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Sea Temperature in Katwijk in September

Complete information on the sea temperature range in the North Sea in Katwijk in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Katwijk. 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 Katwijk in September

61°F

MINIMUN

65°F

AVERAGE

70°F

MAXIMUM

Historical Data of Water Temperature in September in Katwijk

Water Temperature Chart for North Sea in Katwijk in September

Sea Temperature Table in Katwijk in September Over the Past Years

Day202420232022Average
Sep 166°C66°C64°C66°C
Sep 266°C68°C61°C65°C
Sep 364°C68°C63°C65°C
Sep 466°C66°C61°C65°C
Sep 564°C66°C64°C65°C
Sep 664°C66°C66°C66°C
Sep 764°C66°C61°C65°C
Sep 866°C66°C63°C66°C
Sep 968°C66°C64°C67°C
Sep 1066°C66°C61°C65°C
Sep 1163°C66°C63°C65°C
Sep 1263°C64°C61°C64°C
Sep 1363°C64°C64°C64°C
Sep 1464°C66°C68°C66°C
Sep 1563°C66°C68°C65°C
Sep 1663°C66°C66°C65°C
Sep 1763°C66°C61°C64°C
Sep 1866°C66°C64°C65°C
Sep 1966°C66°C66°C65°C
Sep 2066°C64°C66°C65°C
Sep 2164°C64°C64°C64°C
Sep 2264°C64°C63°C64°C
Sep 2364°C64°C68°C65°C
Sep 2464°C64°C66°C65°C
Sep 2564°C64°C63°C64°C
Sep 2664°C64°C64°C64°C
Sep 2764°C63°C63°C64°C
Sep 2864°C63°C63°C64°C
Sep 2966°C63°C63°C64°C
South Holland, NetherlandsSouth Holland, NetherlandsSouth Holland, Netherlands

Katwijk Climate and Swimming Opportunities in September

66°F

Average Day Air Temperature

52°F

Average Night Air Temperature

3 in

Precipitation Amount per Month

13 days

Number of Rainy Days

13 hrs

Daylight
per Day

5 hrs

Sunshine
per Day

12 mph

Average Wind Speed

82%

Average
humidity

Katwijk lies within the South Holland in Netherlands. The average daytime temperature in Katwijk in September is 19°C (65°F), while the nighttime average is 11°C (52°F). There are typically 13 rainy days during the month, with a total precipitation of 87 mm (3.4 inches). The daylight duration in September in Katwijk is 13 hours, with an average of 5 hours of sunshine per day. The average wind speed in September is 19 km/h (12 mph), and the humidity level is around 82%.

The water temperature in Katwijk in September ranges from 17°C to 19°C (63°F to 66°F). At the beginning of the month, the average temperature is around 19°C (66°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 Katwijk for September is 18°C (64°F). Ideal conditions for a refreshing swim, though some may still find it a bit cool.

Frequently Asked Questions About Water Temperatures in September in Katwijk

What is the sea temperature in Katwijk in September?

The water temperature in the North Sea in Katwijk in September ranges from 17°C to 19°C (63°F to 66°F).

Is it possible to swim in the North Sea in Katwijk in September?

The average sea temperature in Katwijk in September is 18°C (64°F), and the air temperature is 19°C (65°F), so ideal conditions for a refreshing swim, though some may still find it a bit cool.