Passaic River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Passaic River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Passaic River today is 24.7°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 75°F (23°C) to 79°F (26°C). This is a very comfortable temperature for swimming, and many people can enjoy prolonged stays in the water without feeling cold. The water is pleasantly warm, making it ideal for relaxation and water sports. This temperature range is particularly popular among tourists, as it combines comfort and safety for health. 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 |
|---|---|---|---|
| JUL 14 | 22.3°C | 21.6°C | |
| JUL 15 | 24.4°C | 21.6°C | |
| JUL 16 | 26.1°C | 21.6°C | |
| JUL 17 | 26.1°C | 21.6°C | |
| JUL 18 | 24.4°C | 21.6°C | |
| JUL 19 | 24.2°C | 21.6°C | |
| JUL 20 | 24.3°C | 21.6°C | |
| JUL 21 | 24.0°C | 21.6°C | |
| JUL 22 | 21.6°C | 24.5°C | |
| JUL 23 | 21.6°C | 24.4°C | |
| JUL 24 | 21.6°C | 24.2°C | |
| JUL 25 | 21.6°C | 24.1°C | |
| JUL 26 | 21.6°C | 23.9°C | |
| JUL 27 | 21.6°C | 23.8°C | |
| JUL 28 | 21.6°C | 23.6°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 |
|---|---|---|---|
| January | 0°C | 5°C | 9°C |
| February | 0°C | 5°C | 9°C |
| March | 1°C | 6°C | 11°C |
| April | 5°C | 12°C | 18°C |
| May | 8°C | 13°C | 21°C |
| June | 14°C | 19°C | 23°C |
| July | 17°C | 22°C | 27°C |
| August | 17°C | 22°C | 27°C |
| September | 11°C | 17°C | 23°C |
| October | 8°C | 15°C | 22°C |
| November | 3°C | 8°C | 16°C |
| December | 1°C | 5°C | 8°C |
Passaic River: Water Temperature by Location
Passaic River: Weather Forecast
July 22
July 23
July 24
July 25
Location & Local Information
Source Unknown Pond
• location: Mendham
• elevation 540 ft (160 m)
Mouth Newark Bay
• location Newark
• elevation 0 ft (0 m)
Length 80 mi (130 km)
The Passaic River, flowing through northern New Jersey, is a significant waterway with a history deeply tied to the region’s industrial development. Water temperatures in the Passaic River vary throughout the year, typically ranging from the mid-30s°F (around 1-3°C) in the winter to the 70s°F (21-25°C) during the summer. However, due to its urban surroundings, water conditions can be influenced by runoff and other environmental factors.
Swimming in the Passaic River is generally not recommended, primarily due to water quality concerns stemming from industrial pollution and contamination over decades. Efforts are ongoing to clean and restore parts of the river, but it is still more suited for activities such as boating, kayaking, and fishing in specific areas where conditions are safe. The river holds scenic spots, particularly away from densely urbanized zones, offering opportunities to enjoy its natural beauty from the shore or by watercraft rather than direct water immersion.