Hermosillo weather in July

In July, Hermosillo sees average daytime highs of 39°C and overnight lows near 27°C, with 40 mm of rain across 7.6 wet days and about 13.7 hours of daylight. It is the 2nd-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 39°C through the month. The sky is clear or mostly clear about 48% of the time in July, and the air most often feels oppressive.

Daylight stretches from about 13 h 48 min at the start of July to 13 h 24 min by month's end. Set against the rest of the year, July is Hermosillo's 12th-clearest and 5th-windiest month. For the whole year in context, see Hermosillo's year-round climate.

Daytime high
39°
2nd warmest
Overnight low
27°
12th coldest
Rainfall
40 mm
7.6 wet days
Daylight
13 h 42 min
5:39 AM – 7:20 PM
Cloud cover
45%
12th clearest
Wind
9 km/h
5th windiest
Solar energy
7.07 kWh/m²
Travel score
0.8
out of 10

Hermosillo is city in Mexico, Sonora state capital.

Founded
1700

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 39°C through the month.

A typical July day in Hermosillo reaches about 39°C in the afternoon and slips back to 27°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 35°C and 42°C. Set against its neighbours, July runs on par with June and about 1°C warmer than August.

20°25°30°35°40°45°151015202531
Avg high (°C)Avg low (°C)
13926
23926
33927
43927
53927
63927
73927
83927
93927
103927
113927
123927
133927
143927
153927
163927
173827
183827
193827
203827
213827
223827
233827
243827
253827
263827
273827
283827
293827
303827
313827

How July really feels in Hermosillo

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

Days feeling ≥ 32°C
31
31 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
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.

Hermosillo weather by month

How July compares with the rest of the year at a glance. July is the 2nd-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 121.610.38.9
Feb26° / 10°152118.4
Mar29° / 12°70.911.87.3
Apr32° / 15°10.412.75.3
May36° / 18°00.113.43.0
Jun39° / 24°31.113.80.7
Jul39° / 27°407.613.70.8
Aug38° / 27°519.8131.2
Sep37° / 25°527.112.22.0
Oct34° / 19°192.111.34.1
Nov28° / 13°131.510.57.4
Dec24° / 191.910.28.7

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in July, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 23% of July, with mostly cloudy or overcast conditions the remaining 29%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18218
28020
37921
47822
57723
67624
77525
87525
97426
107426
117228
127228
137228
147129
157030
166931
176931
186931
196733
206733
216733
226634
236634
246634
256634
266634
276733
286733
296733
306733
316931

Chance of precipitation in July

Any precipitation

Hermosillo gets around 40 mm of rain over 7.6 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 24% and peaks near 28% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
117
219
320
421
522
622
723
823
924
1024
1124
1224
1323
1423
1523
1623
1723
1823
1923
2023
2124
2224
2325
2425
2526
2626
2726
2827
2927
3028
3128

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the oppressive band about 39% of days. Sticky, muggy-or-worse air turns up on roughly 76% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
115112428202
213112429212
312102429233
41192330243
51092330254
6982231264
7872231274
8762132285
9762133295
10652033305
11651934315
12641934325
13541835345
14531735355
15531635375
16431535385
17421435404
18421335424
19321235444
20321135464
21321034474
2222934494
2322934504
2422833514
2522833514
2612733525
2712732535
2812732535
2912731536
3012731536
3112730546

Wind in July

Winds average 9 km/h in July.

Across July, daily wind ranges from about 8 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 13 h 48 min at the start of July to 13 h 24 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 5:32 AM to 5:47 AM, and sunset from 7:22 PM to 7:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.85:327:22
213.85:327:22
313.85:337:22
413.85:337:22
513.85:347:22
613.85:347:22
713.85:347:22
813.85:357:22
913.85:357:22
1013.85:367:22
1113.85:367:22
1213.75:377:21
1313.75:377:21
1413.75:387:21
1513.75:387:21
1613.75:397:20
1713.75:397:20
1813.75:407:20
1913.65:407:19
2013.65:417:19
2113.65:417:18
2213.65:427:18
2313.65:437:17
2413.65:437:17
2513.55:447:16
2613.55:447:16
2713.55:457:15
2813.55:457:15
2913.55:467:14
3013.45:477:13
3113.45:477:13

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 7.07 kWh/m².

For context, solar energy here swings from a low near 3.81 kWh/m² to a high of 8.27 kWh/m² in May across the year — July's 7.07 kWh/m² falls in the middle.

02468151015202531
Solar energy (kWh/m²)Level
17.6Intense
27.5Intense
37.5Intense
47.4Intense
57.4Intense
67.4Intense
77.3Intense
87.3Intense
97.3Intense
107.2Intense
117.2Intense
127.2Intense
137.2Intense
147.1Intense
157.1Intense
167.1Intense
177.1Intense
187.0Intense
197.0Intense
207.0Intense
217.0Intense
227.0Intense
236.9Intense
246.9Intense
256.9Intense
266.9Intense
276.9Intense
286.9Intense
296.8Intense
306.8Intense
316.8Intense
Planning a trip in July

Is July a good time to visit Hermosillo?

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

0.8
Sightseeing
11th-best month of the year
3.6
Beach & pool
12th-best month of the year

July is a weaker month for outdoor sightseeing in Hermosillo.

What to pack for Hermosillo in July

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

In July, Hermosillo sees daytime highs around 39°C and nights near 27°C. Pack light clothes and sun protection. About 8 days see rain.

light clothessun protection

UV index in Hermosillo in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Hermosillo peaks around July 11 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighModerateJul 11UV 12Dec 18UV 4
UV index (midday)Level
Jan5Moderate
Feb6High
Mar8Very high
Apr10Extreme
May10Extreme
Jun12Extreme
Jul12Extreme
Aug11Extreme
Sep10Very high
Oct7High
Nov5High
Dec4Moderate
Location & terrain

Where is Hermosillo?

Hermosillo sits at 29.1°N, 111.0°W, 202 m above sea level, in Mexico. The nearest listed city is Miguel Alemán (La Doce), 57 km away.

EsperanzaCiudad ObregónHeroica Caborca

Topography around Hermosillo

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Hermosillo.

Within 3 km, the terrain around Hermosillo has only modest variations in elevation — a maximum elevation change of 142 m around an average of 213 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 530 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,508 m.

The land around Hermosillo is covered by artificial surfaces (89%) within 3 km, shrubs (63%) within 16 km, and shrubs (85%) within 80 km.

3 km
142 m
16 km
530 m
80 km
1,508 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
July weather nearby: Miguel Alemán (La Doce) 57 km · San Carlos 126 km · Empalme 126 km · Heroica Guaymas 130 km · Magdalena de Kino 171 km · Esperanza 196 km · Ciudad Obregón 205 km · Heroica Caborca 215 km

Mexico travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B
120 / 127 V · 60 Hz
Prices
≈ 54% of US
price level, 2025
GDP per capita
$13,889
2025
Happiness
7.0 / 10
World Happiness, 2025
Safe drinking water
43%
of population, 2024
Homicide rate
24.9
per 100k, 2023
Road deaths
12.8
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very low
EF EPI 440
Religion
Catholic 78%no religion 11%other Evangelical Churches 8%Jehovah Witness 1%

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 Hermosillo (29.0887°, -110.9668°, elevation 202 m), 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).