Imperial weather in July

In July, Imperial sees average daytime highs of 109°F and overnight lows near 81°F, with 0.2 in of rain across 1.5 wet days and about 13.9 hours of daylight. It is the 1st-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 109°F through the month. The sky is clear or mostly clear about 79% of the time in July, and the air most often feels dry.

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 Imperial's 7th-clearest and 7th-windiest month. For the whole year in context, see Imperial's year-round climate.

Daytime high
109°
1st warmest
Overnight low
81°
11th coldest
Rainfall
0.2 in
1.5 wet days
Daylight
14 hours
4:49 AM – 6:47 PM
Cloud cover
22%
7th clearest
Wind
5 mph
7th windiest
Solar energy
7.8 kWh/m²
Travel score
0.0
out of 10

Imperial is city in Imperial County, California, United States.

Density
1,127/km²
people per km²
Founded
1904

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 109°F through the month.

A typical July day in Imperial reaches about 109°F in the afternoon and slips back to 81°F overnight — a 28°F spread between the day's warmth and the night's chill. On most days the high lands between 103°F and 114°F. Set against its neighbours, July runs about 4°F warmer than June and on par with August.

80°100°120°151015202531
Avg high (°F)Avg low (°F)
110878
210878
310878
410879
510879
610879
710980
810980
910980
1010980
1110980
1210981
1310981
1410981
1510981
1610981
1710982
1810982
1910982
2010982
2110982
2210982
2310982
2410982
2510982
2610983
2710983
2810983
2910983
3010983
3110983

How July really feels in Imperial

Once humidity and wind are folded in, July averages 31 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
31
31 feel dangerously hot (≥ 102°F)
Days feeling ≤ 32°F
0
wind chill below the day's low

The story in July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Imperial weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan71° / 48°0.41.710.18.4
Feb75° / 50°0.5210.88.7
Mar82° / 54°0.31.111.87.9
Apr88° / 59°0.10.512.85.8
May96° / 66°0.00.213.73.1
Jun104° / 73°0.0014.10.4
Jul109° / 81°0.21.513.90.0
Aug108° / 82°0.32.513.20.0
Sep102° / 75°0.41.412.20.8
Oct91° / 64°0.20.711.24.8
Nov79° / 53°0.20.610.38.6
Dec70° / 47°0.41.59.98.2

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 79% 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 12%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1928
2928
3919
4919
5919
6919
7919
8919
98911
108911
118911
128911
138911
148911
158812
168812
178812
188812
198812
208713
218713
228614
238614
248614
258515
268515
278515
288515
298614
308614
318614

Chance of precipitation in July

Any precipitation

Imperial gets around 0.2 in of rain over 1.5 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 4% and peaks near 7% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
12
23
33
43
54
64
74
84
94
104
114
124
134
144
154
164
174
184
194
204
214
225
235
245
256
266
276
286
297
307
317

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the dry band about 50% of days. Sticky, muggy-or-worse air turns up on roughly 19% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
171111161
269111271
366121381
464131382
562131492
6601414102
7601414102
8571415113
9561515113
10551515123
11551515123
12551515123
13531516133
14521516134
15511516144
16501516154
17491517154
18481517164
19461517174
20451518174
21441518184
22421519195
23401519205
24391520205
25381620215
26371621216
27361621216
28361621216
29361620216
30371620216
31371620216

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 4:41 AM to 4:59 AM, and sunset from 6:50 PM to 6:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.14:416:50
214.14:426:50
314.14:426:50
414.14:436:50
514.14:436:50
614.14:436:50
714.14:446:49
814.14:446:49
914.14:456:49
1014.14:456:49
1114.04:466:49
1214.04:476:48
1314.04:476:48
1414.04:486:48
1514.04:486:47
1614.04:496:47
1714.04:496:47
1813.94:506:46
1913.94:516:46
2013.94:516:45
2113.94:526:45
2213.94:536:44
2313.84:536:44
2413.84:546:43
2513.84:546:42
2613.84:556:42
2713.84:566:41
2813.74:566:40
2913.74:576:40
3013.74:586:39
3113.74:596:38

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 7.8 kWh/m².

For context, solar energy here swings from a low near 3.33 kWh/m² to a high of 8.52 kWh/m² in June across the year — July's 7.8 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
18.2Intense
28.2Intense
38.2Intense
48.1Intense
58.1Intense
68.1Intense
78.0Intense
88.0Intense
98.0Intense
108.0Intense
117.9Intense
127.9Intense
137.9Intense
147.8Intense
157.8Intense
167.8Intense
177.8Intense
187.8Intense
197.7Intense
207.7Intense
217.7Intense
227.7Intense
237.6Intense
247.6Intense
257.6Intense
267.6Intense
277.5Intense
287.5Intense
297.5Intense
307.5Intense
317.5Intense
Planning a trip in July

Is July a good time to visit Imperial?

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

0.0
Sightseeing
11th-best month of the year
1.2
Beach & pool
12th-best month of the year

July is a weaker month for outdoor sightseeing in Imperial.

What to pack for Imperial in July

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

In July, Imperial sees daytime highs around 109°F and nights near 81°F. Pack light clothes and sun protection.

light clothessun protection

UV index in Imperial in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 10 (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 peaks around June 21 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 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 highHighModerateJun 21UV 11Dec 18UV 3
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar5Moderate
Apr8Very high
May8Very high
Jun11Extreme
Jul10Extreme
Aug10Extreme
Sep8Very high
Oct6High
Nov4Moderate
Dec3Moderate
Location & terrain

Where is Imperial?

Imperial sits at 32.8°N, 115.6°W, -59 ft above sea level, in United States. The nearest listed city is El Centro, 3.7 mi away.

Topography around Imperial

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

Within 2 miles, the terrain around Imperial has only modest variations in elevation — a maximum elevation change of 33 ft around an average of -62 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 315 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 6,545 ft.

The land around Imperial is covered by cropland (47%), bare terrain (27%) and artificial surfaces (22%) within 2 miles, cropland (69%) and bare terrain (21%) within 10 miles, and bare terrain (61%) within 50 miles.

2 miles
33 ft
10 miles
315 ft
50 miles
6,545 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: El Centro 3.7 mi · Brawley 9.3 mi · Calexico 12 mi · Santa Isabel 15 mi · Mexicali 17 mi · Puebla 23 mi · Ciudad Guadalupe Victoria 47 mi · San Luis 52 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 (32.8475°, -115.5694°, elevation -59 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).