South San Francisco Water Temperature

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South San Francisco is a town close to San Francisco Bay. September is the month with the highest water temperature at 57.9°F / 14.4°C.
The coldest month is April with an average water temperature of 52°F / 11.1°C.
January is the driest at 0in / 0mm and February the wettest month with 0.2in / 5.1mm.
With an average air temperature of 64.2°F / 17.9°C, September is the warmest month in a year. January is the coldest with 48.6°F / 9.2°C average air temperature.
The Climate is described as temperate climate with warm and dry summer. Best time to Visit would be in June, July, August, September.

South 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 64.2°F / 17.9°C
Coldest Month Air Temperature: January with 48.6°F / 9.2°C
Wettest Month: February with 0.2in / 5.1mm
Driest Month: January with 0in / 0mm
Highest Humidity January with 78.9%
Lowest Humidity June with 61.4%
Best Time to Visit: June, July, August, September
Climate Classification temperate climate with warm and dry summer

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South San Francisco water temperature by month

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

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 hottest water temperature typically reached 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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South San Francisco weather today & 14-day weather forecast

Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
Jan. 15
Few clouds
63 °F
43°F
17 °C
6°C
1mph (1km/h)
east-southeast
0in (0mm)
0 %
66%
Jan. 16
Few clouds
64 °F
44°F
18 °C
6°C
1mph (1km/h)
southeast
0in (0mm)
0 %
67%
Jan. 17
Scattered clouds
57 °F
45°F
14 °C
7°C
1mph (2km/h)
west-southwest
0in (0mm)
0 %
81%
Jan. 18
Scattered clouds
57 °F
45°F
14 °C
7°C
1mph (1km/h)
south-southwest
0in (0mm)
0 %
80%
Jan. 19
Scattered clouds
56 °F
45°F
14 °C
7°C
1mph (2km/h)
south
0in (0mm)
0 %
79%
Jan. 20
Few clouds
59 °F
44°F
15 °C
7°C
1mph (2km/h)
southeast
0in (0mm)
0 %
60%
Jan. 21
Overcast clouds
60 °F
44°F
16 °C
7°C
1mph (2km/h)
south-southeast
0in (0mm)
0 %
57%
Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
Jan. 22
Few clouds
60 °F
43°F
16 °C
6°C
1mph (2km/h)
south
0in (0mm)
0 %
59%
Jan. 23
Broken clouds
60 °F
44°F
15 °C
7°C
1mph (2km/h)
south
0in (0mm)
0 %
61%
Jan. 24
Scattered clouds
57 °F
44°F
14 °C
7°C
1mph (2km/h)
southwest
0in (0mm)
0 %
63%
Jan. 25
Scattered clouds
55 °F
45°F
13 °C
7°C
1mph (2km/h)
west
0in (0mm)
0 %
68%
Jan. 26
Few clouds
59 °F
48°F
15 °C
9°C
2mph (3km/h)
south
0in (0mm)
0 %
51%
Jan. 27
Few clouds
59 °F
49°F
15 °C
9°C
2mph (4km/h)
south
0in (0mm)
0 %
51%
Jan. 28
Few clouds
58 °F
50°F
15 °C
10°C
1mph (2km/h)
northwest
0in (0mm)
0 %
67%
Jan. 29
Few clouds
59 °F
49°F
15 °C
9°C
2mph (3km/h)
south
0in (0mm)
0 %
54%
Jan. 30
Broken clouds
58 °F
49°F
15 °C
10°C
2mph (3km/h)
south-southeast
0in (0mm)
0 %
59%

South San Francisco weather by month / climate table

Max.

Temperature

°F

ø.

Temperature

°F

Min.

Temperature

(°F)

Precip.

(in)

Rainy Days

(d)

Rel. Humidity

(%)

January

59 48.6 39.6 0 0 78.9%

February

60.8 50.2 41.4 0.2 0 77.7%

March

66.4 52.7 43.3 0 0 75.3%

April

69.3 55 45.7 0 0 68.4%

May

73.2 59 48.7 0 0 64%

June

79.9 63 51.6 0 0 61.4%

July

78.3 63.5 53.4 0 0 67.5%

August

79.9 63.9 54.7 0 0 68.7%

September

81.5 64.2 53.8 0 0 64.6%

October

76.8 61 50.5 0 0 63.6%

November

68.9 54.3 42.8 0 0 72.4%

December

59.7 49.1 40.3 0 0 77.4%

Max.

Temperature

°C

ø.

Temperature

°C

Min.

Temperature

(°C)

Precip.

(mm)

Rainy Days

(d)

Rel. Humidity

(%)

January

15 9.2 4.2 0 0 78.9%

February

16 10.1 5.2 5.1 0 77.7%

March

19.1 11.5 6.3 0 0 75.3%

April

20.7 12.8 7.6 0 0 68.4%

May

22.9 15 9.3 0 0 64%

June

26.6 17.2 10.9 0 0 61.4%

July

25.7 17.5 11.9 0 0 67.5%

August

26.6 17.7 12.6 0.1 0 68.7%

September

27.5 17.9 12.1 0 0 64.6%

October

24.9 16.1 10.3 0 0 63.6%

November

20.5 12.4 6 0 0 72.4%

December

15.4 9.5 4.6 0 0 77.4%
January is the driest at 0in / 0mm and February the wettest month with 0.2in / 5.1mm. With an average temperature of 64.2°F / 17.9°C, September is the warmest month in a year. January is the coldest with 48.6°F / 9.2°C average temperature.

Activities & POI in South San Francisco

Type of Activity List
Attraction SOUTH SAN FRANCISCO THE INDUSTRIAL CITY
Golf Course California Golf Club of San Francisco
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