Temperature:

Your Favorite Locations:

Your favorites list is empty.

Aa River — Current Water Temperature, Annual Trends and Forecast

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

Slack River, France
Slack River, France © Par L’auteur n’a pas pu être identifié automatiquement, GFDL

Current Water Temperature

11.0°C
Today
11.4°C
Yesterday
11.8°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 Aa River today is 11°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

❌ As of today, the minimum water temperature ranges from 50°F (10°C) to 54°F (12°C). The water is slightly warmer, but still cool for most people. Swimming in such conditions is possible, but for most people, the time spent in the water should be limited to avoid hypothermia. Even experienced swimmers may feel discomfort if they stay in the water for too long. To improve comfort and safety, a wetsuit can be used. 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 30

Table of Daily Sea Temperature Data

Date Current Average Forecast
OCT 2311.8°C9.0°C
OCT 2411.9°C9.0°C
OCT 2511.6°C9.0°C
OCT 2611.5°C9.0°C
OCT 2711.3°C9.0°C
OCT 2811.6°C9.0°C
OCT 2911.4°C9.0°C
OCT 3011.1°C9.0°C
OCT 319.0°C10.8°C
NOV 17.7°C10.7°C
NOV 27.7°C10.5°C
NOV 37.7°C10.3°C
NOV 47.7°C10.2°C
NOV 57.7°C10.0°C
NOV 67.7°C9.8°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
January3°C7°C9°C
February3°C7°C9°C
March4°C8°C10°C
April6°C9°C12°C
May6°C11°C17°C
June12°C17°C21°C
July13°C18°C22°C
August14°C18°C23°C
September10°C15°C19°C
October6°C9°C12°C
November4°C8°C12°C
December3°C7°C9°C

Aa River: Water Temperature by Location

Aa River: Weather Forecast

October 31

° / °
fog
rain: 0% | wind:

November 1

° / °
overcast
rain: 11% | wind:

November 2

° / °
slight rain showers
rain: 25% | wind:

November 3

° / °
slight rain showers
rain: 13% | wind:

November 4

° / °
overcast
rain: 3% | wind:

Location & Local Information

Source:
• location Bourthes, Pas-de-Calais
Mouth:
• location North Sea
• coordinates 51°0′21″N 2°6′16″E
Length 93 km (58 mi)
Basin size 1,215 km2 (469 sq mi)

The River Aa in northern France, which stretches for about 93 kilometers from the Artois Hills to the North Sea, is typically cool and fresh, making it a suitable spot for swimming in warmer months. Its water temperature can fluctuate depending on the season, with summer being the most ideal for outdoor swimming. While the river is not famous for dedicated swimming areas, the natural surroundings along the river’s route can provide peaceful and refreshing swim opportunities, particularly in areas like Saint-Omer​.

However, it's essential to be cautious when swimming in the Aa, as certain areas are affected by industrial discharge, which may influence water quality. It’s advisable to check local reports for water quality before heading out. While the river isn't widely advertised for its swimming spots, people can still enjoy it in some quiet areas where the water quality meets health standards. For those who prefer supervised conditions, it's worth considering nearby lakes and ponds that offer more reliable swimming environments.

Nearby Rivers

Frequently Asked Questions

What is the current water temperature in the Aa River?
Water Temperature in the Aa River today is 11°C.
What is the water temperature in the Aa River during the summer months?
The water temperature in the Aa River in summer fluctuates in the range of 12°C - 23°C.
Is it possible to swim in the Aa River?
Yes, it is technically possible to swim in the Aa River. However, local regulations and safety considerations may impact whether it's advisable or permitted.