr69° / 48°1.24.912.87.5
May73° / 52°0.62.713.78.6
Jun80° / 58°0.10.614.18.6
Jul86° / 64°0.31.6146.6
Aug87° / 65°0.31.613.26.2
Sep84° / 62°0.31.612.27.2
Oct77° / 55°0.72.711.28.7
Nov69° / 47°1.3410.37.7
Dec62° / 42°2.35.79.96.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 69% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 11% of May, with mostly cloudy or overcast conditions the remaining 20%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17525
27525
37525
47525
57525
67624
77525
87525
97525
107525
117723
127723
137822
147822
158020
168020
178020
188119
198218
208218
218218
228317
238317
248317
258416
268416
278515
288515
298515
308515
318614

Chance of precipitation in May

Any precipitation

Ramona gets around 0.6 in of rain over 2.7 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 9% and peaks near 14% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
114
213
313
413
513
612
712
812
912
1011
1111
1210
1310
149
159
168
178
187
197
207
217
226
236
246
256
265
275
285
295
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 93% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19820
29820
39820
49730
59730
69640
79640
89640
99550
109550
119460
129460
139460
149370
159370
169370
179370
189280
199280
209280
219280
229280
239280
249181
259181
269091
279091
2889101
2989101
3088111
3188111

Wind in May

Winds average 4 mph in May.

Across May, daily wind ranges from about 4 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
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in May

DaylightNight

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

Days grow by about 42 minutes over May. Sunrise moves from 5:06 AM to 4:45 AM, and sunset from 6:23 PM to 6:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:066:23
213.35:056:24
313.45:046:25
413.45:036:26
513.45:026:26
613.45:016:27
713.55:006:28
813.54:596:29
913.54:586:29
1013.54:576:30
1113.64:576:31
1213.64:566:32
1313.64:556:32
1413.64:546:33
1513.74:536:34
1613.74:536:35
1713.74:526:35
1813.74:516:36
1913.84:516:37
2013.84:506:38
2113.84:506:38
2213.84:496:39
2313.94:486:40
2413.94:486:40
2513.94:476:41
2613.94:476:42
2713.94:466:42
2814.04:466:43
2914.04:466:44
3014.04:456:44
3114.04:456:45

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.68 kWh/m².

For context, solar energy here swings from a low near 3.16 kWh/m² to a high of 8.36 kWh/m² in June across the year — May's 7.68 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.3Intense
27.4Intense
37.4Intense
47.4Intense
57.4Intense
67.4Intense
77.5Intense
87.5Intense
97.5Intense
107.5Intense
117.5Intense
127.6Intense
137.6Intense
147.6Intense
157.6Intense
167.7Intense
177.7Intense
187.7Intense
197.7Intense
207.8Intense
217.8Intense
227.8Intense
237.8Intense
247.9Intense
257.9Intense
267.9Intense
278.0Intense
288.0Intense
298.0Intense
308.1Intense
318.1Intense
Planning a trip in May

Is May a good time to visit Ramona?

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

8.6
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 Ramona for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Ramona in May

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

In May, Ramona sees daytime highs around 73°F and nights near 52°F. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

Sea temperature near Ramona in May

The nearest coast averages about 64°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 30 mi away) is warmest in August at about 71°F and coldest in January near 59°F.

It's comfortable for a long swim from Jul 5 to Oct 7 — about 3.1 months when the water holds above 68°F.

60°65°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingcomfortable to swim
Sea temperature (°F)Comfort
Jan59Cool
Feb59Cool
Mar60Cool
Apr61Cool
May64Cool
Jun66Cool
Jul69Refreshing
Aug71Refreshing
Sep70Refreshing
Oct67Cool
Nov64Cool
Dec61Cool

UV index in Ramona in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ramona peaks around June 23 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 23UV 11Dec 17UV 3
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar5Moderate
Apr8Very high
May9Very high
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Ramona 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 Ramona is worst in September — around 26 µg/m³ PM2.5 (moderate), about 3.4× the cleanest month (May, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateSep 1625 µg/m³May 168 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb12Moderate
Mar12Moderate
Apr11Good
May8Good
Jun11Good
Jul11Good
Aug15Moderate
Sep26Moderate
Oct14Moderate
Nov12Moderate
Dec16Moderate
Location & terrain

Where is Ramona?

Ramona sits at 33.0°N, 116.9°W, 1,427 ft above sea level, in United States. The nearest listed city is Poway, 11 mi away.

Topography around Ramona

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

Within 2 miles, the terrain around Ramona has only modest variations in elevation — a maximum elevation change of 518 ft around an average of 1,490 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,698 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 8,619 ft.

The land around Ramona is covered by grassland (44%) and artificial surfaces (23%) within 2 miles, shrubs (48%), trees (26%) and grassland (21%) within 10 miles, and shrubs (31%) within 50 miles.

2 miles
518 ft
10 miles
3,698 ft
50 miles
8,619 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Poway 11 mi · Lakeside 13 mi · Escondido 14 mi · Winter Gardens 15 mi · Santee 16 mi · Rancho Penasquitos 16 mi · Bostonia 17 mi · El Cajon 18 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 Ramona (33.0417°, -116.8681°, elevation 1,427 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).