Lemon Grove weather in July

In July, Lemon Grove sees average daytime highs of 79°F and overnight lows near 64°F, with 0.1 in of rain across 0.7 wet days and about 13.9 hours of daylight. It is the 3rd-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 79°F through the month. The sky is clear or mostly clear about 83% of the time in July, and the air most often feels comfortable.

Daylight stretches from about 14 h 06 min at the start of July to 13 h 42 min by month's end. Set against the rest of the year, July is Lemon Grove's 3rd-clearest and 9th-windiest month. For the whole year in context, see Lemon Grove's year-round climate.

Daytime high
79°
3rd warmest
Overnight low
64°
11th coldest
Rainfall
0.1 in
0.7 wet days
Daylight
14 hours
4:55 AM – 6:53 PM
Cloud cover
20%
3rd clearest
Wind
5 mph
9th windiest
Solar energy
7.79 kWh/m²
Travel score
8.9
out of 10

Lemon Grove is city in San Diego County, California, USA.

Density
2,659/km²
people per km²
Founded
1977

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 79°F through the month.

A typical July day in Lemon Grove reaches about 79°F in the afternoon and slips back to 64°F overnight — a 15°F spread between the day's warmth and the night's chill. On most days the high lands between 74°F and 85°F. Set against its neighbours, July runs about 5°F warmer than June and about 2°F cooler than August.

50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
17862
27862
37862
47863
57863
67863
77863
87963
97963
107964
117964
127964
137964
147964
157964
167964
177964
187964
197964
207964
217964
227964
238065
248065
258065
268065
278065
288065
298065
308065
318065

Lemon Grove weather by month

How July compares with the rest of the year at a glance. July is the 3rd-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan64° / 48°2.35.610.16.8
Feb64° / 48°2.9710.86.3
Mar65° / 50°1.95.811.86.8
Apr68° / 53°0.93.912.87.6
May70° / 56°0.4213.78.2
Jun74° / 60°0.10.614.19.2
Jul79° / 64°0.10.713.98.9
Aug81° / 65°0.10.513.28.7
Sep80° / 64°0.20.912.28.8
Oct76° / 59°0.62.511.28.7
Nov70° / 53°0.93.310.37.9
Dec64° / 48°1.95.29.96.8

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 83% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 9% of July, with mostly cloudy or overcast conditions the remaining 8%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1937
2937
3937
4937
5937
6937
7928
8928
9928
10928
11928
12928
13928
14928
15919
16919
17919
18919
19919
20919
21919
22919
239010
249010
259010
269010
27919
28919
29919
30919
31928

Chance of precipitation in July

Any precipitation

Lemon Grove gets around 0.1 in of rain over 0.7 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 2% and peaks near 3% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
11
21
31
41
51
61
71
81
91
102
112
122
132
142
152
162
172
182
192
202
212
223
233
243
253
263
273
283
293
303
313

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

Most of July feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, July lands in the comfortable band about 53% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12059192
21859203
31660213
41459234
51359244
61259254
71059265
8959275
9859285
10759295
11758305
12658315
13557326
14556336
15456346
16455356
17355366
18354376
19352387
20351397
21251407
22250417
23249427
24247438
25246448
26245458
27244469
28243479
29242479
30242489
31241499

Wind in July

Winds average 5 mph in July.

Across July, daily wind ranges from about 5 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 06 min at the start of July to 13 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over July. Sunrise moves from 4:48 AM to 5:05 AM, and sunset from 6:55 PM to 6:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.14:486:55
214.14:486:55
314.14:486:55
414.14:496:55
514.14:496:55
614.14:506:55
714.14:506:55
814.14:516:55
914.14:516:55
1014.04:526:54
1114.04:526:54
1214.04:536:54
1314.04:536:54
1414.04:546:53
1514.04:546:53
1614.04:556:53
1713.94:556:52
1813.94:566:52
1913.94:576:51
2013.94:576:51
2113.94:586:50
2213.94:596:50
2313.84:596:49
2413.85:006:49
2513.85:016:48
2613.85:016:47
2713.75:026:47
2813.75:036:46
2913.75:036:45
3013.75:046:45
3113.75:056:44

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 7.79 kWh/m².

For context, solar energy here swings from a low near 3.14 kWh/m² to a high of 8.08 kWh/m² in June across the year — July's 7.79 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
18.1Intense
28.1Intense
38.1Intense
48.0Intense
58.0Intense
68.0Intense
78.0Intense
88.0Intense
97.9Intense
107.9Intense
117.9Intense
127.9Intense
137.8Intense
147.8Intense
157.8Intense
167.8Intense
177.8Intense
187.8Intense
197.7Intense
207.7Intense
217.7Intense
227.7Intense
237.7Intense
247.7Intense
257.6Intense
267.6Intense
277.6Intense
287.6Intense
297.6Intense
307.6Intense
317.6Intense
Planning a trip in July

Is July a good time to visit Lemon Grove?

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

8.9
Sightseeing
2nd-best month of the year
8.5
Beach & pool
3rd-best month of the year

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

What to pack for Lemon Grove in July

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

In July, Lemon Grove sees daytime highs around 79°F and nights near 64°F. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

Sea temperature near Lemon Grove in July

The nearest coast averages about 68°F in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 10 mi away) is warmest in August at about 70°F and coldest in February near 59°F.

It's comfortable for a long swim from Jul 13 to Sep 28 — about 2.6 months when the water holds above 68°F.

60°65°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingcomfortable to swim
Sea temperature (°F)Comfort
Jan60Cool
Feb59Cool
Mar60Cool
Apr61Cool
May63Cool
Jun65Cool
Jul68Refreshing
Aug70Refreshing
Sep69Refreshing
Oct67Cool
Nov64Cool
Dec61Cool

UV index in Lemon Grove in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lemon Grove 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 — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 23UV 11Dec 17UV 3
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar5High
Apr8Very high
May8Very high
Jun11Extreme
Jul11Extreme
Aug10Extreme
Sep8Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Lemon Grove in July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.

Air quality in Lemon Grove 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 Lemon Grove?

Lemon Grove sits at 32.7°N, 117.0°W, 446 ft above sea level, in United States. The nearest listed city is La Mesa, 1.9 mi away.

Topography around Lemon Grove

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

Within 2 miles, the terrain around Lemon Grove has only modest variations in elevation — a maximum elevation change of 554 ft around an average of 456 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,556 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 6,450 ft.

The land around Lemon Grove is covered by artificial surfaces (80%) within 2 miles, artificial surfaces (52%) within 10 miles, and water (30%) and shrubs (26%) within 50 miles.

2 miles
554 ft
10 miles
2,556 ft
50 miles
6,450 ft
treesshrubsgrasslandartificial surfacesbare terrainwater
July weather nearby: La Mesa 1.9 mi · Spring Valley 1.9 mi · La Presa 3.1 mi · Casa de Oro-Mount Helix 3.7 mi · El Cajon 5.6 mi · Rancho San Diego 5.6 mi · National City 6.2 mi · Bostonia 6.8 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 Lemon Grove (32.7426°, -117.0314°, elevation 446 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).