San Francisco Water Temperature

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San Francisco is a city close to San Francisco Bay. temperate climate with warm and dry summer would be the climate here. September is the month with the highest water temperature at 57.9°F / 14.4°C. The month with the lowest is April with an average water temperature of 52°F / 11.1°C. The avg. air temperature is around 62.6°F / 17°C, September is the month with the highest temperature. January is the coolest with 49.3°F / 9.6°C average air temperature. January is the month with the min. precipitation of 0in / 0mm and February with the max. precipitation in a year with 0.2in / 5.1mm. If you plan to visit this place, the month June, July, August, September would be the best time.

San Francisco Summary

Description	Value
Current water temperature	/
Warmest Month Water Temperature:	September with 57.9°F / 14.4°C
Coldest Month Water Temperature:	April with 52°F / 11.1°C
Warmest Month Air Temperature:	September with 62.6°F / 17°C
Coldest Month Air Temperature:	January with 49.3°F / 9.6°C
Wettest Month:	February with 0.2in / 5.1mm
Driest Month:	January with 0in / 0mm
Highest Humidity	January with 80.3%
Lowest Humidity	June with 68.7%
Best Time to Visit:	June, July, August, September
Climate Classification	temperate climate with warm and dry summer

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San Francisco water temperature by month

°F

San Francisco Bay water temperature by month

	Max. Water Temperature (°F)	ø. Water Temperature (°F)	Min. Water Temperature (°F)
January	52.5	52.3	52.2
February	52.9	52.7	52.3
March	53.2	52.9	52.3
April	52.5	52.2	51.8
May	53.2	52.3	52
June	55.2	53.4	52.5
July	56.8	55.8	54.5
August	57.9	57.4	56.5
September	58.3	57.7	57.2
October	57.4	56.7	55.9
November	56.1	55.2	54.1
December	54.1	53.4	52.5

°C

San Francisco Bay water temperature by month

	Max. Water Temperature (°C)	ø. Water Temperature (°C)	Min. Water Temperature (°C)
January	11.4	11.3	11.2
February	11.6	11.5	11.3
March	11.8	11.6	11.3
April	11.4	11.2	11
May	11.8	11.3	11.1
June	12.9	11.9	11.4
July	13.8	13.2	12.5
August	14.4	14.1	13.6
September	14.6	14.3	14
October	14.1	13.7	13.3
November	13.4	12.9	12.3
December	12.3	11.9	11.4

The warmest water temperature are in September with around 57.9°F / 14.4°C. The coldest in April with an average water temperature of 52°F / 11.1°C.

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San Francisco weather today & 14-day weather forecast

7-day weather forecast
+9-day forecast

7-day weather forecast

Date	Weather	Max. F Min. F	Max. C Min. C	Windspeed Windir.	Precip. Rainrisk	Rel. Humidity
Dec. 03	Few clouds	66 °F 49°F	19 °C 9°C	1mph (1km/h) south-southeast	0in (0mm) 0 %	71%
Dec. 04	Few clouds	66 °F 48°F	19 °C 9°C	1mph (1km/h) southwest	0in (0mm) 0 %	75%
Dec. 05	Scattered clouds	63 °F 48°F	17 °C 9°C	1mph (1km/h) southwest	0in (0mm) 0 %	81%
Dec. 06	Few clouds	63 °F 48°F	17 °C 9°C	1mph (2km/h) east	0in (0mm) 0 %	79%
Dec. 07	Broken clouds	61 °F 48°F	16 °C 9°C	1mph (2km/h) south-southeast	0in (0mm) 0 %	80%
Dec. 08	Scattered clouds	58 °F 50°F	14 °C 10°C	2mph (3km/h) north-northwest	0in (0mm) 0 %	81%
Dec. 09	Clear Sky	56 °F 50°F	13 °C 10°C	2mph (3km/h) east	0in (0mm) 0 %	49%

+9-day forecast

Date	Weather	Max. F Min. F	Max. C Min. C	Windspeed Windir.	Precip. Rainrisk	Rel. Humidity
Dec. 10	Scattered clouds	56 °F 51°F	13 °C 11°C	3mph (4km/h) east-northeast	0in (0mm) 0 %	40%
Dec. 11	Few clouds	54 °F 49°F	12 °C 9°C	2mph (4km/h) east-southeast	0in (0mm) 0 %	46%
Dec. 12	Scattered clouds	59 °F 51°F	15 °C 11°C	2mph (4km/h) northeast	0in (0mm) 0 %	46%
Dec. 13	Broken clouds	62 °F 51°F	17 °C 10°C	2mph (4km/h) north-northeast	0in (0mm) 0 %	46%
Dec. 14	Overcast clouds	59 °F 52°F	15 °C 11°C	1mph (2km/h) south	0in (0mm) 0 %	56%
Dec. 15	Few clouds	57 °F 50°F	14 °C 10°C	1mph (2km/h) south	0in (0mm) 0 %	83%
Dec. 16	Few clouds	60 °F 50°F	15 °C 10°C	1mph (2km/h) north-northeast	0in (0mm) 0 %	62%
Dec. 17	Broken clouds	58 °F 51°F	14 °C 10°C	1mph (2km/h) west-northwest	0in (0mm) 0 %	70%
Dec. 18	Broken clouds	58 °F 50°F	15 °C 10°C	2mph (3km/h) southeast	0in (0mm) 0 %	72%

San Francisco weather by month / climate table

°F

	Max. Temperature °F	ø. Temperature °F	Min. Temperature (°F)	Precip. (in)	Rainy Days (d)	Rel. Humidity (%)
January	58.6	49.3	41.2	0	0	80.3%
February	59.7	50.7	42.8	0.2	1	79.3%
March	63.9	52.7	44.8	0	0	78%
April	65.8	54.3	46.8	0	0	73.1%
May	68.9	57.4	49.3	0	0	70.5%
June	73.4	60.6	51.6	0	0	68.7%
July	72.7	61.3	53.6	0	0	74%
August	74.5	62.1	55.2	0	0	74.8%
September	76.6	62.6	54.5	0	0	71.2%
October	73.6	60.3	51.6	0	0	69.3%
November	67.3	54.5	44.2	0	0	75.7%
December	59.4	49.8	42.1	0	0	78.9%

°C

	Max. Temperature °C	ø. Temperature °C	Min. Temperature (°C)	Precip. (mm)	Rainy Days (d)	Rel. Humidity (%)
January	14.8	9.6	5.1	0	0	80.3%
February	15.4	10.4	6	5.1	1	79.3%
March	17.7	11.5	7.1	0	0	78%
April	18.8	12.4	8.2	0	0	73.1%
May	20.5	14.1	9.6	0	0	70.5%
June	23	15.9	10.9	0	0	68.7%
July	22.6	16.3	12	0.2	0	74%
August	23.6	16.7	12.9	0.2	0	74.8%
September	24.8	17	12.5	0	0	71.2%
October	23.1	15.7	10.9	0	0	69.3%
November	19.6	12.5	6.8	0	0	75.7%
December	15.2	9.9	5.6	0	0	78.9%

January is the most draught at 0in / 0mm and February the month with the most rain around 0.2in / 5.1mm. The avg. temperature is around 62.6°F / 17°C, September is the hottest month in a year. January is the coolest with 49.3°F / 9.6°C avg. temperature.

Activities & POI in San Francisco

Type of Activity	List
Beach	East Beach
Marina for Sailing, Boat adventures, fishing	South Beach Harbor, Treasure Island Sailing Center, Stow Lake Boathouse & Bike Rental, Yacht Harbor, East Harbor, Port of Trade Winds Harbor
Attraction	Dragon's Gate, Alamo Square Historic District, Painted Ladies, Twin Peaks, Treasure Island Naval Station, Golden Gate Fortune Cookie Factory, Sea Lions, Madame Tussauds San Francisco, Magowan's Infinite Mirror Maze, National AIDS Memorial Grove, Bank of Canton (former Chinese Telephone Exchange), Musical Steps, California and Powell streets, Rainbow Crosswalk, Tobin House, Frank lloyd Wright building, Graffiti, Bay Cruise Line, Whale Tours, Jimmy Hendrix house, Grateful Dead house, Janis Joplin house, Lombard Street, Little Italy, Pier 39 Fishermans Wharf, Fisherman's Wharf of San Francisco, Car Pool Pickup To Vallejo;Car Pool Pickup to Vallejo, Pier 39 Fisherman's Wharf, Crab Statue, Lennon Rehearsal & Music Services, Lennon Music & Rehearsal Services, China Town, Pride Barbie Doll Display in private windows, Bradford Street, Salesforce Park Cable Car, Peephole Cinema, Seward Street Slides, Jazz mural, Alamo Square Park, Matter of Trust Eco-Home, Cable Car Turntable (Hyde & Beach), Cable Car Turntable (Taylor & Bay), Cable Car Turntable (Powell & Market), Transamerica Pyramid, Ghirardelli Square, Conservatory of Flowers, Spreckels Temple of Music, Japanese Tea Garden, City Lights Booksellers, Pioneer Log Cabin, Rose Garden, Chinese Pavillion, San Francisco Botanical Garden, San Francisco Carousel, United Nations Plaza, McLaren Lodge, Alma, Eureka, Hercules, Eppleton Hall, Balclutha, C. A. Thayer, Statue of Christopher Columbus, Mohatama Gandhi Statue, Pier 39, Alhambra Theatre, Palace of Fine Arts, San Francisco Ferry Building, Alamo Square
Golf Course	Presidio Golf Course

San Francisco Bay