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Bremerton September Weather

Averages and records for weather in Bremerton, Washington in the month of September.

Typical Bremerton September Weather 1991–2020
Average daily high	71.9 °F
Average daily low	51.1 °F
Average monthly precipitation	2.0 inches
Daily chance of precipitation	30.2%

Bremerton September Weather Records 1899–2024
Highest temperature	97 °F	September 3, 1988
Lowest temperature	30 °F	September 21, 2003
Highest daily low	72 °F	September 6, 1917
Lowest daily high	49 °F	September 27, 1972
Hottest average high temperature	76.3 °F	2022
Coldest average high temperature	64.6 °F	1978
Most daily precipitation	2.2 inches	September 29, 2013
Most monthly precipitation	7.3 inches	2013

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	75.2	53.3	91	37
September 2	75.0	53.2	91	36
September 3	74.7	53.1	97	40
September 4	74.4	53.0	95	43
September 5	74.1	52.8	88	44
September 6	73.8	52.7	92	44
September 7	73.6	52.5	89	42
September 8	73.4	52.4	94	40
September 9	73.3	52.3	86	41
September 10	73.0	52.1	89	41
September 11	72.8	52.0	93	40
September 12	72.5	51.8	93	41
September 13	72.2	51.6	84	36
September 14	72.1	51.4	87	40
September 15	72.0	51.2	93	35
September 16	71.9	51.1	92	35
September 17	71.6	50.9	91	38
September 18	71.2	50.7	82	39
September 19	70.8	50.6	88	38
September 20	70.5	50.3	84	39
September 21	70.1	50.1	87	30
September 22	69.8	49.9	89	39
September 23	69.6	49.7	92	39
September 24	69.3	49.5	88	38
September 25	68.9	49.3	90	37
September 26	68.4	49.1	85	34
September 27	68.0	48.8	83	33
September 28	67.6	48.5	87	38
September 29	67.2	48.3	88	37
September 30	66.8	48.1	83	35

Weather Station Details

Years	Station	Coordinates
1899–2024	Bremerton	location