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Statistics · City
Normal high in September in Osteen
1991–2020 · 1 data point
6 of 33 · 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
90 °F
Towns of Florida · 2020
6 of 33
Place 1 is the highest value.
Weather through the year long-term average 1991–2020 · Orlando Sanford Ap weather station, 11 km away
71°
50°
Jan
74°
52°
Feb
78°
56°
Mar
83°
61°
Apr
89°
67°
May
91°
73°
Jun
93°
74°
Jul
92°
75°
Aug
90°
73°
Sep
85°
67°
Oct
78°
58°
Nov
73°
53°
Dec
2.4
2.2
2.8
2.4
3.3
8.2
7.3
6.8
6.2
3.9
1.9
2.2
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 | Lithia | 92 °F | |
| 2 | Clair-Mel City | 90 °F | |
| 3 | Parrish | 90 °F | |
| 4 | North Venice | 90 °F | |
| 5 | LAUD LAKES | 90 °F | |
| 6 | Osteen | 90 °F | |
| 7 | East Naples | 90 °F | |
| 8 | South Naples | 90 °F | |
| 9 | Barefoot Bay | 89 °F | |
| 10 | Boca Del Mar | 89 °F | |
| 11 | Naval Air Station Key West | 89 °F | |
| 12 | Sandalfoot Cove | 89 °F | |
| 13 | Lower Sugarloaf Key | 89 °F | |
| 14 | Okaloosa Island | 89 °F | |
| 15 | Sandestin | 89 °F | |
| 16 | Sugarloaf Shores | 89 °F | |
| 17 | Summerland Key | 89 °F | |
| 18 | Toilla Segunda | 89 °F | |
| 19 | Upper Sugarloaf Key | 89 °F | |
| 20 | Duette | 88 °F | |
| 21 | Rosemary Beach | 88 °F | |
| 22 | Seacrest | 88 °F | |
| 23 | Pine Key | 88 °F | |
| 24 | St Lucie West | 88 °F | |
| 25 | Sun City | 88 °F | |
| 26 | Lake Worth Corridor | 88 °F | |
| 27 | St Johns | 88 °F | |
| 28 | Barberville | 88 °F | |
| 29 | Islandia | 87 °F | |
| 30 | Wilbur-By-The-Sea | 87 °F | |
| 31 | Ponte Vedra Beach | 86 °F | |
| 32 | Amelia Island | 86 °F | |
| 33 | Mayport Naval Station | 86 °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
Osteen in numbers
Average daily high
83 °F
1991–2020
Average daily low
63 °F
1991–2020
Normal annual rainfall
49.6 in
1991–2020
Days at 90 °F (32 °C) or hotter
115
1991–2020
Days with 0.1 in (2.5 mm) of rain or more
74
1991–2020
Average annual temperature
73 °F
2025 · Volusia County
Annual precipitation
45.9 in
2025 · Volusia County
CO₂ emissions per person
13.6
2024 · United States