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Charles River
Charles River Current Water Temperature and Forecast
On this page, you will find comprehensive information about the water temperature in Charles River, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Water Temperature in Charles River
4.5°C
TODAY
2.9°C
YESTERDAY
4.8°C
A WEEK AGO
As of today, the minimum water temperature in the Charles River ranges less than 41°F (5°C). Such water is extremely cold and not recommended for swimming without proper preparation. In these conditions, the risk of hypothermia is very high, and prolonged exposure to the water can be hazardous to your health. If you decide to swim, it is important to have the appropriate gear, such as a wetsuit. Typically, only experienced swimmers or those who practice winter swimming venture into such waters.
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.
Analysis, Historical Data, and Forecast of Water Temperature
Water Temperature Chart for Charles River Over the Last 30 Days
Today the water temperature in Charles River is lower than the same day in previous years. The water temperature range here in February is from 3°C to 9°C. The water temperature has decreased over the past 7 days but has increased over the past month.
The forecasted water temperature values for Charles River are presented in the table below.
The actual water temperature values near the shore may differ by a few degrees from the stated values. For the development of the forecast, we use our own mathematical model that takes into account the current water temperature changes, historical data, and key weather trends, including wind strength and direction, and air temperature in each specific region.
Daily Water Temperature Chart
| Date | Current | Average | Forecast |
|---|---|---|---|
| Feb 15 | 4.8°C | 5.3°C | |
| Feb 16 | 4.6°C | 5.3°C | |
| Feb 17 | 4.6°C | 5.3°C | |
| Feb 18 | 3.1°C | 5.3°C | |
| Feb 19 | 3.1°C | 5.3°C | |
| Feb 20 | 2.9°C | 5.3°C | |
| Feb 21 | 2.9°C | 5.3°C | |
| Feb 22 | 4.5°C | 5.3°C | |
| Feb 23 | 5.3°C | 4.6°C | |
| Feb 24 | 5.3°C | 4.6°C | |
| Feb 25 | 5.3°C | 4.6°C | |
| Feb 26 | 5.3°C | 4.6°C | |
| Feb 27 | 5.3°C | 4.6°C | |
| Feb 28 | 5.3°C | 4.6°C | |
| Mar 1 | 6.7°C | 4.7°C | |
| Mar 2 | 6.7°C | 4.8°C |
Water Temperature Ranges in Charles River by Month
January
| Minimum | Average | Maximum |
|---|---|---|
| 3°C | 4.2°C | 9°C |
February
| Minimum | Average | Maximum |
|---|---|---|
| 3°C | 5.3°C | 9°C |
March
| Minimum | Average | Maximum |
|---|---|---|
| 3°C | 6.7°C | 11°C |
April
| Minimum | Average | Maximum |
|---|---|---|
| 5°C | 9.9°C | 16°C |
May
| Minimum | Average | Maximum |
|---|---|---|
| 8°C | 13.4°C | 21°C |
June
| Minimum | Average | Maximum |
|---|---|---|
| 14°C | 18.5°C | 22°C |
July
| Minimum | Average | Maximum |
|---|---|---|
| 17°C | 20°C | 24°C |
August
| Minimum | Average | Maximum |
|---|---|---|
| 17°C | 21.4°C | 23°C |
September
| Minimum | Average | Maximum |
|---|---|---|
| 11°C | 17.6°C | 19°C |
October
| Minimum | Average | Maximum |
|---|---|---|
| 8°C | 13.3°C | 16°C |
November
| Minimum | Average | Maximum |
|---|---|---|
| 3°C | 8.1°C | 16°C |
December
| Minimum | Average | Maximum |
|---|---|---|
| 3°C | 4.7°C | 8°C |
Monthly Water Temperature Histogram for Charles River
Water Temperature in Cities and Towns on Charles River
Known Beaches in the Area of Charles River?
Membership Beach
Membership Beach is a 1-stars sandy beach, located in a 3 km (2 miles) radius of Charles River.
Morses Pond Beach
Morses Pond Beach is a 3-stars sandy beach, located in a 6 km (4 miles) radius of Charles River. There are lifeguards on the beach. There is parking. There are restrooms. Morses Pond Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish.
Havey Beach
Havey Beach is a 1-stars sandy beach, located in a 8 km (5 miles) radius of Charles River.
Crystal Lake Beach
Crystal Lake Beach is a 3-stars sandy beach, located in a 10 km (6 miles) radius of Charles River. There are lifeguards on the beach. There is parking.
Harvey Beach
Harvey Beach is a 1-stars sandy beach, located in a 10 km (6 miles) radius of Charles River.
Charles River Weather
FEBRUARY 23
-5°C / 3°C
overcastrain: 1% | wind: 17 km/h
FEBRUARY 24
-3°C / 7°C
overcastrain: 5% | wind: 11 km/h
FEBRUARY 25
1°C / 9°C
light drizzlerain: 20% | wind: 17 km/h
FEBRUARY 26
-1°C / 8°C
overcastrain: 23% | wind: 11 km/h
FEBRUARY 27
2°C / 14°C
light drizzlerain: 32% | wind: 22 km/h
Water Temperature in Charles River: General Trends and Swimming Opportunities
Source Echo Lake
• location Hopkinton, Massachusetts, United States
• elevation 350 ft (110 m)
Mouth Boston Harbor
• location Boston, Massachusetts, United States
• elevation 0 ft (0 m)
Length 80 mi (130 km)
The Charles River, flowing through eastern Massachusetts, is a historically significant and picturesque waterway stretching over 80 miles from Hopkinton to Boston Harbor. While it serves as a vital cultural and recreational hub, its water quality and suitability for swimming have been subjects of much effort and improvement over the years. Thanks to rigorous environmental initiatives, the river is now considered safe for swimming on certain days, particularly during organized events like the Charles River Swimming Club’s annual races. However, swimming is not universally permitted and depends on specific locations and water quality conditions.
Water temperature in the Charles River varies seasonally, making it most inviting during the summer months, typically ranging from 68°F to 75°F (20°C to 24°C) in July and August. These temperatures align with comfortable swimming conditions, though the experience may still depend on the day's weather and water cleanliness. Outside the summer, the river cools significantly, especially in the winter, when temperatures can drop near freezing, rendering it unsuitable for swimming. While casual swimming opportunities remain limited due to safety and environmental concerns, the Charles River remains an iconic destination for kayaking, rowing, and enjoying waterfront views.
Geographical Location of Charles River
Nearby Rivers
Frequently Asked Questions About Charles River and its Water Temperatures
What is the current water temperature in Charles River?
The water temperature today in Charles River ranges from 37°F (2.9°C) to 41°F (5.0°C).
What is the water temperature in Charles River during the summer months?
The average water temperature in Charles River during the summer months is typically between 65°F to 71°F (19°C to 21°C), and it can reach up to 75°F (24°C) at its warmest. However, in some years, the temperature may exceed this range.
What is the water temperature in Charles River in May?
The average water temperature in Charles River in May ranges from 46°F to 70°F (8°C to 21°C).
What is the water temperature in Charles River in September?
The average water temperature in Charles River in September is typically between 52°F to 66°F (11°C to 19°C).
Where does Charles River flow?
Charles River flows through United States (Massachusetts).
Is it possible to swim in the Charles River?
Yes, it is possible to swim in the Charles River. However, local authorities advise checking current water quality reports for safety purposes.
What major cities are located on Charles River?
Cities along the course of Charles River include Cambridge (Massachusetts), Dedham (Massachusetts).