Sea Temperature in Dee Why in July

Complete information on the sea temperature range in the Tasman Sea in Dee Why in July. Historical daily data. Climate details for July. Tips on swimming conditions and beach relaxation in Dee Why. 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 Dee Why in July

15°C

MINIMUN

18°C

AVERAGE

21°C

MAXIMUM

Historical Data of Water Temperature in July in Dee Why

Water Temperature Chart for Tasman Sea in Dee Why in July

Sea Temperature Table in Dee Why in July Over the Past Years

Day	2024	2023	2022	Average
Jul 1	20°C	19°C	21°C	19.5°C
Jul 2	19°C	17°C	21°C	18.8°C
Jul 3	19°C	18°C	21°C	19.0°C
Jul 4	19°C	18°C	21°C	19.0°C
Jul 5	20°C	18°C	20°C	19.0°C
Jul 6	19°C	18°C	20°C	18.8°C
Jul 7	20°C	18°C	20°C	19.0°C
Jul 8	19°C	18°C	20°C	18.8°C
Jul 9	19°C	18°C	20°C	18.8°C
Jul 10	19°C	18°C	20°C	18.8°C
Jul 11	19°C	18°C	20°C	18.8°C
Jul 12	19°C	19°C	20°C	19.0°C
Jul 13	20°C	19°C	20°C	19.3°C
Jul 14	19°C	18°C	20°C	18.8°C
Jul 15	19°C	19°C	20°C	19.0°C
Jul 16	19°C	18°C	20°C	18.8°C
Jul 17	18°C	18°C	20°C	18.3°C
Jul 18	19°C	18°C	20°C	18.5°C
Jul 19	19°C	18°C	20°C	18.8°C
Jul 20	20°C	18°C	20°C	19.0°C
Jul 21	19°C	18°C	20°C	18.5°C
Jul 22	19°C	18°C	20°C	18.5°C
Jul 23	19°C	17°C	20°C	18.3°C
Jul 24	20°C	18°C	21°C	19.0°C
Jul 25	19°C	18°C	21°C	18.8°C
Jul 26	19°C	18°C	20°C	18.5°C
Jul 27	19°C	18°C	20°C	18.5°C
Jul 28	19°C	17°C	21°C	18.5°C
Jul 29	19°C	17°C	21°C	18.5°C
Jul 30	19°C	17°C	21°C	18.5°C

Dee Why Climate and Swimming Opportunities in July

18°C

Average Day Air Temperature

8°C

Average Night Air Temperature

74 mm

Precipitation Amount per Month

9 days

Number of Rainy Days

10 hrs

Daylight
per Day

6 hrs

Sunshine
per Day

14 km/h

Average Wind Speed

60%

Average
humidity

Dee Why lies within the New South Wales in Australia. The average daytime temperature in Dee Why in July is 18°C (65°F), while the nighttime average is 8°C (46°F). There are typically nine rainy days during the month, with a total precipitation of 74 mm (2.9 inches). The daylight duration in July in Dee Why is 10 hours, with an average of 6 hours of sunshine per day. The average wind speed in July is 14 km/h (9 mph), and the humidity level is around 60%.

The water temperature in Dee Why in July ranges from 18°C to 19°C (64°F to 66°F). At the beginning of the month, the average temperature is around 19°C (66°F), shifting to 19°C (66°F) by mid-July and reaching 19°C (66°F) in the last ten days. Overall, the average sea temperature in Dee Why for July is 19°C (66°F). Ideal conditions for a refreshing swim, though some may still find it a bit cool.

Sea Temperature in July in Nearby Cities

Frequently Asked Questions About Water Temperatures in July in Dee Why

What is the sea temperature in Dee Why in July?

The water temperature in the Tasman Sea in Dee Why in July ranges from 18°C to 19°C (64°F to 66°F).

Is it possible to swim in the Tasman Sea in Dee Why in July?

The average sea temperature in Dee Why in July is 19°C (66°F), and the air temperature is 18°C (65°F), so ideal conditions for a refreshing swim, though some may still find it a bit cool.