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Observation City water temperature
Observation City ratings
Quality on a good day: 3.3
Consistency of Surf: 3.3
Difficulty Level: 3.3
Wind and Kite Surfing: 4.0
Crowds: 2.3

Overall: 3.8

See all 18 ratings

Based on 3 votes. Vote


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Observation City Water Temperature and Wetsuit Guide

(Perth City Coast, Australia)

Today's Observation City sea temperature is 21.3 °C.

Statistics for 26 May (1981–2005) – mean: 21.4 °C, range: 20.2 °C to 23.9 °C

The Observation City water temperature is warm (21 °C) and the air temperature not too different (windchill forecast 17 °C). A good quality summer wetsuit would be ideal though a shorty will suffice.

Australia Sea Water Temperature

Map of current Australia
Surface Water Temperatures
based on measurements from oceanographic satellites
Australia Water Temperature Anomaly

Map of current Australia
Sea Water Temperature Anomalies

(compared with long term averages
at this time of year)

(click thumbnails to expand)

Below is a graph of Historical Sea Surface Temperature for Observation City. This has been derived from analysis of two decades of oceanographic satellite measurements of nearby open water. We have calculated the average water temperature variation around the year as well as the extremes that have been observed on each date.

Observation City Water Temperature Graph

All of the graphs for the surf breaks presented on Surf-Forecast.com are on the same scale to enable comparison between locations around the world.

Observation City sea water temperatures peak in the range 22 to 24°C (72 to 75°F) on around the 1st of March and are at their minimum on about the 10th of September, in the range 17 to 20°C (63 to 68°F). Observation City sea water temperatures are always warm reach their warmest at the beginning of March. You'll need a 2mm neoprene top or a shorty at dawn/dusk or if it's windy. The minimum Observation City sea water temperatures in early to mid September require something like a 3/2mm fully sealed wetsuit.

Actual sea surface water temperatures close to shore at Observation City can vary by several degrees compared with these open water averages. This is especially true after heavy rain, close to river mouths or after long periods of strong offshore winds. Offshore winds cause colder deep water to replace surface water that has been warmed by the sun. Air temperature, wind-chill and sunshine should also be considered before deciding on the kind of wetsuit needed to stay warm when surfing at Observation City. Refer to our detailed weather forecasts for this information.