Alaska Water Temperatures
Current lake & river temperatures in Alaska — updated daily from USGS sensors.
Alaska — Ranked by Temperature
67 with data| # | Water Body | °F | °C | Condition | 🏊 | Date |
|---|---|---|---|---|---|---|
| 1 | Hatchery C At Forest Svc Rd 23 Nr Coffman Cove Ak Lake | 68° | 20° | 🌤️ Comfortable | ⚠️ Brisk | Jul 23 |
| 2 | Yukon R At Pilot Station Ak Lake | 61.3° | 16.3° | 🌊 Cool | 🚫 Cold | Jul 27 |
| 3 | Yukon R At Galena Ak Lake | 61.2° | 16.2° | 🌊 Cool | 🚫 Cold | Jul 27 |
| 4 | Leask Creek At Shelter Cove Nr Ketchikan Ak River | 60.1° | 15.6° | 🌊 Cool | 🚫 Cold | Jul 27 |
| 5 | Gulkana R At Sourdough Ak Lake | 58.3° | 14.6° | 🌊 Cool | 🚫 Cold | Jul 27 |
| 6 | Staney C Nr Klawock Ak Lake | 57.6° | 14.2° | 🌊 Cool | 🚫 Cold | Jul 27 |
| 7 | Situk R Nr Yakutat Ak Lake | 56.8° | 13.8° | 🌊 Cool | 🚫 Cold | Jul 27 |
| 8 | Tanana R At Nenana Ak Lake | 56.8° | 13.8° | 🌊 Cool | 🚫 Cold | Jul 27 |
| 9 | Twelvemile C Nr Petersburg Ak Lake | 55.8° | 13.2° | 🌊 Cool | 🚫 Cold | Jul 27 |
| 10 | Birch C Nr Circle Ak Lake | 55° | 12.8° | 🌊 Cool | 🚫 Cold | Jul 27 |
| 11 | Nuyakuk R Nr Dillingham Ak Lake | 54.7° | 12.6° | ❄️ Cold | ⛔ Very cold | Jul 27 |
| 12 | Kuskokwim R At Tuluksak Ak Lake | 52.7° | 11.5° | ❄️ Cold | ⛔ Very cold | Jul 27 |
| 13 | Salcha R Nr Salchaket Ak Lake | 52.3° | 11.3° | ❄️ Cold | ⛔ Very cold | Jul 27 |
| 14 | Harris R 1.2 Mi Ab Mouth Nr Hollis Ak Lake | 52.3° | 11.3° | ❄️ Cold | ⛔ Very cold | Jul 27 |
| 15 | Red Cloud R Tr Nr Kodiak Ak Lake | 51.4° | 10.8° | ❄️ Cold | ⛔ Very cold | Jul 27 |
| 16 | Kvichak R At Igiugig Ak Lake | 51.3° | 10.7° | ❄️ Cold | ⛔ Very cold | Jul 27 |
| 17 | Sf Koyukuk R Nr Coldfoot Ak Lake | 51.3° | 10.7° | ❄️ Cold | ⛔ Very cold | Jul 26 |
| 18 | Talkeetna R Nr Talkeetna Ak Lake | 50.9° | 10.5° | ❄️ Cold | ⛔ Very cold | Jul 27 |
| 19 | Kenai R At Soldotna Ak Lake | 50.9° | 10.5° | ❄️ Cold | ⛔ Very cold | Jul 27 |
| 20 | Wulik R Bl Tutak C Nr Kivalina Ak Lake | 49.8° | 9.9° | ❄️ Cold | ⛔ Very cold | Jul 27 |
| 21 | Willow C Nr Willow Ak Lake | 49.6° | 9.8° | ❄️ Cold | ⛔ Very cold | Jul 27 |
| 22 | Campbell C Nr Spenard Ak Lake | 49.5° | 9.7° | ❄️ Cold | ⛔ Very cold | Jul 26 |
| 23 | Iliamna R Nr Pedro Bay Ak Lake | 49.5° | 9.7° | ❄️ Cold | ⛔ Very cold | Jul 27 |
| 24 | Niukluk R Ab Melsing C At Council Ak Lake | 49.3° | 9.6° | ❄️ Cold | ⛔ Very cold | Jul 27 |
| 25 | Flathead River At Flathead British Columbia River | 49.1° | 9.5° | ❄️ Cold | ⛔ Very cold | Sep 29 |
More Alaska Resources
❓ Alaska Water Temperature FAQ
What is the warmest lake in Alaska today?
Based on our latest USGS data, Hatchery C At Forest Svc Rd 23 Nr Coffman Cove Ak is currently the warmest water body in Alaska at 68°F.
Which Alaska lakes are good for swimming right now?
Lakes with water temperatures above 72°F are generally comfortable for swimming. Currently, Alaska's average water temperature is 47.7°F — check individual lakes above for specific conditions.
What is the best water temperature for fishing in Alaska?
The optimal temperature range depends on your target species. For bass fishing, look for water bodies between 65–75°F. For trout, target the coldest water bodies in Alaska — typically 50–65°F. Use the table above to identify which lakes are in the ideal range for your target species.
🔬 Data Methodology & Sources
Water temperature readings on this site are collected from USGS (United States Geological Survey) monitoring stations installed at lakes, rivers, and reservoirs across the country. Sensors measure water surface temperature in Celsius, which is converted to Fahrenheit for display. Data is retrieved and stored daily. Temperatures shown reflect the most recent available sensor reading for each water body, typically from the past 1–30 days depending on station reporting frequency.
⚠️ Water temperatures can vary significantly across a water body due to depth, currents, and time of day. Sensor readings represent conditions at the monitoring station location. Always exercise caution when swimming and consult local authorities for official safety advisories.