Foster City Water Temperature

Foster City is a city close to San Francisco Bay. September is the month with the hottest water temperature at 59.5°F / 15.3°C. The coldest month is April with an ø water temperature of 53.2°F / 11.8°C. March is the month with the lowest precipitation of 0in / 0mm and February with the highest precipitation in a year with 0.4in / 10.2mm. 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. June, July, August, September would be the best time to visit. temperate climate with warm and dry summer would be the climate here.




Summary

Description Value
Current water temperature 55.4 °F / 13 °C
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
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

Foster City Water Temperature

Foster City,United States of America: The current water temperature 55.4 °F

The temperature is too cold to swim

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

Foster City,United States of America: The current water temperature 13 °C

The temperature is too cold to swim

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
The warmest water temperature are in September with around 59.5°F / 15.3°C. The coldest in April with an average water temperature of 53.2°F / 11.8°C.

Foster City weather forecast for the next 14 days

Date Weather High Temp. Low Temp. Rain? Windspeed Precipitation Humidity
Nov 25.
Partly Cloudy
55 °F
13 °C
48 °F
9 °C
0 %
10.6 mph
17 km/h
0 inch
0 mm
73%
Nov 26.
Partly Cloudy
55 °F
13 °C
46 °F
8 °C
0 %
8.1 mph
13 km/h
0 inch
0 mm
69%
Nov 27.
Sunny
61 °F
16 °C
48 °F
9 °C
0 %
3.7 mph
6 km/h
0 inch
0 mm
51%
Nov 28.
Partly Cloudy
63 °F
17 °C
48 °F
9 °C
0 %
3.1 mph
5 km/h
0 inch
0 mm
48%
Nov 29.
Partly Cloudy
63 °F
17 °C
46 °F
8 °C
0 %
4.3 mph
7 km/h
0 inch
0 mm
45%
Nov 30.
Partly Cloudy
63 °F
17 °C
48 °F
9 °C
0 %
5 mph
8 km/h
0 inch
0 mm
48%
Dec 01.
Partly Cloudy
63 °F
17 °C
48 °F
9 °C
0 %
4.3 mph
7 km/h
0 inch
0 mm
46%
Date Weather High Temp. Low Temp. Rain? Windspeed Precipitation Humidity
Dec 02.
Partly Cloudy
61 °F
16 °C
48 °F
9 °C
0 %
5 mph
8 km/h
0 inch
0 mm
64%
Dec 03.
Partly Cloudy
63 °F
17 °C
50 °F
10 °C
0 %
9.3 mph
15 km/h
0 inch
0 mm
76%
Dec 04.
Partly Cloudy
66 °F
19 °C
50 °F
10 °C
0 %
3.1 mph
5 km/h
0 inch
0 mm
61%
Dec 05.
Partly Cloudy
70 °F
21 °C
54 °F
12 °C
0 %
3.7 mph
6 km/h
0 inch
0 mm
47%
Dec 06.
Partly Cloudy
63 °F
17 °C
52 °F
11 °C
0 %
3.7 mph
6 km/h
0 inch
0 mm
44%
Dec 07.
Patchy rain nearby
57 °F
14 °C
48 °F
9 °C
82 %
6.2 mph
10 km/h
0 inch
0.3 mm
77%
Dec 08.
Patchy rain nearby
63 °F
17 °C
48 °F
9 °C
73 %
11.2 mph
18 km/h
0.1 inch
3.3 mm
65%

Foster City weather by month

Max.

Temperature

(°F)

ø.

Temperature

(°F)

Min.

Temperature

(°F)

Precip.

(inch)

Rainy Days

(day)

Rel. Humidity

(%)

January

59 49.6 42.3 0.2 0 81.3%

February

59.7 50.7 43.3 0.4 0 79.7%

March

64.4 52.9 45 0 0 78.3%

April

66.4 54.3 46.6 0 0 74.4%

May

68.7 57.4 49.6 0 0 72.3%

June

75 61.2 52 0 0 69.8%

July

75.6 63.1 55 0 0 72.2%

August

77.4 63.5 56.5 0 0 73.2%

September

78.3 64 55.9 0 0 70.4%

October

74.8 61.2 52.7 0 0 70.1%

November

68 55.2 46.2 0 0 76.9%

December

59.2 50.4 43 0 0 80.3%
Max.

Temperature

(°C)

ø.

Temperature

(°C)

Min.

Temperature

(°C)

Precip.

(mm)

Rainy Days

(days)

Rel. Humidity

(%)

January

15 9.8 5.7 4.8 0 81.3%

February

15.4 10.4 6.3 10.2 0 79.7%

March

18 11.6 7.2 0 0 78.3%

April

19.1 12.4 8.1 0 0 74.4%

May

20.4 14.1 9.8 0 0 72.3%

June

23.9 16.2 11.1 0 0 69.8%

July

24.2 17.3 12.8 0 0 72.2%

August

25.2 17.5 13.6 0 0 73.2%

September

25.7 17.8 13.3 0 0 70.4%

October

23.8 16.2 11.5 0 0 70.1%

November

20 12.9 7.9 0 0 76.9%

December

15.1 10.2 6.1 0 0 80.3%
March is the driest at 0in / 0mm and February the wettest month with 0.4in / 10.2mm. With an average temperature of 64°F / 17.8°C, September is the warmest month in a year. January is the coldest with 49.6°F / 9.8°C average temperature.

Activities & POI in Foster City

Type of Activity List
Golf Course Mariners Point Golf Center
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