Portscatho — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for Portscatho (England, United Kingdom). It includes the current water temperature, daily data for the last month presented in a simple chart, and a 7-day forecast. The page also compares today’s value with typical averages for this period, shows usual monthly ranges during the year, and lists nearby beaches with short descriptions. Local weather for the next few days and general details about Portscatho help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in Portscatho in the English Channel today is 13°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
Water temperature in Portscatho rose over the last 30 days but fell over the last week. Currently, the sea water temperature at this location matches the average for this day in previous years.
According to our forecast, Water temperature in Portscatho will be 14.8°C in the next 7 days. See the table below for daily data for the upcoming week.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUN 5 | 15.4°C | 14.0°C | |
| JUN 6 | 15.1°C | 14.0°C | |
| JUN 7 | 14.8°C | 14.0°C | |
| JUN 8 | 14.3°C | 13.5°C | |
| JUN 9 | 13.9°C | 13.8°C | |
| JUN 10 | 13.3°C | 13.8°C | |
| JUN 11 | 13.4°C | 14.0°C | |
| JUN 12 | 13.4°C | 14.0°C | |
| JUN 13 | 13.3°C | 14.0°C | 13.3°C |
| JUN 14 | 14.0°C | 13.5°C | |
| JUN 15 | 14.0°C | 13.7°C | |
| JUN 16 | 14.3°C | 14.0°C | |
| JUN 17 | 14.3°C | 14.2°C | |
| JUN 18 | 15.0°C | 14.4°C | |
| JUN 19 | 15.5°C | 14.6°C | |
| JUN 20 | 15.3°C | 14.8°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.
Water temperature data for this location is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.
Annual Water Temperature Overview by Month
Monthly Water Temp Ranges
Annual Water Temperature Trend
Portscatho sits on the sheltered east side of Cornwall’s Roseland Peninsula, where the Atlantic influence and a mild Gulf Stream effect give the local sea temperatures a relatively temperate profile for the British coast. Seasonal water temperatures typically range from around 8–10 °C in the coldest winter months to roughly 9–13 °C in spring as the sea slowly warms. Summer months are the warmest, with sea temperatures commonly between 14–18 °C and occasional warm spells pushing waters toward 19–20 °C. In autumn the sea generally cools to about 12–16 °C. Conditions can vary considerably over short distances depending on exposure, tidal state and recent weather, so local bays and sheltered coves will often feel warmer than exposed headlands.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 9°C | 11°C | 12°C |
| February | 9°C | 10°C | 12°C |
| March | 8°C | 10°C | 12°C |
| April | 9°C | 11°C | 13°C |
| May | 10°C | 12°C | 15°C |
| June | 12°C | 15°C | 18°C |
| July | 13°C | 16°C | 20°C |
| August | 15°C | 17°C | 19°C |
| September | 15°C | 16°C | 19°C |
| October | 13°C | 15°C | 17°C |
| November | 12°C | 14°C | 15°C |
| December | 10°C | 12°C | 13°C |
* Click on a month to view detailed water temperature data.
Portscatho: Weather Forecast
June 14
June 15
June 16
Location, Beaches & Local Information
Nearby Beaches & Facilities
The Porth
Porthcurnick Beach
Portscatho Beach
Porthbean Beach
St Mawes Beach
Porthbeor Beach
Little & Great Molunan Beaches
St. Anthony's Head Beach
Pendower
Swimming Conditions
Swimming around Portscatho is popular in summer when the milder water makes paddling and casual swims more comfortable, and the area’s small sandy beaches and calm inlets suit families and less experienced swimmers. Cooler months are better suited to wetsuit swimmers, snorkelers and those seeking open-water training, as rocky shores and deeper channels can be chilly and occasionally subject to stronger currents and boat traffic. Facilities and lifeguard cover are limited compared with larger resort beaches, so visitors should check local advice, take care with tides and wind, and wear appropriate thermal protection when water temperatures are below about 15 °C.