Marine Weather Net

San Mateo Point to the Mexican Border from 30 to 60 nm out including San Clemente Island Marine Forecast


TONIGHT

NW
WINDS
10
KNOTS

THU

NW
WINDS
10 - 15
KNOTS

THU NIGHT

W
WINDS
10 - 15
KNOTS

FRI

VARIABLE
WINDS < 10
KNOTS

The Marine Weather Forecast In Detail:
PZZ775 Forecast Issued: 1252 PM PDT Wed Mar 19 2025

Tonight...Wind Nw 10 Kt. Seas 3 To 5 Ft. Wave Detail: Nw 2 Ft At 4 Seconds, W 4 Ft At 12 Seconds And S 1 Foot At 14 Seconds.
Thu...Wind Nw 10 To 15 Kt With Gusts To 20 Kt. Seas 4 To 6 Ft. Wave Detail: Nw 3 Ft At 4 Seconds, Nw 4 Ft At 7 Seconds And S 1 Foot At 16 Seconds.
Thu Night...Wind W 10 To 15 Kt. Seas 3 To 5 Ft. Wave Detail: Nw 2 Ft At 4 Seconds, Nw 4 Ft At 7 Seconds And S 1 Foot At 17 Seconds.
Fri...Wind Variable Less Than 10 Kt...Becoming Nw 10 Kt In The Afternoon. Seas 4 To 6 Ft. Wave Detail: Nw 1 Foot At 4 Seconds, W 4 Ft At 12 Seconds And S 1 Foot At 15 Seconds.
Fri Night...Wind W 10 Kt. Seas 4 To 6 Ft. Wave Detail: W 1 Foot At 4 Seconds, W 4 Ft At 12 Seconds And S 1 Foot At 16 Seconds.
Sat...Wind Variable Less Than 10 Kt. Seas 4 To 6 Ft. Wave Detail: W 4 Ft At 13 Seconds And S 2 Ft At 15 Seconds.
Sat Night...Wind Variable Less Than 10 Kt. Seas 3 To 5 Ft. Wave Detail: Nw 1 Foot At 4 Seconds, W 4 Ft At 12 Seconds And S 2 Ft At 15 Seconds.
Sun...Wind Variable Less Than 10 Kt. Seas 3 To 5 Ft. Wave Detail: W 4 Ft At 12 Seconds And S 2 Ft At 14 Seconds.
Sun Night...Wind Variable Less Than 10 Kt. Seas 3 To 4 Ft. Wave Detail: Nw 1 Foot At 4 Seconds, W 3 Ft At 12 Seconds And S 2 Ft At 14 Seconds.
Mon...Wind Variable Less Than 10 Kt. Seas 3 To 4 Ft. Wave Detail: W 1 Foot At 4 Seconds, S 2 Ft At 14 Seconds And W 3 Ft At 15 Seconds.
Mon Night...Wind Variable Less Than 10 Kt. Seas 3 To 4 Ft. Wave Detail: W 1 Foot At 4 Seconds, W 2 Ft At 14 Seconds And S 2 Ft At 14 Seconds.
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Area Forecast Discussion
National Weather Service San Diego CA
309am PDT Thu May 15 2025

Synopsis
Dry and warmer through Friday. Cooler, cloudier, and windier with chances of precipitation along and west of the mountains over the weekend. Warmer with a shallower marine layer expected next week.

For Extreme Southwestern California Including Orange... San Diego...Western Riverside and Southwestern San Bernardino Counties
.SHORT TERM (Today through Saturday night)... The warming trend will continue today with high temperatures for inland areas another 5 to 10 degrees warmer than Wednesday with not much change for Friday. High temperatures today will be a few degrees below average with high temperatures ranging from the mid 60s near the coast to the mid 70s to lower 80s for the Inland Empire with the lower deserts in the upper 80s to mid 90s. The marine layer will remain near 2000 to 2500 feet deep into Friday with night and morning low clouds extending inland into portions of the inland valleys.

A low pressure system from the northwest will bring cooler weather for the weekend with stronger and gusty west winds for the mountains and deserts. High temperatures for inland areas will be 5 to 10 degrees cooler on Saturday with another 5 degrees of cooling for the mountains and deserts on Sunday. There will be periods of stronger and gusty west winds for the mountains and deserts for Saturday afternoon into Sunday. The strongest winds are expected on Saturday afternoon and evening with gusts to 40 to 50 mph and isolated gusts to 65 to 75 mph in the northern Coachella Valley below the San Gorgonio Pass.

The marine layer will deepen to 5000 to 5500 feet during the weekend with coastal low clouds extending well inland and onto the coastal slopes of the mountains. There could be some light precipitation for coastal areas for late Friday night into Saturday morning as the marine layer deepens. The most likely time for precipitation is on Saturday night with the most likely location for San Diego County from the coast to the mountains. Most amounts are expected to be light with chances for one-tenth inch or more of rainfall ranging from around 5 percent near the coast to 10 to 15 percent on the coastal slopes of the mountains.

Long Term - Sunday through Wednesday
The mountains and deserts will cool another 5 degrees on Sunday with high temperatures on Sunday as much as 15 to 20 degrees below average for the mountains. High temperatures on Sunday will range from the lower to mid 60s near the coast to the 60s and lower 70s for the in the Inland Empire with the lower deserts in the upper 70s to mid 80s. A slight chance of mostly light showers will continue into Sunday morning, mostly for San Diego County from the coast to the mountains. Gusty west winds for the mountains and deserts will continue into early Sunday evening, but the winds will not be quite as strong as those for Saturday afternoon and evening.

Dry weather will follow for next week. Warming will begin on Monday and continue on Tuesday and Wednesday with high temperatures as much as 5 to 10 degrees above average on Wednesday for the coast and valleys. On Wednesday, high temperatures will range from the lower to mid 70s near the coast to around 90 for the Inland Empire with 100 to 104 for the lower deserts.

A deep marine layer on Monday will become shallower with night and morning coastal low clouds not extending inland much past the western valleys by Wednesday.

Marine
No hazardous marine conditions are expected today through Saturday. Stronger winds and higher seas are expected late Saturday into Sunday, probably leading to hazardous boating conditions in the outer coastal waters. Winds and waves gradually subside later Sunday into Monday.

Skywarn
Skywarn activation is not requested. However weather spotters are encouraged to report significant weather conditions.

NOAA San Diego CA Office: Watches - Warnings - Advisories
CA...None. PZ...None.