Sea Temperature in Portland in May

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

14°C

MINIMUN

16°C

AVERAGE

18°C

MAXIMUM

Historical Data of Water Temperature in May in Portland

Water Temperature Chart for Tasman Sea in Portland in May

Sea Temperature Table in Portland in May Over the Past Years

Day	2024	2023	2022	Average
May 1	18°C	15°C	17°C	16.3°C
May 2	17°C	15°C	16°C	16.0°C
May 3	16°C	15°C	15°C	15.3°C
May 4	17°C	15°C	14°C	15.3°C
May 5	17°C	16°C	15°C	15.5°C
May 6	17°C	16°C	15°C	16.0°C
May 7	17°C	15°C	14°C	15.3°C
May 8	17°C	15°C	16°C	15.5°C
May 9	17°C	15°C	17°C	15.8°C
May 10	18°C	15°C	14°C	15.5°C
May 11	17°C	15°C	15°C	15.5°C
May 12	17°C	15°C	14°C	15.3°C
May 13	17°C	15°C	17°C	16.0°C
May 14	17°C	14°C	16°C	15.5°C
May 15	16°C	15°C	16°C	15.5°C
May 16	16°C	16°C	14°C	15.3°C
May 17	16°C	16°C	16°C	15.8°C
May 18	16°C	16°C	15°C	15.5°C
May 19	16°C	15°C	17°C	15.8°C
May 20	16°C	16°C	16°C	15.8°C
May 21	17°C	15°C	16°C	15.8°C
May 22	17°C	15°C	16°C	15.8°C
May 23	16°C	15°C	15°C	15.3°C
May 24	16°C	15°C	16°C	15.5°C
May 25	16°C	14°C	16°C	15.3°C
May 26	16°C	15°C	16°C	15.5°C
May 27	17°C	14°C	16°C	15.3°C
May 28	16°C	15°C	16°C	15.5°C
May 29	17°C	15°C	15°C	15.3°C
May 30	17°C	15°C	15°C	15.5°C

Portland Climate and Swimming Opportunities in May

17°C

Average Day Air Temperature

10°C

Average Night Air Temperature

75 mm

Precipitation Amount per Month

12 days

Number of Rainy Days

10 hrs

Daylight
per Day

4 hrs

Sunshine
per Day

21 km/h

Average Wind Speed

73%

Average
humidity

Portland lies within the Victoria in Australia. The average daytime temperature in Portland in May is 17°C (62°F), while the nighttime average is 10°C (49°F). There are typically 12 rainy days during the month, with a total precipitation of 75 mm (2.9 inches). The daylight duration in May in Portland is 10 hours, with an average of 4 hours of sunshine per day. The average wind speed in May is 21 km/h (13 mph), and the humidity level is around 73%.

The water temperature in Portland in May ranges from 15°C to 16°C (59°F to 61°F). At the beginning of the month, the average temperature is around 16°C (61°F), shifting to 16°C (61°F) by mid-May and reaching 16°C (61°F) in the last ten days. Overall, the average sea temperature in Portland for May is 16°C (61°F). Ideal conditions for a refreshing swim, though some may still find it a bit cool.

Frequently Asked Questions About Water Temperatures in May in Portland

What is the sea temperature in Portland in May?

The water temperature in the Tasman Sea in Portland in May ranges from 15°C to 16°C (59°F to 61°F).

Is it possible to swim in the Tasman Sea in Portland in May?

The average sea temperature in Portland in May is 16°C (61°F), and the air temperature is 17°C (62°F), so ideal conditions for a refreshing swim, though some may still find it a bit cool.