Main River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Main River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Main River today is 46°F.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature ranges from 41°F (5°C) to 47°F (8°C). This water temperature is still quite low, and swimming in such conditions may only be comfortable for hardened individuals. It is recommended to limit the time spent in the water to avoid hypothermia. For those not accustomed to cold water, it is better to refrain from swimming. However, if you decide to enter the water, it is advisable to wear a warm wetsuit for protection against the cold. 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 |
|---|---|---|---|
| MAR 9 | 45°F | 43°F | |
| MAR 10 | 46°F | 43°F | |
| MAR 11 | 46°F | 43°F | |
| MAR 12 | 47°F | 43°F | |
| MAR 13 | 47°F | 43°F | |
| MAR 14 | 46°F | 43°F | |
| MAR 15 | 47°F | 43°F | |
| MAR 16 | 46°F | 43°F | |
| MAR 17 | 43°F | 46°F | |
| MAR 18 | 43°F | 46°F | |
| MAR 19 | 43°F | 46°F | |
| MAR 20 | 43°F | 45°F | |
| MAR 21 | 43°F | 45°F | |
| MAR 22 | 43°F | 45°F | |
| MAR 23 | 43°F | 45°F |
* 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 | 34°F | 39°F | 43°F |
| February | 32°F | 38°F | 45°F |
| March | 37°F | 43°F | 48°F |
| April | 48°F | 54°F | 59°F |
| May | 55°F | 62°F | 68°F |
| June | 61°F | 69°F | 77°F |
| July | 64°F | 73°F | 82°F |
| August | 64°F | 72°F | 79°F |
| September | 57°F | 65°F | 73°F |
| October | 48°F | 54°F | 59°F |
| November | 37°F | 44°F | 50°F |
| December | 36°F | 40°F | 45°F |
Main River: Water Temperature by Location
Main River: Weather Forecast
March 17
March 18
March 19
March 20
March 21
Location & Local Information
Source:
• location Upper Franconia
• coordinates 50°5′11″N 11°23′54″E
• elevation 895 metres (at Weissmainquelle)
Mouth:
• location Rhine
• coordinates 49°59′40″N 8°17′36″E
• elevation 83 m (272 ft)
Length 524.9 km (326.2 mi)
The Main River is one of the major rivers in Germany, flowing primarily through the state of Bavaria and Hesse. It serves as an important tributary of the Rhine River and passes through the city of Frankfurt, among other key locations. The water temperature in the Main River varies greatly throughout the year. During the colder months, from November to March, the temperature can drop as low as 4°C to 6°C, making swimming conditions uncomfortable and potentially dangerous. However, in the warmer summer months, particularly from June to August, the water temperature can reach up to 18°C to 22°C, which is more suitable for swimming.
Swimming in the Main River is possible, especially in the warmer months when water temperatures rise and the flow is more stable. There are designated swimming areas near various cities, including Frankfurt, where people can safely enjoy the water. The river is wide and has many spots where the current is gentle enough for recreational swimming. However, the Main River also has some fast-flowing sections and areas with high boat traffic, so it's important to choose the right spots for swimming and always check water quality reports. While the water quality is generally good in many parts of the river, swimmers should be aware of any local advisories or potential pollution.