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Satellite view of Whittier Narrows Reservoir

Whittier Narrows Reservoir

Reservoir

Great conditions today

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Current water conditions

Water temp
68°F
20°C
Cool water — ease in carefully. Cool enough to cause cold-water shock on a sudden entry. Get in gradually, let your breathing settle, and keep an eye on weaker swimmers.

Live data from NOAA buoy 46256 (23.1 mi away), as of Aug 21, 3:26 AM UTC. Conditions are for general information only and can change quickly — always judge the water in person and follow posted advisories before swimming.

Weather at Whittier Narrows Reservoir

H: 97° L: 66°
Overcast
Overcast
76°
|
Feels like 79°
Precipitation
8%
Humidity
66%
Wind
4 mph
UV Index
0
Water Conditions:
🏊Perfect for swimming
12 AM
Clear
70°
3 AM
Clear
68°
6 AM
Mist
66°
9 AM
Cloudy
76°
12 PM
Overcast
94°
3 PM
Cloudy
96°
6 PM
Sunny
90°
9 PM
Overcast
76°

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Frequently asked questions

Where is Whittier Narrows Reservoir?
Whittier Narrows Reservoir is a reservoir in California.
What is the water temperature at Whittier Narrows Reservoir?
As of August 21, 2026, the water temperature at Whittier Narrows Reservoir in California is 68°F (20°C), measured by NOAA buoy 46256, 23.1 miles away.
Can you swim at Whittier Narrows Reservoir?
There is no fixed answer for Whittier Narrows Reservoir: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Whittier Narrows Reservoir in California. Check current water conditions before you go, and follow posted signs and local guidance.

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Best Times to Visit

Right Now
Perfect conditions right now!
🏞️ Lakes Tips:
  • Check for boat launch facilities and fees
  • Obtain required fishing licenses before arrival
  • Be aware of lake-specific regulations and restrictions
  • Monitor water quality reports before swimming
Best Seasons:
☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

California

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