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Courtright Reservoir — Current Water Temperature, Annual Trends and Forecast

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

Courtright Reservoir, United States
Courtright Reservoir, United States © By US Forest Service, Public domain

Current Water Temperature

12.9°C
Today
12.4°C
Yesterday
13.8°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 Courtright Reservoir today is 12.9°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear. 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 12 to October 13

Table of Daily Sea Temperature Data

Date Current Average Forecast
OCT 513.8°C17.0°C
OCT 613.6°C17.0°C
OCT 713.9°C17.0°C
OCT 813.2°C17.0°C
OCT 913.0°C17.0°C
OCT 1013.0°C17.0°C
OCT 1112.4°C17.0°C
OCT 1212.9°C17.0°C
OCT 1317.0°C13.1°C
OCT 1417.0°C13.3°C
OCT 1517.0°C13.5°C
OCT 1617.0°C13.7°C
OCT 1717.0°C13.9°C
OCT 1817.0°C14.1°C
OCT 1917.0°C14.3°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°C10°C16°C
February4°C10°C15°C
March4°C9°C14°C
April4°C10°C16°C
May6°C12°C17°C
June11°C14°C17°C
July16°C20°C24°C
August18°C21°C23°C
September16°C18°C21°C
October13°C17°C21°C
November6°C13°C20°C
December4°C8°C11°C

Courtright Reservoir: Water Temperature by Location

Courtright Reservoir: Weather Forecast

October 13

° / °
overcast
snow: 47% | wind:

October 14

° / °
clear sky
rain: 1% | wind:

October 15

° / °
overcast
rain: 0% | wind:

October 16

° / °
clear sky
rain: 0% | wind:

October 17

° / °
clear sky
rain: 0% | wind:

Location & Local Information

Courtright Reservoir sits at high elevation and is fed largely by snowmelt, so water temperatures stay relatively cold throughout the year. In late spring, as snowpack is melting, surface temperatures commonly range from about 33–45°F (0.5–7°C). By mid to late summer the warmest surface readings may reach roughly 50–65°F (10–18°C) on calm, sunny days, though deeper water remains much colder. In early fall temperatures typically fall back to about 40–55°F (4–13°C) as cooling and inflow increase. In winter the reservoir can approach freezing conditions, often forming ice at the edges, with surface temperatures near 32–35°F (0–2°C) when ice is present.

Swimming is not formally prohibited in many forest reservoirs, but at Courtright it is limited in practice by environmental and safety factors. The cold temperatures, sudden wind and weather changes, remote location, lack of lifeguards, and the hazard of cold-water shock and rapid onset hypothermia make unaccompanied or prolonged swims risky. Additionally, reservoir operations and drop in water level can create underwater hazards. Some experienced visitors use wetsuits or short, controlled dips in summer, but most authorities recommend treating Courtright as a place for boating and scenic enjoyment rather than casual swimming.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Courtright Reservoir?
Water Temperature in Courtright Reservoir today is 12.9°C.
What is the water temperature in Courtright Reservoir during the summer months?
The water temperature in Courtright Reservoir in summer fluctuates in the range of 11°C - 24°C.
Is it possible to swim in Courtright Reservoir and what are the possibilities for this?
Yes, swimming in Courtright Reservoir in California is possible. For safety, it's recommended you visit designated areas and only swim during the daylight hours when temperatures are warm.