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Arroyo Grande Sea Temperature in March

California, United States

February Arroyo Grande year-round → April

Average sea temperature for Arroyo Grande, United States across March, based on 10 years of daily readings.

Average

12.98° C

High

15.59° C

Low

11.26° C

Water at this temperature is cold and will feel very cold initially, but the body will get used to it and longer swims are possible. Experienced swimmers can manage several hours of swimming, however hypothermia is still a real risk.

March is the 10th warmest of 12 months at Arroyo Grande. On average the water sits 1.1° than the year-round mean of 14.06° C.

Compared to February, March is 0.5° cooler than (13.46° C in February). By April the water is usually 12.27° C.

Arroyo Grande Day-by-Day Water Temperature in March

10-year low, average and high

10.5° C
12.0° C
13.5° C
15.0° C
16.5° C
1
5
10
15
20
25
31
Day-by-day low and high band with the 10-year daily average through March. Range Average

Each vertical bar above is one day of March. The shaded band covers the range the water has reached on that day across the last 10 years — the lowest reading at the bottom, the highest at the top. The line running through the bars is the daily average over those 10 years, so you can see the typical shape of the month at Arroyo Grande.

A narrow band means the temperature on that day has stayed close to the average year on year. A taller band means it has swung more, often because of changeable weather around that time of year. Hovering a day pulls up its low, average, and high.

March Water Temperature Table for Arroyo Grande

10-year daily averages

Day Average Low High
March 1 13.06° C 11.79° C 14.74° C
March 2 12.99° C 11.78° C 14.57° C
March 3 12.93° C 11.73° C 14.62° C
March 4 12.85° C 11.59° C 14.57° C
March 5 12.84° C 11.5° C 14.54° C
March 6 12.79° C 11.36° C 14.5° C
March 7 12.79° C 11.26° C 14.46° C
March 8 12.8° C 11.37° C 14.46° C
March 9 12.77° C 11.58° C 14.45° C
March 10 12.74° C 11.67° C 14.34° C
March 11 12.85° C 11.72° C 14.37° C
March 12 12.95° C 11.78° C 14.5° C
March 13 12.98° C 11.78° C 14.52° C
March 14 12.98° C 11.74° C 14.59° C
March 15 12.93° C 11.85° C 14.6° C
March 16 12.91° C 11.9° C 14.6° C
March 17 13.05° C 12.17° C 14.49° C
March 18 13.2° C 12.1° C 15.14° C
March 19 13.24° C 12.01° C 15.59° C
March 20 13.14° C 11.91° C 15.36° C
March 21 13.14° C 11.68° C 15.02° C
March 22 13.12° C 11.55° C 15.08° C
March 23 13.13° C 11.5° C 15.09° C
March 24 13.15° C 11.5° C 15.22° C
March 25 13.14° C 11.52° C 15.26° C
March 26 13.09° C 11.87° C 15° C
March 27 13.07° C 11.88° C 14.86° C
March 28 12.98° C 11.87° C 15.05° C
March 29 12.87° C 11.98° C 14.86° C
March 30 12.83° C 11.88° C 14.99° C
March 31 12.97° C 11.78° C 15.41° C

Where March Sits in the Year

March highlighted

9.0° C
11.6° C
14.3° C
16.9° C
19.5° C
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
13.79° C
13.46° C
12.98° C
12.27° C
12.53° C
13.57° C
14.4° C
15.11° C
15.77° C
15.62° C
14.92° C
14.27° C
10-year monthly history for Arroyo Grande. Bars span historical low to high; the line marks the monthly average. Range Average
January → February → March → April → May → June → July → August → September → October → November → December →

Nearby Locations in March

Compare other United States water for the same month

Arroyo Grande Location

35.1186, -120.5907

35.11859, -120.59073 View on OpenStreetMap →

Arroyo Grande sits at 35.1186°N, 120.5907°W, on the coast of California, United States. The marker on the map shows the spot the readings on this page come from. It usually sits a short distance from the town centre, out on the open water itself, so the numbers stay tied to the coast rather than a generic point inland.

Coastlines bend, headlands focus the water, and the temperature can run noticeably differently between two beaches that look close together on a map. Comparing nearby locations is a quick way to see how local geography is shaping the readings.

Nearest locations to Arroyo Grande