Newcastle — Water Temperature in July

Water Temperature Range

16°C

minimum

19°C

average

21°C

maximum

Water Temperature Chart for July

The chart shows the average daily water temperature for each day of the month based on historical data.

Table of Water Temperatures by Day of the Month for Previous Years

	2025	2024	2023	2022
JUL 1	20°C	20°C	19°C	19°C
JUL 2	19°C	20°C	18°C	18°C
JUL 3	19°C	20°C	19°C	18°C
JUL 4	20°C	20°C	20°C	18°C
JUL 5	19°C	20°C	19°C	18°C
JUL 6	19°C	20°C	19°C	18°C
JUL 7	19°C	20°C	19°C	18°C
JUL 8	19°C	20°C	19°C	18°C
JUL 9	19°C	20°C	19°C	18°C
JUL 10	19°C	20°C	20°C	18°C
JUL 11	19°C	20°C	20°C	18°C
JUL 12	19°C	19°C	20°C	17°C
JUL 13	20°C	20°C	20°C	19°C
JUL 14	19°C	19°C	19°C	19°C
JUL 15	19°C	19°C	19°C	18°C
JUL 16	19°C	20°C	18°C	19°C
JUL 17	19°C	20°C	19°C	18°C
JUL 18	19°C	19°C	19°C	18°C
JUL 19	19°C	19°C	19°C	18°C
JUL 20	18°C	19°C	19°C	18°C
JUL 21	18°C	19°C	19°C	18°C
JUL 22	18°C	19°C	19°C	18°C
JUL 23	18°C	19°C	19°C	18°C
JUL 24	18°C	19°C	19°C	18°C
JUL 25	19°C	19°C	20°C	18°C
JUL 26	18°C	19°C	19°C	18°C
JUL 27	18°C	19°C	19°C	18°C
JUL 28	18°C	19°C	19°C	17°C
JUL 29	18°C	19°C	19°C	17°C
JUL 30	18°C	19°C	19°C	18°C
JUL 31	18°C	19°C	19°C	18°C

Climate and Swimming Opportunities in Newcastle in July

Average Day Air Temperature

18°C

Average Night Air Temperature

8°C

Precipitation Amount per Month

112 mm

Number of Rainy Days

Daylight per Day

10 hrs

Sunshine per Day

7 hrs

Average Wind Speed

14 km/h

Average Humidity

64%

At such water and air temperatures, swimming often feels chilly and is best for short swims. Getting out can feel cold, so it helps to have dry clothes ready right away.