Monterey — Water Temperature in October

Water Temperature Range

16°C

minimum

19°C

average

22°C

maximum

Water Temperature Chart for October

The chart shows the average daily water temperature for each day of the month based on historical data.

Table of Water Temperatures by Day of the Month for Previous Years

	2025	2024	2023	2022
OCT 1	18°C	19°C	18°C	17°C
OCT 2	19°C	20°C	18°C	17°C
OCT 3	18°C	20°C	18°C	17°C
OCT 4	19°C	20°C	18°C	17°C
OCT 5	19°C	19°C	19°C	17°C
OCT 6	19°C	20°C	19°C	18°C
OCT 7	19°C	19°C	20°C	17°C
OCT 8	20°C	20°C	20°C	18°C
OCT 9	19°C	19°C	19°C	18°C
OCT 10	20°C	20°C	19°C	18°C
OCT 11	20°C	19°C	20°C	18°C
OCT 12	19°C	19°C	19°C	18°C
OCT 13	20°C	20°C	19°C	19°C
OCT 14	20°C	19°C	20°C	19°C
OCT 15	19°C	19°C	19°C	19°C
OCT 16	19°C	19°C	19°C	18°C
OCT 17	19°C	20°C	18°C	18°C
OCT 18	20°C	20°C	20°C	19°C
OCT 19	19°C	19°C	19°C	18°C
OCT 20	20°C	19°C	20°C	19°C
OCT 21	20°C	19°C	20°C	18°C
OCT 22	20°C	20°C	20°C	19°C
OCT 23	20°C	20°C	20°C	19°C
OCT 24	20°C	20°C	21°C	19°C
OCT 25	20°C	20°C	20°C	19°C
OCT 26	19°C	19°C	19°C	18°C
OCT 27	20°C	19°C	20°C	18°C
OCT 28	20°C	20°C	20°C	19°C
OCT 29	20°C	20°C	20°C	19°C
OCT 30	20°C	20°C	20°C	19°C
OCT 31	20°C	19°C	20°C	20°C

Climate and Swimming Opportunities in Monterey in October

Average Day Air Temperature

23°C

Average Night Air Temperature

13°C

Precipitation Amount per Month

73 mm

Number of Rainy Days

Daylight per Day

13 hrs

Sunshine per Day

7 hrs

Average Wind Speed

14 km/h

Average Humidity

57%

At such water and air temperatures, swimming feels cool and invigorating. It’s comfortable for a quick dip, and you’ll feel fine as long as you warm up soon after.