Florida weather in September

In September, Florida sees average daytime highs of 32°C and overnight lows near 24°C, with 154 mm of rain across 21.3 wet days and about 12.1 hours of daylight. It is the 4th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 20% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 24 min at the start of September to 11 h 48 min by month's end. Set against the rest of the year, September is Florida's 11th-clearest and 12th-windiest month. For the whole year in context, see Florida's year-round climate.

Daytime high
32°
4th warmest
Overnight low
24°
10th coldest
Rainfall
154 mm
21.3 wet days
Daylight
12 h 06 min
6:04 AM – 6:11 PM
Cloud cover
66%
11th clearest
Wind
10 km/h
12th windiest
Solar energy
5.61 kWh/m²
Travel score
3.0
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical September day in Florida reaches about 32°C in the afternoon and slips back to 24°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 33°C. Set against its neighbours, September runs about 1°C cooler than August and about 1°C warmer than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13224
23224
33224
43224
53224
63224
73224
83224
93224
103224
113224
123224
133224
143224
153224
163224
173224
183224
193224
203224
213224
223224
233224
243124
253124
263124
273124
283124
293124
303124

How September really feels in Florida

Once humidity and wind are folded in, September averages 30 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
30
heat index over the day's high
Days feeling ≤ C
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.

Florida 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 (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 20°152.610.87.2
Feb29° / 20°182.411.36.8
Mar30° / 20°214.311.86.0
Apr31° / 22°417.312.54.9
May31° / 23°15115.6133.8
Jun32° / 24°14618.613.33.2
Jul33° / 24°9915.313.23.2
Aug33° / 25°12417.312.73.0
Sep32° / 24°15421.312.13.0
Oct30° / 23°11617.711.54.0
Nov29° / 22°367.9115.9
Dec28° / 21°173.510.76.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 20% of September, with mostly cloudy or overcast conditions the remaining 60%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14456
24456
34258
44258
54258
64357
74258
84159
94159
104159
114258
124060
134060
144060
154159
164159
174060
184060
194060
204060
214060
223961
234060
243961
253862
263763
273763
283763
293763
303763

Chance of precipitation in September

Any precipitation

Florida gets around 154 mm of rain over 21.3 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 71% and peaks near 72% on the wettest days.

0%20%40%60%80%151015202530
Rain chance (%)
168
268
368
469
569
669
769
869
970
1070
1170
1270
1371
1471
1571
1672
1772
1872
1972
2072
2172
2272
2372
2472
2572
2672
2771
2871
2970
3070

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 78% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
17822
27822
37822
47822
57822
67822
77822
87822
97822
107723
117723
127723
137723
147723
157723
167723
177723
187723
197723
207822
217822
227921
238020
248020
258020
268119
278119
288119
298218
308218

Wind in September

Winds average 10 km/h in September, the calmest month.

Across September, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 24 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 36 minutes over September. Sunrise moves from 6:00 AM to 6:07 AM, and sunset from 6:26 PM to 5:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:006:26
212.46:006:25
312.46:006:24
412.46:006:23
512.46:016:22
612.36:016:21
712.36:016:20
812.36:016:19
912.36:026:18
1012.26:026:17
1112.26:026:16
1212.26:036:15
1312.26:036:14
1412.26:036:13
1512.16:036:12
1612.16:046:11
1712.16:046:10
1812.16:046:09
1912.16:046:08
2012.06:056:07
2112.06:056:06
2212.06:056:05
2312.06:056:04
2412.06:066:03
2511.96:066:02
2611.96:066:01
2711.96:076:00
2811.96:075:59
2911.86:075:58
3011.86:075:57

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.61 kWh/m².

For context, solar energy here swings from a low near 3.91 kWh/m² to a high of 6.65 kWh/m² in July across the year — September's 5.61 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.8Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.6Bright
165.6Bright
175.6Bright
185.5Bright
195.5Bright
205.5Bright
215.4Bright
225.4Bright
235.4Bright
245.3Bright
255.3Bright
265.3Bright
275.2Bright
285.2Bright
295.2Bright
305.1Bright
Planning a trip in September

Hazard calendar for Florida

In seasonPeak

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

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

Florida's rainy season runs May–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 Florida?

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

3.0
Sightseeing
11th-best month of the year
4.7
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Florida.

What to pack for Florida in September

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

In September, Florida sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

light clothesrain gearsun protection

Sea temperature near Florida in September

The nearest coast averages about 30°C 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 45 km away) is warmest in August at about 30°C and coldest in January near 24°C.

The water stays above 20°C all year — warm enough for a swim any month.

22°24°26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan24Warm
Feb25Warm
Mar26Warm
Apr27Warm
May29Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov27Warm
Dec25Warm

UV index in Florida in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Florida peaks around June 23 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highHighJun 23UV 12Dec 15UV 6
UV index (midday)Level
Jan7Very high
Feb9Very high
Mar11Extreme
Apr11Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug11Extreme
Sep11Extreme
Oct9Very high
Nov7High
Dec6High

Air quality in Florida 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 Florida is worst in June — around 23 µg/m³ PM2.5 (moderate), about 4.0× the cleanest month (December, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 2322 µg/m³Dec 146 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb8Good
Mar10Good
Apr14Moderate
May12Moderate
Jun23Moderate
Jul22Moderate
Aug18Moderate
Sep13Moderate
Oct10Good
Nov6Good
Dec6Good
Location & terrain

Where is Florida?

Florida sits at 21.5°N, 78.2°W, 68 m above sea level, in Cuba. The nearest listed city is Vertientes, 31 km away.

VenezuelaMinas

Topography around Florida

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

Within 3 km, the terrain around Florida has only modest variations in elevation — a maximum elevation change of 38 m around an average of 63 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 97 m; within 80 km, significant variations in elevation — a maximum elevation change of 327 m.

The land around Florida is covered by grassland (43%) and trees (29%) within 3 km, grassland (52%) and trees (37%) within 16 km, and trees (36%), grassland (28%) and water (25%) within 80 km.

3 km
38 m
16 km
97 m
80 km
327 m
treesgrasslandcroplandartificial surfaceswaterwetlandmangroves
September weather nearby: Vertientes 31 km · Camagüey 36 km · Esmeralda 38 km · Baraguá 45 km · Primero de Enero 51 km · Jimaguayú 52 km · Venezuela 63 km · Minas 64 km

Cuba travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / C / L
110 V · 60 Hz
Prices
≈ 39% of US
price level, 2011
GDP per capita
$9,605
2020
Happiness
5.4 / 10
World Happiness, 2011
Homicide rate
4.5
per 100k, 2019
Road deaths
8.9
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 515
Religion
Christian 59%none 23%folk religion 18%

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 Florida (21.5264°, -78.2255°, elevation 68 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. 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).