Casselberry weather in July

In July, Casselberry sees average daytime highs of 89°F and overnight lows near 75°F, with 5.9 in of rain across 21.9 wet days and about 13.6 hours of daylight. It is the 1st-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 89°F through the month. The sky is clear or mostly clear about 16% 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 Casselberry's 11th-clearest and 12th-windiest month. For the whole year in context, see Casselberry's year-round climate.

Daytime high
89°
1st warmest
Overnight low
75°
11th coldest
Rainfall
5.9 in
21.9 wet days
Daylight
13 h 42 min
5:41 AM – 7:21 PM
Cloud cover
69%
11th clearest
Wind
4 mph
12th windiest
Solar energy
5.82 kWh/m²
Travel score
2.9
out of 10

Casselberry is city in Seminole County, Florida, United States.

Density
1,383/km²
people per km²
Founded
1940

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 89°F through the month.

A typical July day in Casselberry reaches about 89°F in the afternoon and slips back to 75°F overnight — a 14°F spread between the day's warmth and the night's chill. On most days the high lands between 85°F and 93°F. Set against its neighbours, July runs on par with June and on par with August.

70°80°90°151015202531
Avg high (°F)Avg low (°F)
18975
28975
38975
48975
58975
68975
78975
88975
98975
108975
118975
128975
138975
148975
158975
168975
178975
189075
199075
209075
219075
229075
239075
249075
259075
269075
279075
289076
299076
309076
319076

How July really feels in Casselberry

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.

Casselberry weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan69° / 50°2.16.410.47.1
Feb72° / 53°2.06.6117.2
Mar76° / 57°2.36.311.87.6
Apr81° / 62°2.17.112.76.9
May86° / 68°2.89.413.45.2
Jun89° / 73°5.819.913.83.3
Jul89° / 75°5.921.913.62.9
Aug89° / 75°6.522.9132.8
Sep87° / 74°5.218.412.23.7
Oct82° / 67°2.710.511.36.1
Nov76° / 59°1.35.410.67.7
Dec71° / 53°2.05.310.27.4

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 17% of July, with mostly cloudy or overcast conditions the remaining 67%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13169
23268
33169
43169
53169
63367
73367
83268
93367
103367
113466
123466
133466
143565
153466
163565
173466
183565
193466
203565
213565
223565
233565
243466
253466
263367
273367
283268
293268
303268
313268

Chance of precipitation in July

Any precipitation

Casselberry gets around 5.9 in of rain over 21.9 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 71% and peaks near 74% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
171
271
371
471
571
670
770
870
970
1069
1169
1269
1370
1470
1570
1671
1771
1871
1972
2072
2172
2272
2372
2472
2573
2673
2774
2874
2974
3074
3174

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 82% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
15878
24888
34879
448610
538710
638611
738512
838413
928414
1028315
1128315
1228216
1318316
1418217
1518217
1618118
1718118
1818118
1918118
2018118
2118118
2218118
2318118
2418118
2518118
2618118
2718019
2818019
2918019
3017920
3117920

Wind in July

Winds average 4 mph in July, the calmest month.

Across July, daily wind ranges from about 4 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
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

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 5:34 AM to 5:49 AM, and sunset from 7:23 PM to 7:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.85:347:23
213.85:357:23
313.85:357:23
413.85:367:23
513.85:367:23
613.85:367:23
713.85:377:23
813.85:377:23
913.75:387:22
1013.75:387:22
1113.75:397:22
1213.75:397:22
1313.75:407:22
1413.75:407:21
1513.75:417:21
1613.75:417:21
1713.65:427:20
1813.65:427:20
1913.65:437:20
2013.65:437:19
2113.65:447:19
2213.65:447:19
2313.65:457:18
2413.55:457:18
2513.55:467:17
2613.55:467:17
2713.55:477:16
2813.55:487:15
2913.45:487:15
3013.45:497:14
3113.45:497:14

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.82 kWh/m².

For context, solar energy here swings from a low near 2.92 kWh/m² to a high of 6.19 kWh/m² in May across the year — July's 5.82 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.6Bright
315.6Bright
Planning a trip in July

Hazard calendar for Casselberry

In seasonPeak

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

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

Casselberry's rainy season runs June–September, when most of the year's rain falls.

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

Is July a good time to visit Casselberry?

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

2.9
Sightseeing
11th-best month of the year
4.6
Beach & pool
10th-best month of the year

July is a weaker month for outdoor sightseeing in Casselberry.

What to pack for Casselberry in July

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

In July, Casselberry sees daytime highs around 89°F and nights near 75°F. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

Sea temperature near Casselberry in July

The nearest coast averages about 82°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 41 mi away) is warmest in September at about 82°F and coldest in February near 67°F.

It's comfortable for a long swim from Mar 15 to Jan 17 — about 10.2 months when the water holds above 68°F.

65°70°75°80°85°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan68Refreshing
Feb67Cool
Mar68Refreshing
Apr71Refreshing
May76Warm
Jun80Warm
Jul82Warm
Aug82Warm
Sep82Warm
Oct79Warm
Nov74Refreshing
Dec70Refreshing

UV index in Casselberry 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 Casselberry peaks around July 15 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 15UV 11Dec 20UV 4
UV index (midday)Level
Jan4Moderate
Feb6High
Mar8Very high
Apr8Very high
May9Very high
Jun10Extreme
Jul11Extreme
Aug10Very high
Sep9Very high
Oct7High
Nov5High
Dec4Moderate

Air quality in Casselberry 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 Casselberry is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (December, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1019 µg/m³Dec 137 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar15Moderate
Apr13Moderate
May13Moderate
Jun19Moderate
Jul19Moderate
Aug16Moderate
Sep11Good
Oct9Good
Nov8Good
Dec7Good
Location & terrain

Where is Casselberry?

Casselberry sits at 28.7°N, 81.3°W, 56 ft above sea level, in United States. The nearest listed city is Winter Springs, 1.9 mi away.

Topography around Casselberry

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

Within 2 miles, the terrain around Casselberry has only modest variations in elevation — a maximum elevation change of 95 ft around an average of 79 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 164 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 322 ft.

The land around Casselberry is covered by trees (48%) and artificial surfaces (38%) within 2 miles, trees (57%) and artificial surfaces (24%) within 10 miles, and trees (55%) within 50 miles.

2 miles
95 ft
10 miles
164 ft
50 miles
322 ft
treesgrasslandartificial surfaceswaterwetland
July weather nearby: Winter Springs 1.9 mi · Altamonte Springs 2.5 mi · Maitland 4.3 mi · Winter Park 5.6 mi · Lake Mary 5.6 mi · Wekiwa Springs 6.2 mi · Oviedo 7.5 mi · Sanford 9.3 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 Casselberry (28.6778°, -81.3278°, elevation 56 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).