Sea Temperature in Marietta in May

Complete information on the sea temperature range in the Salish Sea in Marietta in May. Historical daily data. Climate details for May. Tips on swimming conditions and beach relaxation in Marietta. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Water Temperature Range in Marietta in May

45°F

MINIMUN

50°F

AVERAGE

55°F

MAXIMUM

Historical Data of Water Temperature in May in Marietta

Water Temperature Chart for Salish Sea in Marietta in May

Sea Temperature Table in Marietta in May Over the Past Years

Day	2024	2023	2022	Average
May 1	50°C	50°C	46°C	49°C
May 2	50°C	50°C	46°C	49°C
May 3	50°C	52°C	46°C	49°C
May 4	52°C	50°C	46°C	50°C
May 5	50°C	50°C	46°C	49°C
May 6	52°C	50°C	48°C	50°C
May 7	50°C	50°C	48°C	50°C
May 8	48°C	52°C	48°C	50°C
May 9	50°C	52°C	48°C	50°C
May 10	50°C	52°C	48°C	50°C
May 11	50°C	52°C	50°C	51°C
May 12	52°C	54°C	50°C	51°C
May 13	52°C	52°C	50°C	51°C
May 14	52°C	52°C	50°C	51°C
May 15	52°C	54°C	50°C	51°C
May 16	52°C	54°C	52°C	52°C
May 17	52°C	54°C	52°C	52°C
May 18	52°C	54°C	52°C	52°C
May 19	52°C	54°C	52°C	52°C
May 20	52°C	54°C	46°C	51°C
May 21	52°C	54°C	46°C	51°C
May 22	52°C	54°C	46°C	51°C
May 23	52°C	54°C	46°C	51°C
May 24	52°C	54°C	46°C	51°C
May 25	52°C	54°C	46°C	51°C
May 26	50°C	54°C	46°C	51°C
May 27	52°C	54°C	46°C	51°C
May 28	52°C	54°C	46°C	51°C
May 29	52°C	54°C	46°C	51°C
May 30	52°C	54°C	46°C	51°C

Marietta Climate and Swimming Opportunities in May

61°F

Average Day Air Temperature

46°F

Average Night Air Temperature

4 in

Precipitation Amount per Month

12 days

Number of Rainy Days

15 hrs

Daylight
per Day

7 hrs

Sunshine
per Day

7 mph

Average Wind Speed

74%

Average
humidity

Marietta lies within the Washington in United States. The average daytime temperature in Marietta in May is 60°F (16°C), while the nighttime average is 47°F (8°C). There are typically 12 rainy days during the month, with a total precipitation of 3.7 inches (93 mm). The daylight duration in May in Marietta is 15 hours, with an average of 7 hours of sunshine per day. The average wind speed in May is 7 mph (11 km/h), and the humidity level is around 74%.

The water temperature in Marietta in May ranges from 48°F to 52°F (9°C to 11°C). At the beginning of the month, the average temperature is around 50°F (10°C), shifting to 52°F (11°C) by mid-May and reaching 50°F (10°C) in the last ten days. Overall, the average sea temperature in Marietta for May is 50°F (10°C). Ideal conditions for a refreshing swim, though some may still find it a bit cool.

Sea Temperature in May in Nearby Cities

Frequently Asked Questions About Water Temperatures in May in Marietta

What is the sea temperature in Marietta in May?

The water temperature in the Salish Sea in Marietta in May ranges from 48°F to 52°F (9°C to 11°C).

Is it possible to swim in the Salish Sea in Marietta in May?

The average sea temperature in Marietta in May is 50°F (10°C), and the air temperature is 60°F (16°C), so ideal conditions for a refreshing swim, though some may still find it a bit cool.