West Melbourne weather in September

In September, West Melbourne sees average daytime highs of 86°F and overnight lows near 76°F, with 6.0 in of rain across 20.7 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 86°F through the month. The sky is clear or mostly clear about 22% 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 West Melbourne's 11th-clearest and 9th-windiest month. For the whole year in context, see West Melbourne's year-round climate.

Daytime high
86°
4th warmest
Overnight low
76°
10th coldest
Rainfall
6.0 in
20.7 wet days
Daylight
12 h 12 min
6:12 AM – 6:22 PM
Cloud cover
67%
11th clearest
Wind
6 mph
9th windiest
Solar energy
4.81 kWh/m²
Travel score
3.7
out of 10

West Melbourne is city in Florida, United States of America.

Density
742/km²
people per km²
Founded
1959

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 86°F through the month.

A typical September day in West Melbourne reaches about 86°F in the afternoon and slips back to 76°F overnight — a 10°F spread between the day's warmth and the night's chill. On most days the high lands between 83°F and 89°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)
18776
28776
38776
48776
58776
68776
78776
88776
98776
108676
118676
128676
138676
148676
158676
168676
178676
188676
198675
208675
218675
228575
238575
248575
258575
268575
278575
288574
298574
308574

How September really feels in West Melbourne

Once humidity and wind are folded in, September averages 30 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
30
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.

West Melbourne weather by month

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

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan71° / 56°2.16.210.47.2
Feb73° / 57°1.86.7117.4
Mar76° / 61°2.26.611.87.6
Apr80° / 65°2.0712.77.1
May84° / 71°3.010.213.45.6
Jun87° / 75°6.420.313.73.6
Jul88° / 76°6.322.613.63.1
Aug88° / 77°6.724.4132.9
Sep86° / 76°6.020.712.23.7
Oct82° / 71°3.311.911.36.0
Nov77° / 64°1.56.610.67.5
Dec73° / 59°1.65.310.37.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 61%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13367
23367
33466
43466
53466
63466
73565
83565
93664
103664
113763
123763
133961
143961
153961
164060
174060
184060
194060
204159
214159
224159
234258
244258
254258
264357
274456
284456
294456
304456

Chance of precipitation in September

Any precipitation

West Melbourne gets around 6.0 in of rain over 20.7 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 68% and peaks near 76% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
176
276
376
475
575
675
774
873
973
1072
1171
1270
1370
1469
1568
1667
1767
1866
1966
2065
2165
2264
2364
2463
2563
2662
2762
2861
2961
3060

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 (%)
10036136
20036235
30036334
40036433
50036631
60046630
70046729
80046927
90056926
100057025
110057025
120067024
130067123
140077023
150087022
160087022
170096922
180196921
1901106821
2001106821
2101116820
2202116819
2302126719
2402136718
2513136617
2613146517
2714146516
2814156416
2915156415
3025166215

Wind in September

Winds average 6 mph in September.

Across September, daily wind ranges from about 6 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

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 6:40 PM to 6:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.66:056:40
212.66:056:39
312.56:066:38
412.56:066:36
512.56:076:35
612.46:076:34
712.46:086:33
812.46:086:32
912.46:096:30
1012.36:096:29
1112.36:106:28
1212.36:106:27
1312.36:116:26
1412.26:116:24
1512.26:126:23
1612.26:126:22
1712.16:126:21
1812.16:136:19
1912.16:136:18
2012.16:146:17
2112.06:146:16
2212.06:156:15
2312.06:156:13
2411.96:166:12
2511.96:166:11
2611.96:176:10
2711.86:176:08
2811.86:186:07
2911.86:186:06
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 4.81 kWh/m².

For context, solar energy here swings from a low near 3.02 kWh/m² to a high of 6.34 kWh/m² in May across the year — September's 4.81 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.1Bright
45.1Bright
55.1Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.6Bright
244.6Bright
254.6Bright
264.5Bright
274.5Bright
284.5Bright
294.5Bright
304.4Bright
Planning a trip in September

Hazard calendar for West Melbourne

In seasonPeak

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

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

West Melbourne'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 West Melbourne?

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

3.7
Sightseeing
9th-best month of the year
5.1
Beach & pool
9th-best month of the year

September is a weaker month for outdoor sightseeing in West Melbourne.

What to pack for West Melbourne in September

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

In September, West Melbourne sees daytime highs around 86°F and nights near 76°F. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

light clothesrain gearsun protection

Sea temperature near West Melbourne in September

The nearest coast averages about 83°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 17 mi away) is warmest in September at about 83°F and coldest in February near 69°F.

The water stays above 68°F all year — warm enough for a swim any month.

70°75°80°85°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan70Refreshing
Feb69Refreshing
Mar71Refreshing
Apr74Refreshing
May77Warm
Jun80Warm
Jul82Warm
Aug82Tropical
Sep83Tropical
Oct81Warm
Nov76Warm
Dec73Refreshing

UV index in West Melbourne 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 West Melbourne peaks around July 15 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 15UV 11Dec 19UV 4
UV index (midday)Level
Jan5Moderate
Feb7High
Mar9Very high
Apr8Very high
May10Very high
Jun11Extreme
Jul11Extreme
Aug10Extreme
Sep9Very high
Oct7Very high
Nov5High
Dec4Moderate

Air quality in West Melbourne 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 West Melbourne is worst in July — around 20 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (December, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1320 µg/m³Dec 107 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar17Moderate
Apr14Moderate
May13Moderate
Jun19Moderate
Jul20Moderate
Aug16Moderate
Sep11Good
Oct9Good
Nov7Good
Dec7Good
Location & terrain

Where is West Melbourne?

West Melbourne sits at 28.1°N, 80.7°W, 30 ft above sea level, in United States. The nearest listed city is Melbourne, 3.1 mi away.

Topography around West Melbourne

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

Within 2 miles, the terrain around West Melbourne has only modest variations in elevation — a maximum elevation change of 52 ft around an average of 33 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 105 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 246 ft.

The land around West Melbourne is covered by trees (41%) and artificial surfaces (39%) within 2 miles, trees (31%), water (29%) and grassland (22%) within 10 miles, and water (35%), trees (30%) and grassland (27%) within 50 miles.

2 miles
52 ft
10 miles
105 ft
50 miles
246 ft
treesgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Melbourne 3.1 mi · Palm Bay 5.0 mi · Rockledge 20 mi · Merritt Island 20 mi · Sebastian 21 mi · Cocoa 22 mi · Vero Beach 34 mi · Vero Beach South 35 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 West Melbourne (28.0717°, -80.6534°, 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).