Imperial Beach weather in July

In July, Imperial Beach sees average daytime highs of 72°F and overnight lows near 65°F, with 0.1 in of rain across 0.4 wet days and about 13.9 hours of daylight. It is the 3rd-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 72°F through the month. The sky is clear or mostly clear about 76% of the time in July, and the air most often feels humid.

Daylight stretches from about 14 h 06 min at the start of July to 13 h 36 min by month's end. Set against the rest of the year, July is Imperial Beach's 3rd-clearest and 6th-windiest month. For the whole year in context, see Imperial Beach's year-round climate.

Daytime high
72°
3rd warmest
Overnight low
65°
10th coldest
Rainfall
0.1 in
0.4 wet days
Daylight
13 h 54 min
4:56 AM – 6:53 PM
Cloud cover
28%
3rd clearest
Wind
6 mph
6th windiest
Solar energy
7.71 kWh/m²
Travel score
8.8
out of 10

Imperial Beach is city in San Diego County, California, United States.

Density
2,360/km²
people per km²
Founded
1887

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 72°F through the month.

A typical July day in Imperial Beach reaches about 72°F in the afternoon and slips back to 65°F overnight — a 7°F spread between the day's warmth and the night's chill. On most days the high lands between 68°F and 76°F. Set against its neighbours, July runs about 4°F warmer than June and about 2°F cooler than August.

60°65°70°75°80°151015202531
Avg high (°F)Avg low (°F)
17163
27163
37163
47163
57164
67164
77164
87164
97164
107264
117264
127264
137264
147265
157265
167265
177265
187265
197265
207265
217265
227265
237265
247265
257365
267365
277365
287365
297365
307365
317365

Imperial Beach weather by month

How July compares with the rest of the year at a glance. July is the 3rd-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan61° / 52°2.56.110.15.8
Feb61° / 52°3.1710.85.4
Mar61° / 53°2.15.911.85.8
Apr63° / 55°1.04.212.86.7
May65° / 58°0.42.113.67.5
Jun68° / 60°0.10.414.18.3
Jul72° / 65°0.10.413.98.8
Aug74° / 66°0.00.313.29.2
Sep73° / 65°0.20.812.29.0
Oct70° / 62°0.62.411.28.3
Nov66° / 56°1.03.610.37.4
Dec61° / 52°2.05.79.96.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 76% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 14% of July, with mostly cloudy or overcast conditions the remaining 10%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1937
2937
3937
4928
5919
6919
7919
8919
9919
109010
119010
129010
139010
149010
159010
169010
179010
189010
199010
209010
219010
229010
239010
248911
258911
268911
278911
288911
298911
308911
319010

Chance of precipitation in July

Any precipitation

Imperial Beach gets around 0.1 in of rain over 0.4 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 2% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
11
21
31
41
51
61
71
81
91
101
111
121
131
141
151
162
172
182
192
202
212
222
232
242
252
262
272
282
292
302
312

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the humid band about 47% of days. Sticky, muggy-or-worse air turns up on roughly 8% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1664282
2563293
3561313
4460324
5359344
6357364
7256375
8254395
9252415
10250436
11148456
12147466
13145477
14144487
15143497
16142508
17041518
18040528
19039529
20038539
21037549
220365410
230365410
240355411
250345511
260335512
270335512
280325612
290315712
300315613
310315613

Wind in July

Winds average 6 mph in July.

Across July, daily wind ranges from about 6 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 06 min at the start of July to 13 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 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
214.14:496:55
314.14:496:55
414.14:496:55
514.14:506:55
614.14:506:55
714.14:516:55
814.14:516:55
914.04:526:55
1014.04:526:54
1114.04:536:54
1214.04:536:54
1314.04:546:54
1414.04:546:53
1514.04:556:53
1613.94:566:53
1713.94:566:52
1813.94:576:52
1913.94:576:51
2013.94:586:51
2113.94:596:50
2213.84:596:50
2313.85:006:49
2413.85:016:49
2513.85:016:48
2613.85:026:47
2713.75:036:47
2813.75:036:46
2913.75:046:45
3013.75:056:45
3113.65:056:44

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 7.71 kWh/m².

For context, solar energy here swings from a low near 3.16 kWh/m² to a high of 7.97 kWh/m² in June across the year — July's 7.71 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
18.0Intense
28.0Intense
37.9Intense
47.9Intense
57.9Intense
67.9Intense
77.9Intense
87.8Intense
97.8Intense
107.8Intense
117.8Intense
127.8Intense
137.8Intense
147.7Intense
157.7Intense
167.7Intense
177.7Intense
187.7Intense
197.7Intense
207.6Intense
217.6Intense
227.6Intense
237.6Intense
247.6Intense
257.6Intense
267.5Intense
277.5Intense
287.5Intense
297.5Intense
307.5Intense
317.5Intense
Planning a trip in July

Is July a good time to visit Imperial Beach?

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

8.8
Sightseeing
3rd-best month of the year
6.2
Beach & pool
3rd-best month of the year

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

What to pack for Imperial Beach in July

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

In July, Imperial Beach sees daytime highs around 72°F and nights near 65°F. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

Sea temperature near Imperial Beach 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 offshore 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 Imperial Beach 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 Imperial Beach 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
Mar5High
Apr8Very high
May8Very high
Jun11Extreme
Jul11Extreme
Aug10Extreme
Sep8Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Imperial Beach 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 Imperial Beach is worst in October — around 33 µg/m³ PM2.5 (moderate), about 5.4× the cleanest month (May, 6 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateOct 1631 µg/m³May 176 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar10Good
Apr9Good
May6Good
Jun9Good
Jul8Good
Aug9Good
Sep16Moderate
Oct33Moderate
Nov13Moderate
Dec17Moderate
Location & terrain

Where is Imperial Beach?

Imperial Beach sits at 32.6°N, 117.1°W, 20 ft above sea level, in United States. The nearest listed city is Chula Vista, 4.3 mi away.

Topography around Imperial Beach

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

Within 2 miles, the terrain around Imperial Beach has only modest variations in elevation — a maximum elevation change of 105 ft around an average of 16 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,152 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 6,450 ft.

The land around Imperial Beach is covered by artificial surfaces (36%) and water (35%) within 2 miles, water (43%) and artificial surfaces (35%) within 10 miles, and water (35%) and shrubs (24%) within 50 miles.

2 miles
105 ft
10 miles
1,152 ft
50 miles
6,450 ft
treesshrubsgrasslandartificial surfacesbare terrainwaterwetland
July weather nearby: Chula Vista 4.3 mi · National City 6.8 mi · Coronado 8.1 mi · Tijuana 8.7 mi · San Diego 9.3 mi · Pórticos de San Antonio 11 mi · La Presa 11 mi · La Joya 12 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 Imperial Beach (32.5839°, -117.1131°, elevation 20 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).