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Sitka August Weather

Averages and records for weather in Sitka, Alaska in the month of August.

Typical Sitka August Weather 1991–2020
Average daily high	62.0 °F
Average daily low	52.9 °F
Average monthly precipitation	7.3 inches
Daily chance of precipitation	62.7%

Sitka August Weather Records 1899–2024
Highest temperature	86 °F	August 2, 1929
Lowest temperature	36 °F	August 31, 1928
Highest daily low	61 °F	August 18, 2004
Lowest daily high	50 °F	August 17, 1945
Hottest average high temperature	69.2 °F	1923
Coldest average high temperature	56.6 °F	1918
Most daily precipitation	4.4 inches	August 12, 2023
Most monthly precipitation	19.5 inches	1961

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

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
August 1	62.2	53.3	72	40
August 2	62.2	53.3	86	40
August 3	62.3	53.4	81	44
August 4	62.3	53.4	74	43
August 5	62.3	53.4	77	42
August 6	62.3	53.3	79	41
August 7	62.3	53.3	77	45
August 8	62.3	53.3	78	41
August 9	62.3	53.3	80	44
August 10	62.3	53.2	83	42
August 11	62.3	53.2	78	41
August 12	62.2	53.1	83	40
August 13	62.2	53.1	80	40
August 14	62.2	53.1	80	38
August 15	62.1	53.0	82	39
August 16	62.0	52.9	80	42
August 17	61.9	52.8	80	42
August 18	61.8	52.7	84	41
August 19	61.6	52.6	79	43
August 20	61.6	52.5	81	39
August 21	61.5	52.3	77	42
August 22	61.4	52.2	81	39
August 23	61.3	52.1	78	40
August 24	61.1	52.0	77	40
August 25	61.0	51.9	75	37
August 26	60.8	51.7	75	38
August 27	60.7	51.6	74	40
August 28	60.6	51.5	76	38
August 29	60.4	51.3	76	40
August 30	60.3	51.2	75	40
August 31	60.2	51.0	70	36

Weather Station Details

Years	Station	Coordinates
1945–2024	Sitka Airport	location
1899–1944	Sitka Magnetic Observatory	location