Castro Valley Sea Temperature in September

Looking to find out what the average sea water temperature in Castro Valley is for September? Find out what the lowest, highest, and average water temperatures are for Castro Valley over the past 10 years.

Average water temperature in Castro Valley for September

The average, high, and low temperatures below should help you if you can swim in the water in Castro Valley in September.

Average

15.64° C

60.16° F

High

17.93° C

64.27° F

Low

13.34° C

56.01° F

Water temperature range by day in September in Castro Valley

The chart below shows the range of low and high temperatures by day for the month of September in Castro Valley.

Average daily water temperatures in Castro Valley for September

Day	Average	Low	High
1	15.76° C	14.82° C	16.71° C
2	15.77° C	14.57° C	17.29° C
3	15.76° C	14.17° C	17.78° C
4	15.72° C	14.11° C	17.65° C
5	15.64° C	14.41° C	17.42° C
6	15.75° C	14.64° C	17.76° C
7	15.83° C	14.64° C	17.93° C
8	15.81° C	14.52° C	17.79° C
9	15.92° C	14.86° C	17.57° C
10	15.74° C	14.54° C	17.42° C
11	15.75° C	14.43° C	17.18° C
12	15.63° C	14.18° C	17.15° C
13	15.47° C	14.13° C	17.17° C
14	15.55° C	14.13° C	16.92° C
15	15.55° C	14.05° C	16.48° C
16	15.66° C	14.22° C	16.6° C
17	15.66° C	14.27° C	16.8° C
18	15.6° C	13.84° C	16.89° C
19	15.52° C	13.34° C	16.77° C
20	15.59° C	13.81° C	16.51° C
21	15.54° C	14.08° C	16.36° C
22	15.4° C	13.84° C	16.13° C
23	15.4° C	13.43° C	16.24° C
24	15.56° C	13.52° C	16.38° C
25	15.81° C	14.16° C	16.64° C
26	15.88° C	14.37° C	16.6° C
27	15.81° C	14.33° C	16.7° C
28	15.7° C	14.32° C	16.9° C
29	15.3° C	13.48° C	16.29° C
30	15.17° C	13.7° C	16.5° C

Water temperature in September for locations near Castro Valley

Fremont

United States, North America

Alameda

United States, North America

San Francisco Bay

United States, North America

Oakland

United States, North America

Berkeley

United States, North America

Aquatic Park

United States, North America

Redwood City

United States, North America

Burlingame

United States, North America

Mikuni

Japan, Asia

San Francisco

United States, North America

Keren

China, Asia

Richmond

United States, North America

Pacifica

United States, North America

Baker Beach

United States, North America

China Beach

United States, North America

Linda Mar

United States, North America

Tiburon

United States, North America

Ocean Beach San Francisco

United States, North America

Pacifica State Beach

United States, North America

Santa Clara

United States, North America

Belvedere

United States, North America

Pinole

United States, North America

Montalvin

United States, North America

Hercules

United States, North America

Sausalito

United States, North America

Data source and citation

Raw data for the calculations made to find the sea surface temperature in Castro Valley comes from the National Oceanic and Atmospheric Administration (NOAA) and their 1/4° daily Optimum Interpolation Sea Surface Temperature.

The water temperature data is constructed by combining observations from different platforms (satellites, ships, buoys, and Argo floats) on a regular global grid. A spatially complete sea surface temperature map is then built by interpolating to fill in gaps in the data.

If you'd like to use any of the information above in the format it is presented, please use the citation tool below.