Foster City Water Temperature

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Foster City 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 59.5°F / 15.3°C. The month with the lowest is April with an average water temperature of 53.2°F / 11.8°C. The avg. air temperature is around 64°F / 17.8°C, September is the month with the highest temperature. January is the coolest with 49.6°F / 9.8°C average air temperature. March is the month with the min. precipitation of 0in / 0mm and February with the max. precipitation in a year with 0.4in / 10.2mm. If you plan to visit this place, the month June, July, August, September would be the best time.

Foster City Summary

Description	Value
Current water temperature	/
Warmest Month Water Temperature:	September with 59.5°F / 15.3°C
Coldest Month Water Temperature:	April with 53.2°F / 11.8°C
Warmest Month Air Temperature:	September with 64°F / 17.8°C
Coldest Month Air Temperature:	January with 49.6°F / 9.8°C
Wettest Month:	February with 0.4in / 10.2mm
Driest Month:	March with 0in / 0mm
Highest Humidity	January with 81.3%
Lowest Humidity	June with 69.8%
Best Time to Visit:	June, July, August, September
Climate Classification	temperate climate with warm and dry summer

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Foster City 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	54.9	54.5	54.3
February	54.5	54	53.6
March	54.1	54	53.6
April	53.8	53.4	52.9
May	54.3	53.8	53.2
June	56.8	55	54.1
July	58.3	57.4	56.3
August	59.7	59	57.9
September	59.7	59.4	59
October	59.2	58.3	57.6
November	57.9	57	55.9
December	56.1	55.6	54.9

°C

San Francisco Bay water temperature by month

	Max. Water Temperature (°C)	ø. Water Temperature (°C)	Min. Water Temperature (°C)
January	12.7	12.5	12.4
February	12.5	12.2	12
March	12.3	12.2	12
April	12.1	11.9	11.6
May	12.4	12.1	11.8
June	13.8	12.8	12.3
July	14.6	14.1	13.5
August	15.4	15	14.4
September	15.4	15.2	15
October	15.1	14.6	14.2
November	14.4	13.9	13.3
December	13.4	13.1	12.7

September is the month with the warmest water temperature at 59.5°F / 15.3°C. The month with the coldest is April with an average water temperature of 53.2°F / 11.8°C.

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Foster City 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
Jan. 20	Few clouds	63 °F 42°F	17 °C 5°C	2mph (3km/h) east	0in (0mm) 0 %	48%
Jan. 21	Few clouds	62 °F 41°F	17 °C 5°C	1mph (2km/h) south-southwest	0in (0mm) 0 %	57%
Jan. 22	Few clouds	63 °F 40°F	17 °C 4°C	1mph (2km/h) southwest	0in (0mm) 0 %	61%
Jan. 23	Few clouds	65 °F 41°F	19 °C 5°C	1mph (2km/h) east	0in (0mm) 0 %	62%
Jan. 24	Scattered clouds	60 °F 45°F	16 °C 7°C	1mph (2km/h) southwest	0in (0mm) 0 %	72%
Jan. 25	Few clouds	59 °F 44°F	15 °C 7°C	2mph (4km/h) north-northwest	0in (0mm) 0 %	60%
Jan. 26	Clear Sky	58 °F 44°F	14 °C 7°C	2mph (3km/h) south-southeast	0in (0mm) 0 %	54%

+9-day forecast

Date	Weather	Max. F Min. F	Max. C Min. C	Windspeed Windir.	Precip. Rainrisk	Rel. Humidity
Jan. 27	Clear Sky	61 °F 41°F	16 °C 5°C	1mph (2km/h) south-southwest	0in (0mm) 0 %	56%
Jan. 28	Clear Sky	59 °F 43°F	15 °C 6°C	1mph (2km/h) south	0in (0mm) 0 %	60%
Jan. 29	Clear Sky	59 °F 44°F	15 °C 7°C	2mph (3km/h) southwest	0in (0mm) 0 %	64%
Jan. 30	Clear Sky	60 °F 45°F	15 °C 7°C	2mph (3km/h) southwest	0in (0mm) 0 %	65%
Jan. 31	Clear Sky	59 °F 45°F	15 °C 7°C	1mph (1km/h) south-southwest	0in (0mm) 0 %	54%
Feb. 01	Clear Sky	60 °F 46°F	16 °C 8°C	1mph (2km/h) south-southwest	0in (0mm) 0 %	57%
Feb. 02	Clear Sky	60 °F 46°F	16 °C 8°C	1mph (2km/h) west-southwest	0in (0mm) 0 %	69%
Feb. 03	Clear Sky	65 °F 50°F	18 °C 10°C	1mph (1km/h) south	0in (0mm) 0 %	64%
Feb. 04	Few clouds	65 °F 51°F	18 °C 11°C	1mph (1km/h) southwest	0in (0mm) 0 %	64%

Foster City weather by month / climate table

°F

	Max. Temperature °F	ø. Temperature °F	Min. Temperature (°F)	Precip. (in)	Rel. Humidity (%)
January	59	49.6	42.3	0.2	81.3%
February	59.7	50.7	43.3	0.4	79.7%
March	64.4	52.9	45	0	78.3%
April	66.4	54.3	46.6	0	74.4%
May	68.7	57.4	49.6	0	72.3%
June	75	61.2	52	0	69.8%
July	75.6	63.1	55	0	72.2%
August	77.4	63.5	56.5	0	73.2%
September	78.3	64	55.9	0	70.4%
October	74.8	61.2	52.7	0	70.1%
November	68	55.2	46.2	0	76.9%
December	59.2	50.4	43	0	80.3%

°C

	Max. Temperature °C	ø. Temperature °C	Min. Temperature (°C)	Precip. (mm)	Rel. Humidity (%)
January	15	9.8	5.7	4.8	81.3%
February	15.4	10.4	6.3	10.2	79.7%
March	18	11.6	7.2	0	78.3%
April	19.1	12.4	8.1	0	74.4%
May	20.4	14.1	9.8	0	72.3%
June	23.9	16.2	11.1	0	69.8%
July	24.2	17.3	12.8	0	72.2%
August	25.2	17.5	13.6	0	73.2%
September	25.7	17.8	13.3	0	70.4%
October	23.8	16.2	11.5	0	70.1%
November	20	12.9	7.9	0	76.9%
December	15.1	10.2	6.1	0	80.3%

March is the month with the lowest rain of 0in / 0mm and February with the highest precipitation in a year with 0.4in / 10.2mm. The avg. temperature is around 64°F / 17.8°C, September is the month with the highest temperature. January is the coolest with 49.6°F / 9.8°C average temperature.

Activities & POI in Foster City

Type of Activity	List
Golf Course	Mariners Point Golf Center

San Francisco Bay