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Najerilla River — Current Water Temperature, Annual Trends and Forecast

This page provides information on the current water temperature in the Najerilla River, trends, monthly ranges and the forecast for the coming days.

Najerilla River, Spain
Najerilla River, Spain © Por drcymo, CC BY-SA 2.0

Current Water Temperature

13.8°C
Today
13.9°C
Yesterday
15.1°C
A Week Ago
Get instant access to real-time water temperatures for this and all other locations with our iOS and Android apps.

Water Temperature in the Najerilla River today is 13.8°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

From September 30 to October 31

Table of Daily Sea Temperature Data

Date Current Average Forecast
OCT 2415.1°C14.0°C
OCT 2514.0°C14.0°C
OCT 2613.6°C14.0°C
OCT 2713.6°C14.0°C
OCT 2814.1°C14.0°C
OCT 2914.4°C14.0°C
OCT 3013.9°C14.0°C
OCT 3113.8°C14.0°C
NOV 110.6°C13.6°C
NOV 210.6°C13.5°C
NOV 310.6°C13.3°C
NOV 410.6°C13.2°C
NOV 510.6°C13.0°C
NOV 610.6°C12.8°C
NOV 710.6°C12.7°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
January4°C8°C10°C
February4°C8°C10°C
March6°C9°C12°C
April8°C11°C15°C
May9°C14°C20°C
June12°C18°C23°C
July15°C20°C25°C
August15°C20°C26°C
September12°C17°C22°C
October10°C14°C17°C
November7°C11°C15°C
December4°C8°C10°C

Najerilla River: Water Temperature by Location

Najerilla River: Weather Forecast

November 1

° / °
overcast
rain: 0% | wind:

November 2

° / °
overcast
rain: 0% | wind:

November 3

° / °
light drizzle
rain: 8% | wind:

November 4

° / °
overcast
snow: 8% | wind:

November 5

° / °
slight rain showers
rain: 8% | wind:

November 6

° / °
overcast
rain: 8% | wind:

Location & Local Information

Length 99.7 km (62.0 mi)

The Río Najerilla, a tributary of the Ebro that runs through parts of northern Spain including sections of Castile and León, shows marked seasonal changes in water temperature. In winter the river is cold, commonly around 4–8 °C (39–46 °F), while spring brings a steady rise to roughly 8–14 °C (46–57 °F) as snowmelt and rains increase flow. Summer surface temperatures in sheltered pools and slower reaches typically range from about 16–22 °C (61–72 °F), though shallow, sun-warmed shallows can be a degree or two higher and deeper or faster-flowing stretches remain noticeably cooler. In autumn temperatures fall back to roughly 10–16 °C (50–61 °F) as air temperatures drop and flows stabilize.

Swimming in the Río Najerilla is possible in many calmer, accessible spots, but it is not universally recommended everywhere along the river. Local regulations, water-quality measures, variable currents, submerged rocks and sudden depth changes make some sections unsafe, especially after heavy rain or during spring high flows. Cold water shock can be a hazard even in summer in deeper pools. Where villages or informal recreational areas have historically been used for bathing, people often swim, but visitors should observe signage, check recent conditions and water-quality reports, and prefer well-known, sheltered spots rather than fast or unfamiliar stretches.

Nearby Rivers

Frequently Asked Questions

What is the current water temperature in the Najerilla River?
Water Temperature in the Najerilla River today is 13.8°C.
What is the water temperature in the Najerilla River during the summer months?
The water temperature in the Najerilla River in summer fluctuates in the range of 12°C - 26°C.
Is it possible to swim in Najerilla (Spain) and what are the possibilities for this?
Yes — you can swim in some stretches of the Najerilla River, where natural pools and calmer bends (and a few designated recreational spots) are used for bathing during warmer months, but conditions vary with season and rainfall, access may cross private land, and you should check local advice and water quality and take normal safety precautions for currents, depth and slippery rocks.