Measurements:
°C
°F
Monterey
66°F
SE 3 mph
Feels like: 66°F
Precip: 3%
World Resorts USA Monterey Weather

Monterey Sea Water Temperature

Current Sea Water Temperature:
+59.8°F
Maximum Sea Water Temperature in September: 67.0°F
Minimum Sea Water Temperature in September: 56.4°F
Average water temperature in September: 60.7°F

Sea Water Temperature for the Last 10 Days:

September 15 59.8°F September 10 61.8°F
September 14 59.8°F September 09 61.2°F
September 13 61.2°F September 08 60.4°F
September 12 62.2°F September 07 60.4°F
September 11 64.0°F September 06 61.2°F

When is the Warmest Sea for Monterey?

According to our data for the last three years for Monterey the highest average sea water temperature was in September, August and October.

Average Water Temperature by Month, °F

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Monterey was 60.4°F. The maximum and minimum values were 57.0°F and 64.0°F respectively.

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Monterey was 59.3°F. The maximum and minimum values were 56.0°F and 62.0°F respectively.

Sea Water Temperature in October

Select Year: 2025 2024 2023

The average sea surface temperature in October 2025 for Monterey was 62.2°F. The maximum and minimum values were 59.0°F and 65.4°F respectively.

Best Time to Visit Monterey
The most sunny months:
November 17 days
June 17 days
July 17 days
The most warm months:
September 68.2 °F
August 68.2 °F
October 66.7 °F
Warmest sea temperature:
September 60.7 °F
August 60.0 °F
October 59.9 °F
The most cold months:
December 58.0 °F
February 58.2 °F
January 58.4 °F
The most rainy months:
March 4 days
February 3 days
January 3 days
The most windy months:
May 8 mph
April 8 mph
February 8 mph

Monterey on the Weather Map

USA Resorts:
NAME
Boston +64
Chicago +66
Hawaii +80
Las Vegas +80
Los Angeles +74
Maui +66
Miami +92
Myrtle Beach +88
New York +72
Panama City Beach +90
San Diego +72
San Francisco +60
Santa Monica +72
Sarasota +94
Washington +76
24 Hours Weather Forecast
Monterey
Local time: 08:09
15 sep, tuesday
0900 66°F
SE
3 mph
1200 76°F
SE
8 mph
1500 76°F
SE
9 mph
1800 66°F
SE
6 mph
2100 54°F
NE
2 mph
16 sep, wednesday
0000 54°F
NE
2 mph
0300 52°F
N
2 mph
0600 52°F
N
3 mph