Arade River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Arade River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Arade River today is 21.8°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. 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 23 | 21.2°C | 23.9°C | |
| JUN 24 | 21.3°C | 23.9°C | |
| JUN 25 | 21.3°C | 23.9°C | |
| JUN 26 | 21.3°C | 23.9°C | |
| JUN 27 | 21.1°C | 23.9°C | |
| JUN 28 | 21.3°C | 23.9°C | |
| JUN 29 | 21.3°C | 23.9°C | |
| JUN 30 | 21.4°C | 23.9°C | |
| JUL 1 | 27.0°C | 22.1°C | |
| JUL 2 | 27.0°C | 22.3°C | |
| JUL 3 | 27.0°C | 22.6°C | |
| JUL 4 | 27.0°C | 22.8°C | |
| JUL 5 | 27.0°C | 23.1°C | |
| JUL 6 | 27.0°C | 23.4°C | |
| JUL 7 | 27.0°C | 23.6°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 | 13°C |
| February | 9°C | 12°C | 15°C |
| March | 10°C | 14°C | 17°C |
| April | 12°C | 16°C | 18°C |
| May | 15°C | 19°C | 24°C |
| June | 19°C | 24°C | 28°C |
| July | 22°C | 27°C | 28°C |
| August | 22°C | 27°C | 28°C |
| September | 22°C | 27°C | 28°C |
| October | 14°C | 18°C | 20°C |
| November | 11°C | 15°C | 18°C |
| December | 9°C | 12°C | 15°C |
Arade River: Water Temperature by Location
Arade River: Weather Forecast
July 1
July 2
July 3
July 4
Location & Local Information
Source Serra do Malhão at the gully called Barranco do Pé do Coelho
Mouth Into the Atlantic Ocean at Portimão
Length 75 km (47 mi)
The Rio Arade, in Portugal’s Faro District and commonly called Rio Arade, is a tidal river whose water temperature depends on location, season and tide. In the lower estuary near Portimão the water tends to be milder and more influenced by the Atlantic, typically ranging in winter (December–February) from about 14–18 °C (57–64 °F) and in summer (June–August) from about 20–24 °C (68–75 °F). Upstream, in more sheltered freshwater stretches and reservoirs, temperatures are usually cooler in winter — roughly 10–14 °C (50–57 °F) — and can warm in summer to 18–24 °C (64–75 °F), with shallow, sunlit spots reaching the higher end of these ranges.
Swimming in the Rio Arade is possible but conditional. There are no universal bans, yet safety and water quality vary: the estuary sees boat traffic, changing currents and occasional pollution after heavy rain, while upstream pools may be calmer but less monitored. Local municipalities post bathing advisories and designated spots; many people swim in sheltered coves or at nearby coastal beaches where monitoring is regular. Visitors should check local signage, recent water-quality information and be mindful of tides, currents and boat lanes before entering the water.