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In April warmest sea in California is usually observed in the following locations: Fremont, San Jose, Oakland.
Table below shows the average sea water temperature for marine resorts of California in April for the last three years.
| Place name | April 2025 | April 2024 | April 2023 |
|---|---|---|---|
| Fremont | 58.5°F | 60.4°F | 56.3°F |
| San Jose | 58.3°F | 60.3°F | 56.1°F |
| Oakland | 58.3°F | 58.2°F | 55.7°F |
| Sausalito | 56.5°F | 57.0°F | 54.8°F |
| San Francisco | 56.4°F | 56.8°F | 54.5°F |
| Monterey | 55.3°F | 55.5°F | 53.4°F |
| Santa Cruz | 54.6°F | 54.9°F | 53.1°F |
| Stateline | 46.4°F | 43.9°F | 44.9°F |
| South Lake Tahoe | 46.4°F | 43.8°F | 44.8°F |
| Lake Tahoe | 46.4°F | 43.7°F | 45.8°F |
| Incline Village | 45.5°F | 44.1°F | 46.1°F |
| Yosemite | 44.4°F | 45.7°F | 45.6°F |
Charts below show average sea water temperature for California resorts with the warmest sea in April.
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
11
22
33
44
55
66
77
88
54.1
58.2
64.6
67
68.2
69
65.9
62.2
58.6
55.8
53.5
52.8
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
10
20
30
40
50
60
70
80
54.6
57.8
61.3
62.9
62.6
62.4
60.1
57.7
56.7
55.2
53.4
52.8
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
11
22
33
44
55
66
77
88
53.7
58.3
64.1
66.1
66
64.7
63.6
60.2
57.9
55
53.2
52.5
You can also check other months of the year to see sea temperature of California resorts at that time.
Popular places:
Name
°F
