Portbou — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for Portbou (Spain). 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 Portbou help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in Portbou in the Balearic Sea today is 20°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming.
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 Portbou rose over the last 30 days but fell over the last week. Currently, the sea water at this location is slightly cooler than average for this day in previous years.
According to our forecast, Water temperature in Portbou will be 20.5°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 | 21.1°C | 19.3°C | |
| JUN 6 | 20.9°C | 19.3°C | |
| JUN 7 | 20.2°C | 19.5°C | |
| JUN 8 | 20.0°C | 19.3°C | |
| JUN 9 | 19.7°C | 20.3°C | |
| JUN 10 | 20.0°C | 20.5°C | |
| JUN 11 | 20.0°C | 20.5°C | |
| JUN 12 | 20.0°C | 20.8°C | |
| JUN 13 | 19.7°C | 20.8°C | 19.7°C |
| JUN 14 | 20.3°C | 19.8°C | |
| JUN 15 | 20.3°C | 19.9°C | |
| JUN 16 | 21.0°C | 20.0°C | |
| JUN 17 | 21.0°C | 20.1°C | |
| JUN 18 | 21.0°C | 20.3°C | |
| JUN 19 | 21.0°C | 20.4°C | |
| JUN 20 | 21.3°C | 20.5°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
Portbou is a small coastal town on the northern Costa Brava in Catalonia, facing the Mediterranean near the French border. The sea here follows the typical seasonal pattern of the region, with cooler waters in winter and a steady rise through spring into summer. Average winter temperatures generally sit around 12–15 °C, while spring brings a gradual warming to about 14–19 °C. Peak summer months see the warmest water, commonly ranging from 20–25 °C, with August often at the highest values. In autumn the sea cools again, usually falling to roughly 17–21 °C. Local conditions can vary with wind, nearby currents and weather, so day-to-day temperatures may shift a few degrees from these seasonal ranges.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 12°C | 13°C | 15°C |
| February | 11°C | 13°C | 14°C |
| March | 11°C | 13°C | 15°C |
| April | 12°C | 14°C | 17°C |
| May | 14°C | 17°C | 20°C |
| June | 16°C | 21°C | 24°C |
| July | 18°C | 22°C | 26°C |
| August | 17°C | 23°C | 27°C |
| September | 17°C | 22°C | 25°C |
| October | 13°C | 19°C | 23°C |
| November | 15°C | 18°C | 21°C |
| December | 11°C | 15°C | 17°C |
* Click on a month to view detailed water temperature data.
Portbou: Weather Forecast
June 14
June 15
June 16
Location, Beaches & Local Information
Nearby Beaches & Facilities
Portbou
les Tres Platgetes
Claper
Del Pi
Beach Pi
Beach Les Tres Platgetes
En Goixa
Colera
Rovellada
Swimming Conditions
Swimming and beach holidays in Portbou are geared more to nature and quieter seaside experiences than large resort infrastructure. The town’s shoreline is a mix of small pebble beaches and rocky coves, with clear water that is well suited to swimming, snorkeling and short coastal swims when temperatures are in the summer range. Facilities and lifeguard coverage are limited compared with bigger towns, so swimmers should be prepared for pebbly entries and some uneven seabed. Early and late season swimming is possible but often requires a wetsuit when water is below about 20 °C; for broader sandy beaches and more amenities, nearby coastal villages offer additional options while Portbou remains attractive for those seeking calmer, scenic water-based activities.