Sea Temperature in Viana Do Castelo in September

Complete information on the sea temperature range in the Atlantic Ocean in Viana Do Castelo in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Viana Do Castelo. 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 Viana Do Castelo in September

13°C

MINIMUN

17°C

AVERAGE

21°C

MAXIMUM

Historical Data of Water Temperature in September in Viana Do Castelo

Water Temperature Chart for Atlantic Ocean in Viana Do Castelo in September

Sea Temperature Table in Viana Do Castelo in September Over the Past Years

Day	2024	2023	2022	Average
Sep 1	18°C	18°C	17°C	17.3°C
Sep 2	19°C	17°C	19°C	17.8°C
Sep 3	18°C	18°C	18°C	17.3°C
Sep 4	18°C	18°C	19°C	17.5°C
Sep 5	19°C	17°C	17°C	17.0°C
Sep 6	20°C	17°C	17°C	17.0°C
Sep 7	20°C	17°C	19°C	17.5°C
Sep 8	19°C	17°C	17°C	16.8°C
Sep 9	19°C	18°C	20°C	18.0°C
Sep 10	20°C	17°C	18°C	17.5°C
Sep 11	20°C	17°C	20°C	18.0°C
Sep 12	20°C	18°C	17°C	17.5°C
Sep 13	21°C	17°C	20°C	18.0°C
Sep 14	20°C	18°C	18°C	17.5°C
Sep 15	20°C	19°C	16°C	17.5°C
Sep 16	20°C	18°C	16°C	17.3°C
Sep 17	20°C	18°C	16°C	17.3°C
Sep 18	20°C	18°C	20°C	18.3°C
Sep 19	20°C	18°C	18°C	17.8°C
Sep 20	19°C	18°C	19°C	17.8°C
Sep 21	19°C	19°C	20°C	18.3°C
Sep 22	18°C	18°C	20°C	17.8°C
Sep 23	18°C	18°C	20°C	17.8°C
Sep 24	18°C	18°C	20°C	17.8°C
Sep 25	18°C	19°C	16°C	17.0°C
Sep 26	18°C	19°C	20°C	18.0°C
Sep 27	18°C	19°C	17°C	17.3°C
Sep 28	17°C	18°C	16°C	16.5°C
Sep 29	17°C	18°C	20°C	17.8°C

Viana Do Castelo Climate and Swimming Opportunities in September

22°C

Average Day Air Temperature

15°C

Average Night Air Temperature

92 mm

Precipitation Amount per Month

9 days

Number of Rainy Days

12 hrs

Daylight
per Day

7 hrs

Sunshine
per Day

9 km/h

Average Wind Speed

75%

Average
humidity

Viana Do Castelo lies within the Viana do Castelo District in Portugal. The average daytime temperature in Viana Do Castelo in September is 22°C (71°F), while the nighttime average is 15°C (60°F). There are typically nine rainy days during the month, with a total precipitation of 92 mm (3.6 inches). The daylight duration in September in Viana Do Castelo is 12 hours, with an average of 7 hours of sunshine per day. The average wind speed in September is 9 km/h (6 mph), and the humidity level is around 75%.

The water temperature in Viana Do Castelo in September ranges from 16°C to 18°C (61°F to 64°F). At the beginning of the month, the average temperature is around 17°C (63°F), shifting to 18°C (64°F) by mid-September and reaching 18°C (64°F) in the last ten days. Overall, the average sea temperature in Viana Do Castelo for September is 18°C (64°F). Very comfortable swimming conditions. The water is fresh but not too cold, and the air temperature is pleasant.

Sea Temperature in September in Nearby Cities

Frequently Asked Questions About Water Temperatures in September in Viana Do Castelo

What is the sea temperature in Viana Do Castelo in September?

The water temperature in the Atlantic Ocean in Viana Do Castelo in September ranges from 16°C to 18°C (61°F to 64°F).

Is it possible to swim in the Atlantic Ocean in Viana Do Castelo in September?

The average sea temperature in Viana Do Castelo in September is 18°C (64°F), and the air temperature is 22°C (71°F), so very comfortable swimming conditions. The water is fresh but not too cold, and the air temperature is pleasant.