Perth — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Perth, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Perth today is 12.2°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear. It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart Over the Last 30 Days
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| SEP 16 | 13.5°C | 14.0°C | |
| SEP 17 | 13.3°C | 14.0°C | |
| SEP 18 | 13.2°C | 14.0°C | |
| SEP 19 | 13.3°C | 14.0°C | |
| SEP 20 | 13.1°C | 14.0°C | |
| SEP 21 | 12.8°C | 14.0°C | |
| SEP 22 | 12.0°C | 14.0°C | |
| SEP 23 | 12.2°C | 14.0°C | |
| SEP 24 | 14.0°C | 12.3°C | |
| SEP 25 | 14.0°C | 12.4°C | |
| SEP 26 | 14.0°C | 12.5°C | |
| SEP 27 | 14.0°C | 12.6°C | |
| SEP 28 | 14.0°C | 12.7°C | |
| SEP 29 | 14.0°C | 12.7°C | |
| SEP 30 | 14.0°C | 12.8°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 0°C | 2°C | 5°C |
| February | 0°C | 3°C | 6°C |
| March | 1°C | 5°C | 8°C |
| April | 4°C | 7°C | 10°C |
| May | 7°C | 11°C | 16°C |
| June | 12°C | 19°C | 24°C |
| July | 14°C | 18°C | 23°C |
| August | 12°C | 17°C | 21°C |
| September | 9°C | 14°C | 18°C |
| October | 6°C | 9°C | 12°C |
| November | 3°C | 6°C | 9°C |
| December | 0°C | 4°C | 7°C |
Perth: Weather Forecast
September 23
September 24
September 25
September 26
September 27
Location & Local Information
Perth, often called the “Gateway to the Highlands,” sits on the banks of the River Tay, Scotland’s longest and one of its most dynamic rivers. The Tay near Perth is wide and fast-flowing, carrying cool, clean water from the surrounding hills. Because of the northern climate and mountain-fed sources, the river remains relatively cold throughout the year. In winter, temperatures average around 3–5°C (37–41°F), rising slowly in spring to about 8–10°C (46–50°F). During the summer months, July and August bring the warmest conditions, when the Tay can reach 14–16°C (57–61°F) in calm, shallow areas. By early autumn, it cools again to roughly 10–12°C (50–54°F), retaining a brisk, refreshing quality even during mild weather.
Swimming in the River Tay at Perth is possible but best suited to experienced wild swimmers who are familiar with cold-water conditions. The current can be strong, and the water remains cool even in summer, so proper preparation and safety awareness are essential. Many people instead enjoy kayaking, paddleboarding, or riverside walks that take in the scenic views of the Tay and its bridges. Beyond the river, Perth offers access to the nearby Kinnoull Hill Woodland Park, Scone Palace, and the rolling landscapes that mark the edge of the Scottish Highlands.