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Climate
Statistics · City
Normal high in September in Islamorada
1991–2020 · 1 data point
257 of 391 · Towns of Florida
Updated Oct 22, 2026
Source: NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020, 1991–2020
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Latest value · 1991–2020
88 °F
Towns of Florida · 2020
257 of 391
Place 1 is the highest value.
Weather through the year long-term average 1991–2020 · Islamorada weather station, 1 km away
75°
65°
Jan
77°
67°
Feb
78°
69°
Mar
81°
72°
Apr
84°
76°
May
87°
78°
Jun
89°
80°
Jul
89°
79°
Aug
88°
79°
Sep
85°
76°
Oct
80°
71°
Nov
78°
68°
Dec
1.0
1.3
1.3
2.8
2.4
5.1
3.9
5.6
8.1
4.5
1.6
1.2
High and low, °F
Precipitation, inches
Source: NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020, 1991–2020
Ranking · Towns of Florida
2020 · Place 1 is the highest value.
| # | Territory | Normal high in September | |
|---|---|---|---|
| 1 | Crystal Springs | 92 °F | |
| 2 | Dover | 92 °F | |
| 3 | Plant City | 92 °F | |
| 4 | Valrico | 92 °F | |
| 5 | Chokoloskee | 91 °F | |
| 6 | Florida City | 91 °F | |
| 7 | Belle Glade | 91 °F | |
| 8 | South Bay | 91 °F | |
| 9 | Grove City | 91 °F | |
| 10 | North Port | 91 °F | |
| 11 | Port Charlotte | 91 °F | |
| 12 | Punta Gorda | 91 °F | |
| 13 | Canal Point | 90 °F | |
| 14 | Pahokee | 90 °F | |
| 15 | Ave Maria | 90 °F | |
| 16 | Immokalee | 90 °F | |
| 17 | Anna Maria | 90 °F | |
| 18 | Bayshore Gardens | 90 °F | |
| 19 | Bloomingdale | 90 °F | |
| 20 | Bradenton | 90 °F | |
| 21 | Bradenton Beach | 90 °F | |
| 22 | Brandon | 90 °F | |
| 23 | Carrollwood | 90 °F | |
| 24 | Citrus Park | 90 °F | |
| 25 | Cortez | 90 °F | |
| … | |||
| 254 | Fort Lauderdale | 88 °F | |
| 255 | Hallandale Beach | 88 °F | |
| 256 | Hollywood | 88 °F | |
| 257 | Islamorada | 88 °F | |
| 258 | Lower Grand Lagoon | 88 °F | |
| 259 | Panama City Beach | 88 °F | |
| 260 | Plantation | 88 °F | |
| … |
Source: NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020, 2020
What it means
The typical daytime high in September.
How it is calculated
Average daily maximum in September at the nearest weather station with a long record: 1991–2020, or the latest ten years.
Climate
Statistics: Islamorada
Average daily high
83 °F
1991–2020
Average daily low
73 °F
1991–2020
Normal annual rainfall
38.7 in
1991–2020
Days at 90 °F (32 °C) or hotter
30
1991–2020
Days with 0.1 in (2.5 mm) of rain or more
56
1991–2020
Average annual temperature
78 °F
2025 · Monroe County
Annual precipitation
40.4 in
2025 · Monroe County
CO₂ emissions per person
13.6
2024 · United States