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Ramsey Lake — Current Water Temperature, Annual Trends and Forecast

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

Lake Minnetonka, United States
Lake Minnetonka, United States © By Tyler Vigen, CC BY-SA 4.0

Current Water Temperature

20.3°C
Today
19.3°C
Yesterday
21.6°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 Ramsey Lake today is 20.3°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

From August 21 to September 21

Table of Daily Sea Temperature Data

Date Current Average Forecast
SEP 1421.6°C20.8°C
SEP 1520.6°C20.8°C
SEP 1620.4°C20.8°C
SEP 1719.3°C20.8°C
SEP 1818.8°C20.8°C
SEP 1919.3°C20.8°C
SEP 2019.6°C20.8°C
SEP 2220.8°C20.3°C
SEP 2320.8°C20.4°C
SEP 2420.8°C20.4°C
SEP 2520.8°C20.4°C
SEP 2620.8°C20.4°C
SEP 2720.8°C20.5°C
SEP 2820.8°C20.5°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
January0°C1°C4°C
February0°C2°C4°C
March0°C2°C4°C
April2°C7°C12°C
May9°C15°C22°C
June16°C22°C27°C
July21°C25°C29°C
August21°C25°C28°C
September18°C21°C24°C
October6°C13°C19°C
November3°C7°C11°C
December1°C3°C6°C

Ramsey Lake: Water Temperature by Location

Ramsey Lake: Weather Forecast

September 22

° / °
overcast
rain: 1% | wind:

September 23

° / °
overcast
rain: 0% | wind:

September 24

° / °
overcast
rain: 30% | wind:

September 25

° / °
light drizzle
rain: 8% | wind:

Location & Local Information

Ramsey Lake in Minnesota follows the familiar seasonal pattern of lakes in the region. In spring the surface water is cold, commonly in the mid-30s to mid-50s °F (about 2–13 °C) as snowmelt and cool air temperatures keep the lake chilled. By early summer surface temperatures typically rise into the 60s °F (around 16–21 °C), and peak in July and August when mid‑summer surface readings are often in the 70s to low 80s °F (about 21–28 °C) on warm, calm days. As autumn arrives the water cools again into the 50s and 40s °F (10–4 °C) before freezing; winter conditions bring ice cover and surface temperatures at or near the freezing point, about 32 °F (0 °C).

Swimming at Ramsey Lake is possible where public access points or informal shorelines allow it, and many people swim in summer when surface temperatures are comfortable. Whether swimming is formally allowed can depend on local rules, posted signs, and periodic advisories; authorities may restrict swimming because of water‑quality issues such as algal blooms, high bacteria counts, excessive vegetation, or for safety reasons like lack of lifeguards or hazardous conditions. In winter, ice safety concerns make swimming inappropriate except for organized, supervised ice‑swim events with proper precautions.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Ramsey Lake?
Water Temperature in Ramsey Lake today is 20.3°C.
What is the water temperature in Ramsey Lake during the summer months?
The water temperature in Ramsey Lake in summer fluctuates in the range of 16°C - 29°C.
Is it possible to swim in Ramsey Lake and what are the possibilities for this?
Yes, swimming is possible in Ramsey Lake, Minnesota. However, the availability and safety can vary, and it's recommended to check local regulations or contact local rangers for any restrictions or guidelines.