Cocoa weather in September

In September, Cocoa sees average daytime highs of 83°F and overnight lows near 77°F, with 5.9 in of rain across 19 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 83°F through the month. The sky is clear or mostly clear about 27% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 36 min at the start of September to 11 h 48 min by month's end. Set against the rest of the year, September is Cocoa's 11th-clearest and 9th-windiest month. For the whole year in context, see Cocoa's year-round climate.

Daytime high
83°
4th warmest
Overnight low
77°
10th coldest
Rainfall
5.9 in
19 wet days
Daylight
12 h 12 min
6:12 AM – 6:22 PM
Cloud cover
64%
11th clearest
Wind
9 mph
9th windiest
Solar energy
4.83 kWh/m²
Travel score
4.5
out of 10

Cocoa is city in Brevard County, Florida, United States.

Density
444/km²
people per km²
Founded
1860

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 83°F through the month.

A typical September day in Cocoa reaches about 83°F in the afternoon and slips back to 77°F overnight — a 6°F spread between the day's warmth and the night's chill. On most days the high lands between 81°F and 86°F. Set against its neighbours, September runs about 2°F cooler than August and about 4°F warmer than October.

70°80°90°151015202530
Avg high (°F)Avg low (°F)
18478
28478
38478
48478
58478
68478
78478
88477
98477
108477
118377
128377
138377
148377
158377
168377
178377
188377
198377
208377
218377
228377
238376
248376
258376
268276
278276
288276
298276
308276

How September really feels in Cocoa

Once humidity and wind are folded in, September averages 13 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
13
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

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

Cocoa weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan68° / 58°2.36.910.46.9
Feb69° / 59°2.16.6117.0
Mar72° / 63°2.36.511.87.4
Apr76° / 67°1.96.612.77.7
May80° / 72°2.68.813.47.0
Jun83° / 76°4.717.813.84.7
Jul85° / 78°3.918.813.64.2
Aug85° / 78°5.321.5133.9
Sep83° / 77°5.91912.24.5
Oct80° / 73°3.511.911.36.5
Nov74° / 66°1.86.710.67.5
Dec70° / 61°2.06.610.27.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 57%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13664
23664
33664
43763
53763
63664
73862
83862
93961
103961
114159
124159
134357
144357
154456
164456
174555
184654
194753
204654
214852
224852
234852
244852
254951
264852
274852
284951
294951
304951

Chance of precipitation in September

Any precipitation

Cocoa gets around 5.9 in of rain over 19 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 63% and peaks near 69% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
169
269
368
468
568
667
767
866
965
1065
1164
1263
1362
1462
1561
1661
1761
1860
1960
2060
2160
2261
2361
2461
2561
2661
2760
2860
2960
3059

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 67% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10035740
20045838
30046036
40046234
50046432
60046630
70056629
80056827
90056926
100067024
110067123
120167122
130177121
140187120
150187120
160197119
170197119
1801107118
1901107118
2002117017
2102117017
2202127016
2313136815
2413136815
2514146714
2614146813
2715156613
2826166412
2926166412
3027176212

Wind in September

Winds average 9 mph in September.

Across September, daily wind ranges from about 8 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (mph)Feels
18light breeze
28light breeze
39light breeze
49light breeze
59light breeze
69light breeze
79light breeze
89light breeze
99light breeze
109light breeze
119light breeze
129light breeze
139light breeze
149light breeze
159light breeze
169light breeze
179light breeze
189light breeze
199light breeze
209light breeze
219light breeze
229light breeze
239light breeze
249light breeze
259light breeze
2610light breeze
2710light breeze
2810light breeze
2910light breeze
3010light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 36 min at the start of September to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over September. Sunrise moves from 6:05 AM to 6:19 AM, and sunset from 6:41 PM to 6:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.66:056:41
212.66:056:39
312.56:066:38
412.56:066:37
512.56:076:36
612.56:076:35
712.46:086:33
812.46:086:32
912.46:096:31
1012.36:096:30
1112.36:106:28
1212.36:106:27
1312.36:116:26
1412.26:116:25
1512.26:126:24
1612.26:126:22
1712.16:136:21
1812.16:136:20
1912.16:146:19
2012.16:146:17
2112.06:156:16
2212.06:156:15
2312.06:166:14
2411.96:166:12
2511.96:176:11
2611.96:176:10
2711.86:186:09
2811.86:186:08
2911.86:196:06
3011.86:196:05

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.83 kWh/m².

For context, solar energy here swings from a low near 2.96 kWh/m² to a high of 6.4 kWh/m² in May across the year — September's 4.83 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.1Bright
55.1Bright
65.1Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
124.9Bright
134.9Bright
144.9Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.7Bright
214.7Bright
224.7Bright
234.6Bright
244.6Bright
254.6Bright
264.5Bright
274.5Bright
284.5Bright
294.4Bright
304.4Bright
Planning a trip in September

Hazard calendar for Cocoa

In seasonPeak

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

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

Cocoa's rainy season runs June–October, 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 September a good time to visit Cocoa?

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

4.5
Sightseeing
10th-best month of the year
5.4
Beach & pool
7th-best month of the year

September is a reasonable time to visit Cocoa for sightseeing.

What to pack for Cocoa in September

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

In September, Cocoa sees daytime highs around 83°F and nights near 77°F. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.

light clothesrain gearsun protection

Sea temperature near Cocoa in September

The nearest coast averages about 82°F in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 18 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 2 to Jan 31 — about 11 months when the water holds above 68°F.

65°70°75°80°85°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan69Refreshing
Feb67Cool
Mar69Refreshing
Apr72Refreshing
May76Warm
Jun80Warm
Jul81Warm
Aug82Warm
Sep82Tropical
Oct80Warm
Nov74Refreshing
Dec71Refreshing

UV index in Cocoa in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cocoa peaks around July 16 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 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 16UV 11Dec 19UV 4
UV index (midday)Level
Jan5Moderate
Feb6High
Mar8Very high
Apr8Very high
May9Very high
Jun10Extreme
Jul11Extreme
Aug10Extreme
Sep9Very high
Oct7High
Nov5High
Dec4Moderate

Air quality in Cocoa in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Cocoa 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 Cocoa?

Cocoa sits at 28.4°N, 80.7°W, 36 ft above sea level, in United States. The nearest listed city is Rockledge, 2.5 mi away.

Topography around Cocoa

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

Within 2 miles, the terrain around Cocoa has only modest variations in elevation — a maximum elevation change of 79 ft around an average of 20 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 157 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 246 ft.

The land around Cocoa is covered by water (39%), trees (32%) and artificial surfaces (21%) within 2 miles, trees (36%) and water (32%) within 10 miles, and water (38%) and trees (35%) within 50 miles.

2 miles
79 ft
10 miles
157 ft
50 miles
246 ft
treesgrasslandartificial surfaceswaterwetland
September weather nearby: Rockledge 2.5 mi · Merritt Island 3.7 mi · Titusville 16 mi · West Melbourne 22 mi · Melbourne 22 mi · Palm Bay 26 mi · Alafaya 31 mi · Saint Cloud 34 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 Cocoa (28.3861°, -80.742°, elevation 36 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).