Arlanzón River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Arlanzón River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Arlanzón River today is 18.2°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 3 | 16.6°C | 16.0°C | |
| JUN 4 | 16.6°C | 16.0°C | |
| JUN 5 | 16.6°C | 16.0°C | |
| JUN 6 | 16.4°C | 16.0°C | |
| JUN 7 | 18.2°C | 16.0°C | |
| JUN 8 | 18.2°C | 16.0°C | |
| JUN 10 | 18.2°C | 16.0°C | |
| JUN 11 | 16.0°C | 18.1°C | |
| JUN 12 | 16.0°C | 18.0°C | |
| JUN 13 | 16.0°C | 17.9°C | |
| JUN 14 | 16.0°C | 17.8°C | |
| JUN 15 | 16.0°C | 17.7°C | |
| JUN 16 | 16.0°C | 17.5°C | |
| JUN 17 | 16.0°C | 17.4°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 | 3°C | 7°C | 9°C |
| February | 3°C | 7°C | 9°C |
| March | 5°C | 9°C | 11°C |
| April | 7°C | 11°C | 15°C |
| May | 9°C | 14°C | 20°C |
| June | 11°C | 16°C | 20°C |
| July | 14°C | 18°C | 23°C |
| August | 14°C | 18°C | 23°C |
| September | 11°C | 16°C | 20°C |
| October | 9°C | 13°C | 16°C |
| November | 6°C | 9°C | 12°C |
| December | 3°C | 7°C | 9°C |
Arlanzón River: Water Temperature by Location
Arlanzón River: Weather Forecast
June 9
June 10
June 11
June 12
June 13
June 14
Location & Local Information
Mouth Arlanza
• coordinates 42°06′30″N 4°09′54″W
Length 131.11 km (81.47 mi)
The Río Arlanzón in Castile and León has a typical temperate mountain-fed regime, so its water temperature changes notably through the year. In winter the river commonly ranges from about 4–8 °C (39–46 °F), with cold runoff after rains and snowmelt keeping temperatures low. Spring temperatures usually rise to roughly 8–14 °C (46–57 °F) as air warmth and increased discharge moderate extremes. In summer the warmest stretches can reach approximately 16–22 °C (61–72 °F) in slower pools and backwaters, while faster channels stay cooler. During autumn the river cools again to around 10–16 °C (50–61 °F) as daylight shortens and rainfall patterns change.
Swimming in the Río Arlanzón is possible in some rural or calm reaches but is not widespread or universally permitted. Within Burgos and other urbanized zones the river has engineered banks, weirs and variable water quality, and local regulations or posted signs can prohibit bathing for safety and health reasons. Even where swimming is allowed, cold temperatures outside mid-summer, variable flow, underwater obstacles and occasional contamination after heavy rains make caution advisable. Visitors should check local guidance, observe signage, and avoid swimming in fast currents or immediately downstream of storm drains or wastewater outlets.