Weather in Channel Islands

The Channel Islands have a Mediterranean climate year-round. Temperatures are relatively stable. However, visitors must be prepared for high winds, fog, rough seas, and sea spray at any time. Winds are often calm in the early morning and increase during the afternoon. High winds may occur regardless of the forecast, especially on the outer islands, Santa Rosa and San Miguel. Anacapa, eastern Santa Cruz, and Santa Barbara Islands have more moderate winds.

Dense fog is common during the late spring and early summer months, but may occur at any time. Nearly all precipitation occurs in the winter, with the summers being extremely dry. Ocean water temperatures range from 50°F in the winter to nearly 70°F in the fall.

Current Weather in the Channel Islands Region

Averages and Records at Channel Islands

Month	Avg High	Avg Low	Record High	Record Low	Avg Precip
January	66	45	88	29	3.43
February	66	47	91	28	3.90
March	65	48	94	31	3.03
April	68	50	100	35	0.71
May	68	53	98	39	0.20
June	70	56	102	42	0.04
July	73	59	94	44	0.04
August	74	60	97	46	0.08
September	74	59	103	42	0.35
October	73	55	103	37	0.35
November	70	49	98	33	1.38
December	68	45	96	29	2.13

All temperatures are reported in Fahrenheit. All precipitation is reported in inches.