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St. Petersburg September Weather

Averages and records for weather in St. Petersburg, Florida in the month of September.

Typical St. Petersburg September Weather 1991–2020
Average daily high	88.3 °F
Average daily low	76.9 °F
Average monthly precipitation	6.8 inches
Average monthly snow	none
Daily chance of precipitation	45.0%
Daily chance of snow	0%

St. Petersburg September Weather Records 1892–2024
Highest temperature	100 °F	September 6, 1985
Lowest temperature	61 °F	September 19, 1981
Highest daily low	85 °F	September 5, 2019
Lowest daily high	74 °F	September 29, 2022
Hottest average high temperature	91.9 °F	1925
Coldest average high temperature	85.1 °F	2001
Most daily precipitation	9.6 inches	September 5, 1933
Most monthly precipitation	25.5 inches	1988
Most daily snow	none	-
Most monthly snow	none	-

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
September 1	89.3	77.7	96	68
September 2	89.3	77.7	95	68
September 3	89.2	77.7	95	69
September 4	89.2	77.6	96	68
September 5	89.1	77.5	95	70
September 6	89.0	77.5	100	70
September 7	89.0	77.4	95	70
September 8	88.9	77.4	96	70
September 9	88.9	77.3	96	69
September 10	88.8	77.3	94	69
September 11	88.7	77.2	96	68
September 12	88.6	77.2	93	67
September 13	88.5	77.1	93	68
September 14	88.5	77.1	93	68
September 15	88.4	77.0	93	68
September 16	88.3	76.9	94	68
September 17	88.2	76.8	95	67
September 18	88.0	76.7	94	65
September 19	87.9	76.6	95	61
September 20	87.8	76.5	95	64
September 21	87.7	76.4	94	67
September 22	87.6	76.3	94	66
September 23	87.5	76.2	94	66
September 24	87.4	76.2	93	66
September 25	87.3	76.0	93	66
September 26	87.1	75.9	97	68
September 27	87.0	75.8	93	62
September 28	86.9	75.7	95	64
September 29	86.8	75.5	92	64
September 30	86.7	75.4	94	64

Weather Station Details

Years	Station	Coordinates
1999–2024	St Petersburg AP	location
1892–1998	St. Petersburg	location