Galveston weather in July

In July, Galveston sees average daytime highs of 84°F and overnight lows near 81°F, with 3.7 in of rain across 11.6 wet days and about 13.7 hours of daylight. It is the 2nd-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 84°F through the month. The sky is clear or mostly clear about 47% of the time in July, and the air most often feels miserable.

Daylight stretches from about 13 h 54 min at the start of July to 13 h 24 min by month's end. Set against the rest of the year, July is Galveston's 6th-clearest and 11th-windiest month. For the whole year in context, see Galveston's year-round climate.

Daytime high
84°
2nd warmest
Overnight low
81°
12th coldest
Rainfall
3.7 in
11.6 wet days
Daylight
13 h 42 min
5:34 AM – 7:16 PM
Cloud cover
49%
6th clearest
Wind
11 mph
11th windiest
Solar energy
6.42 kWh/m²
Travel score
5.4
out of 10

Galveston is city in and county seat of Galveston County, Texas, United States; port and coastal city.

Density
93/km²
people per km²
Founded
1785

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 84°F through the month.

A typical July day in Galveston reaches about 84°F in the afternoon and slips back to 81°F overnight — a 4°F spread between the day's warmth and the night's chill. On most days the high lands between 83°F and 86°F. Set against its neighbours, July runs about 2°F warmer than June and on par with August.

75°80°85°90°95°151015202531
Avg high (°F)Avg low (°F)
18480
28480
38480
48480
58480
68481
78481
88481
98481
108481
118481
128481
138481
148481
158481
168581
178581
188581
198581
208581
218581
228581
238581
248581
258581
268581
278581
288581
298581
308581
318581

How July really feels in Galveston

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
heat index over the day's high
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.

Galveston weather by month

How July compares with the rest of the year at a glance. July is the 2nd-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan60° / 53°4.810.410.34.7
Feb61° / 55°3.58.710.95.2
Mar66° / 61°3.47.911.86.4
Apr72° / 67°3.57.212.77.3
May78° / 74°3.07.613.47.4
Jun83° / 79°4.310.713.86.1
Jul84° / 81°3.711.613.75.4
Aug85° / 81°4.513.113.15.0
Sep83° / 78°6.312.512.25.8
Oct77° / 71°4.78.611.37.4
Nov69° / 62°4.48.210.56.8
Dec62° / 55°4.510.110.25.5

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% 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 38%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16139
26139
36238
46238
56337
66436
76436
86535
96535
106436
116337
126337
136337
146238
156139
166040
176040
185941
195941
205941
215941
225941
235941
245941
256040
266139
276139
286238
296238
306238
316337

Chance of precipitation in July

Any precipitation

Galveston gets around 3.7 in of rain over 11.6 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 38% and peaks near 39% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
138
238
337
437
536
636
736
836
937
1037
1137
1238
1338
1438
1538
1638
1739
1839
1939
2039
2139
2239
2339
2439
2538
2638
2738
2837
2937
3037
3136

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the miserable band about 78% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
123167
213168
313069
412970
512871
612772
712673
802674
902575
1002476
1102476
1202377
1302278
1402179
1502179
1602080
1701981
1811980
1911881
2011881
2111782
2211782
2311683
2411683
2511584
2621583
2721583
2821583
2921583
3021484
3111485

Wind in July

Winds average 11 mph in July.

Across July, daily wind ranges from about 10 mph on the calmest days to 11 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
111light breeze
211light breeze
311light breeze
411light breeze
511light breeze
611light breeze
711light breeze
811light breeze
911light breeze
1011light breeze
1111light breeze
1211light breeze
1311light breeze
1411light breeze
1511light breeze
1611light breeze
1710light breeze
1810light breeze
1910light breeze
2010light breeze
2110light breeze
2210light breeze
2310light breeze
2410light breeze
2510light breeze
2610light breeze
2710light breeze
2810light breeze
2910light breeze
3010light breeze
3110light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 13 h 54 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 30 minutes over July. Sunrise moves from 5:27 AM to 5:42 AM, and sunset from 7:18 PM to 7:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:277:18
213.85:277:18
313.85:287:18
413.85:287:18
513.85:287:18
613.85:297:18
713.85:297:18
813.85:307:18
913.85:307:18
1013.85:317:18
1113.85:317:17
1213.85:327:17
1313.75:327:17
1413.75:337:17
1513.75:337:16
1613.75:347:16
1713.75:347:16
1813.75:357:15
1913.75:357:15
2013.65:367:15
2113.65:367:14
2213.65:377:14
2313.65:377:13
2413.65:387:13
2513.65:397:12
2613.55:397:12
2713.55:407:11
2813.55:407:10
2913.55:417:10
3013.55:417:09
3113.45:427:09

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.42 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.75 kWh/m² to a high of 6.42 kWh/m² in July across the year — July's 6.42 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.4Intense
36.4Intense
46.4Intense
56.4Intense
66.4Intense
76.4Intense
86.4Intense
96.4Intense
106.4Intense
116.4Intense
126.4Intense
136.4Intense
146.4Intense
156.4Intense
166.4Intense
176.4Intense
186.4Intense
196.4Intense
206.4Intense
216.4Intense
226.4Intense
236.4Intense
246.4Intense
256.4Intense
266.4Intense
276.4Intense
286.4Intense
296.4Intense
306.4Intense
316.4Intense
Planning a trip in July

Hazard calendar for Galveston

In seasonPeak

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

Galveston 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 Galveston?

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

5.4
Sightseeing
9th-best month of the year
6.9
Beach & pool
2nd-best month of the year

July is a reasonable time to visit Galveston for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Galveston in July

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

In July, Galveston sees daytime highs around 84°F and nights near 81°F. Pack light clothes and sun protection. Worth having: rain gear. About 12 days see rain.

light clothessun protectionrain gear

Sea temperature near Galveston 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 12 mi away) is warmest in August at about 86°F and coldest in January near 58°F.

It's comfortable for a long swim from Apr 4 to Nov 21 — about 7.6 months when the water holds above 68°F.

60°70°80°90°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan58Bracing
Feb59Cool
Mar64Cool
Apr71Refreshing
May78Warm
Jun83Tropical
Jul85Tropical
Aug86Tropical
Sep84Tropical
Oct78Warm
Nov69Refreshing
Dec62Cool

UV index in Galveston 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 Galveston peaks around July 18 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 18UV 11Dec 21UV 4
UV index (midday)Level
Jan4Moderate
Feb6High
Mar7High
Apr10Extreme
May10Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep9Very high
Oct6High
Nov5High
Dec4Moderate

Air quality in Galveston 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 Galveston is worst in July — around 19 µg/m³ PM2.5 (moderate), about 3.4× the cleanest month (December, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1519 µg/m³Dec 176 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb7Good
Mar8Good
Apr9Good
May12Good
Jun16Moderate
Jul19Moderate
Aug13Moderate
Sep10Good
Oct6Good
Nov6Good
Dec6Good
Location & terrain

Where is Galveston?

Galveston sits at 29.3°N, 94.8°W, 7 ft above sea level, in United States. The nearest listed city is Texas City, 8.7 mi away.

Topography around Galveston

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

Within 2 miles, the terrain around Galveston has only modest variations in elevation — a maximum elevation change of 43 ft around an average of 7 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 62 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 236 ft.

The land around Galveston is covered by artificial surfaces (41%) and water (32%) within 2 miles, water (80%) within 10 miles, and water (45%) within 50 miles.

2 miles
43 ft
10 miles
62 ft
50 miles
236 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
July weather nearby: Texas City 8.7 mi · La Marque 11 mi · Dickinson 19 mi · League City 23 mi · Alvin 28 mi · La Porte 29 mi · Friendswood 29 mi · Baytown 32 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 Galveston (29.3013°, -94.7977°, elevation 7 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).