Valença — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Valença, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Valença today is 19.2°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
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUN 27 | 19.3°C | 18.0°C | |
| JUN 28 | 18.8°C | 18.0°C | |
| JUN 29 | 18.8°C | 18.0°C | |
| JUN 30 | 18.8°C | 18.0°C | |
| JUL 1 | 19.3°C | 21.0°C | |
| JUL 2 | 19.3°C | 21.0°C | |
| JUL 3 | 19.3°C | 21.0°C | |
| JUL 4 | 19.2°C | 21.0°C | |
| JUL 5 | 21.0°C | 19.3°C | |
| JUL 6 | 21.0°C | 19.4°C | |
| JUL 7 | 21.0°C | 19.5°C | |
| JUL 8 | 21.0°C | 19.6°C | |
| JUL 9 | 21.0°C | 19.7°C | |
| JUL 10 | 21.0°C | 19.7°C | |
| JUL 11 | 21.0°C | 19.8°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 | 6°C | 9°C | 12°C |
| February | 6°C | 9°C | 12°C |
| March | 8°C | 11°C | 14°C |
| April | 9°C | 13°C | 17°C |
| May | 11°C | 16°C | 20°C |
| June | 14°C | 18°C | 23°C |
| July | 17°C | 21°C | 26°C |
| August | 17°C | 21°C | 26°C |
| September | 14°C | 18°C | 23°C |
| October | 12°C | 16°C | 18°C |
| November | 9°C | 12°C | 15°C |
| December | 6°C | 9°C | 12°C |
Valença: Weather Forecast
July 5
July 6
July 7
July 8
July 9
Location & Local Information
Valença, in the Viana do Castelo district, lies on the banks of the Minho River and is surrounded by freshwater bodies and small reservoirs rather than large natural lakes. Water temperatures in these inland freshwater areas follow a typical Atlantic-influenced northern Portugal pattern: winter temperatures commonly range from about 8–12 °C (46–54 °F), spring from roughly 10–16 °C (50–61 °F), summer from about 18–24 °C (64–75 °F), and autumn from around 14–20 °C (57–68 °F). Local conditions such as depth, shading, recent rainfall and river flow can cause variations from these averages, so actual readings at any spot may differ by several degrees.
Swimming is possible in parts of the Minho River and in nearby reservoirs during the warmer months, but whether it is officially allowed depends on local signage and water-quality monitoring. Authorities periodically assess bacterial levels and issue advisories; strong currents, submerged hazards and boat traffic also affect safety. Therefore bathing is typically permitted only in designated or commonly used spots when water quality and conditions meet public-health and safety standards. Visitors should check local notices and exercise caution, especially outside summer when temperatures are lower and conditions can be more hazardous.