Pasadena weather in July

In July, Pasadena sees average daytime highs of 91°F and overnight lows near 76°F, with 3.6 in of rain across 12.7 wet days and about 13.7 hours of daylight. It is the 2nd-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 91°F through the month. The sky is clear or mostly clear about 36% of the time in July, and the air most often feels oppressive.

Daylight stretches from about 13 h 54 min at the start of July to 13 h 30 min by month's end. Set against the rest of the year, July is Pasadena's 8th-clearest and 11th-windiest month. For the whole year in context, see Pasadena's year-round climate.

Daytime high
91°
2nd warmest
Overnight low
76°
12th coldest
Rainfall
3.6 in
12.7 wet days
Daylight
13 h 42 min
5:34 AM – 7:18 PM
Cloud cover
56%
8th clearest
Wind
6 mph
11th windiest
Solar energy
6.21 kWh/m²
Travel score
3.3
out of 10

Pasadena is city southeast of Houston, belonging to Harris County, Texas, United States.

Density
1,341/km²
people per km²
Founded
1893

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 91°F through the month.

A typical July day in Pasadena reaches about 91°F in the afternoon and slips back to 76°F overnight — a 16°F spread between the day's warmth and the night's chill. On most days the high lands between 86°F and 96°F. Set against its neighbours, July runs about 2°F warmer than June and on par with August.

70°80°90°100°151015202531
Avg high (°F)Avg low (°F)
19075
29175
39175
49176
59176
69176
79176
89176
99176
109176
119176
129176
139176
149176
159176
169176
179176
189176
199176
209276
219276
229276
239276
249276
259276
269276
279276
289276
299276
309276
319276

How July really feels in Pasadena

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
2 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.

Pasadena weather by month

How July compares with the rest of the year at a glance. July is the 2nd-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan63° / 45°4.21010.35.6
Feb66° / 49°3.3910.96.1
Mar72° / 55°3.79.211.86.8
Apr78° / 61°3.88.912.76.9
May85° / 69°3.59.813.55.5
Jun89° / 74°4.512.813.93.8
Jul91° / 76°3.612.713.73.3
Aug92° / 75°3.913.313.13.2
Sep88° / 71°4.611.812.24.4
Oct81° / 62°4.18.711.36.8
Nov71° / 53°4.18.310.57.0
Dec65° / 47°4.29.610.15.9

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 22% of July, with mostly cloudy or overcast conditions the remaining 43%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25842
35842
45842
55842
65941
75941
85941
95941
105941
115941
125941
135941
145842
155842
165842
175644
185644
195644
205545
215545
225644
235644
245644
255644
265644
275743
285743
295842
305842
315842

Chance of precipitation in July

Any precipitation

Pasadena gets around 3.6 in of rain over 12.7 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 42% and peaks near 45% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
145
244
343
443
542
642
741
841
941
1042
1142
1242
1343
1443
1543
1643
1743
1843
1943
2043
2142
2242
2342
2441
2541
2640
2740
2839
2939
3039
3139

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 63% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11255834
21146034
31146034
41146034
51136233
61136233
70136432
80136432
90036631
100036631
110036631
120036631
130036631
140036532
150046432
160046432
170046432
180046432
190046432
200046333
210146233
220146233
230156034
240156034
250156133
260156133
270156232
280156232
290156331
300156331
310156331

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 13 h 54 min at the start of July to 13 h 30 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 5:28 AM to 5:43 AM, and sunset from 7:21 PM to 7:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:287:21
213.95:287:21
313.95:287:21
413.95:297:21
513.95:297:21
613.85:307:21
713.85:307:20
813.85:307:20
913.85:317:20
1013.85:317:20
1113.85:327:20
1213.85:327:20
1313.85:337:19
1413.85:337:19
1513.75:347:19
1613.75:347:18
1713.75:357:18
1813.75:357:18
1913.75:367:17
2013.75:377:17
2113.75:377:17
2213.65:387:16
2313.65:387:16
2413.65:397:15
2513.65:397:15
2613.65:407:14
2713.55:417:13
2813.55:417:13
2913.55:427:12
3013.55:427:12
3113.55:437:11

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.21 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.6 kWh/m² to a high of 6.21 kWh/m² in July across the year — July's 6.21 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.1Intense
66.2Intense
76.2Intense
86.2Intense
96.2Intense
106.2Intense
116.2Intense
126.2Intense
136.2Intense
146.2Intense
156.2Intense
166.2Intense
176.2Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
316.2Intense
Planning a trip in July

Hazard calendar for Pasadena

In seasonPeak

In July, Pasadena sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.

Pasadena sits in the Atlantic hurricane belt; the season peaks August–October.

Atlantic hurricane
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is July a good time to visit Pasadena?

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

3.3
Sightseeing
11th-best month of the year
5.8
Beach & pool
6th-best month of the year

July is a weaker month for outdoor sightseeing in Pasadena.

What to pack for Pasadena in July

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

In July, Pasadena sees daytime highs around 91°F and nights near 76°F. Pack light clothes and sun protection. Worth having: rain gear. About 13 days see rain.

light clothessun protectionrain gear

Sea temperature near Pasadena in July

The nearest coast averages about 85°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 39 mi away) is warmest in August at about 86°F and coldest in January near 59°F.

It's comfortable for a long swim from Apr 3 to Nov 25 — about 7.8 months when the water holds above 68°F.

60°70°80°90°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan59Cool
Feb60Cool
Mar64Cool
Apr71Refreshing
May78Warm
Jun83Tropical
Jul85Tropical
Aug86Tropical
Sep84Tropical
Oct78Warm
Nov70Refreshing
Dec63Cool

UV index in Pasadena 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 Pasadena peaks around July 20 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 20UV 11Dec 21UV 4
UV index (midday)Level
Jan4Moderate
Feb6High
Mar6High
Apr10Very high
May10Extreme
Jun10Extreme
Jul11Extreme
Aug11Extreme
Sep8Very high
Oct6High
Nov5Moderate
Dec4Moderate

Air quality in Pasadena 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 Pasadena is worst in July — around 24 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (December, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1523 µg/m³Dec 2010 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar12Moderate
Apr12Moderate
May16Moderate
Jun20Moderate
Jul24Moderate
Aug18Moderate
Sep15Moderate
Oct11Good
Nov10Good
Dec10Good
Location & terrain

Where is Pasadena?

Pasadena sits at 29.7°N, 95.2°W, 30 ft above sea level, in United States. The nearest listed city is South Houston, 2.5 mi away.

Topography around Pasadena

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

Within 2 miles, the terrain around Pasadena has only modest variations in elevation — a maximum elevation change of 56 ft around an average of 33 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 259 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 371 ft.

The land around Pasadena is covered by artificial surfaces (48%) and trees (39%) within 2 miles, artificial surfaces (39%) and trees (37%) within 10 miles, and trees (39%) and grassland (24%) within 50 miles.

2 miles
56 ft
10 miles
259 ft
50 miles
371 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
July weather nearby: South Houston 2.5 mi · Deer Park 5.0 mi · Cloverleaf 6.2 mi · Channelview 8.1 mi · Pearland 9.9 mi · Houston 11 mi · Friendswood 11 mi · La Porte 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 Pasadena (29.6911°, -95.2091°, elevation 30 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).