The big number below is the latest lake water reading from the NASA JPL and UC Davis buoy. Its time tells you how old it is. If it is too old, we show Status unknown. The charts and month table use past data to help you plan a dip.
At the buoy today
Buoy source59.0° F
Water temperature, last 30 days
°F, daily averageSee the numbers
| Day | °F |
|---|---|
| Sep 17 | 62.1 |
| Sep 18 | 62.2 |
| Sep 19 | 62.3 |
| Sep 20 | 62.7 |
| Sep 21 | 62.7 |
| Sep 22 | 62.8 |
| Sep 23 | 63.1 |
| Sep 24 | 62.8 |
| Sep 25 | 62.6 |
| Sep 26 | 62.2 |
| Sep 27 | 62.0 |
| Sep 28 | 61.6 |
| Sep 29 | no reading |
| Sep 30 | no reading |
| Oct 1 | no reading |
| Oct 2 | 61.8 |
| Oct 3 | 62.3 |
| Oct 4 | 62.2 |
| Oct 5 | 62.1 |
| Oct 6 | 62.4 |
| Oct 7 | 62.9 |
| Oct 8 | 62.6 |
| Oct 9 | 62.1 |
| Oct 10 | 61.5 |
| Oct 11 | 60.9 |
| Oct 12 | 60.3 |
| Oct 13 | 59.8 |
| Oct 14 | 59.7 |
| Oct 15 | 59.4 |
| Oct 16 | 58.8 |
Compared with normal
The October average is 57.4°F, from 2016 to 2025. This is the NASA MUR satellite record.
At , the buoy was 1.6 degrees warmer than a normal October.
The buoy and satellite measure the lake in different ways. This gap is a rough guide.
This year, last year and the average
°F, by monthSee the numbers
| Month | 2026 | 2025 | Average 2016 to 2025 |
|---|---|---|---|
| Jan | 55.6 | 51.8 | 50.5 |
| Feb | 55.4 | 52.0 | 51.3 |
| Mar | 55.4 | 52.3 | 52.7 |
| Apr | 55.4 | 54.5 | 54.9 |
| May | 57.0 | 55.9 | 57.0 |
| Jun | 61.6 | 61.7 | 60.1 |
| Jul | 64.7 | 63.7 | 61.1 |
| Aug | 64.2 | 59.2 | 60.5 |
| Sep | 62.9 | 65.2 | 61.2 |
| Oct | 62.9 | 59.9 | 57.4 |
| Nov | 57.5 | 54.3 | |
| Dec | 55.1 | 51.6 |
On this day in past years
October 16, daily averages by town date. Older data comes from NASA MUR satellite history. Live readings come from the water temperature feed.
The same date in past years
°F, daily averageSee the numbers
| Year | °F |
|---|---|
| 2002 | 52.9 |
| 2003 | 49.4 |
| 2004 | 52.8 |
| 2005 | 51.0 |
| 2006 | 57.1 |
| 2007 | 54.2 |
| 2008 | 52.6 |
| 2009 | 55.8 |
| 2010 | 54.9 |
| 2011 | 59.7 |
| 2012 | 56.3 |
| 2013 | 49.3 |
| 2014 | 57.7 |
| 2015 | 60.3 |
| 2016 | 55.0 |
| 2017 | 50.9 |
| 2018 | 55.2 |
| 2019 | 51.2 |
| 2020 | 62.8 |
| 2021 | 56.4 |
| 2022 | 52.9 |
| 2023 | 64.4 |
| 2024 | 61.3 |
| 2025 | 57.7 |
Among years with data, 2023 was warmest at 64.4°F. 2013 was coldest at 49.3°F.
Swim guide by season
These words are our rule of thumb, not safety advice. A monthly average does not tell you today's beach temperature.
| Month | Average °F | Our guide |
|---|---|---|
| January | 50.5 | Very cold. A quick dip. |
| February | 51.3 | Very cold. A quick dip. |
| March | 52.7 | Very cold. A quick dip. |
| April | 54.9 | Very cold. A quick dip. |
| May | 57.0 | Very cold. A quick dip. |
| June | 60.1 | Cold. Short swims. |
| July | 61.1 | Cold. Short swims. |
| August | 60.5 | Cold. Short swims. |
| September | 61.2 | Cold. Short swims. |
| October, this month | 57.4 | Very cold. A quick dip. |
| November | 54.3 | Very cold. A quick dip. |
| December | 51.6 | Very cold. A quick dip. |
NASA MUR monthly averages, 2016 to 2025. History through Oct 8, 2026.
Read the time first
The buoy number is one point in the lake. Use its time, not the time you opened this page. If the live feed is late, we hide the old number. You can still use the buoy source to read its report.
The month chart uses NASA MUR satellite data. That is not the same sensor as the buoy. The table shows the years used for the mean. Use it as a rough guide to the time of year, not a forecast for your swim spot.
Before a swim
The swim words are our rule of thumb. They are not a test of what is safe for you. NWS warns that cold water can cause shock and loss of strength. Read the NWS cold water guide and the lake forecast before you go.
More lake pages
Questions people ask
What is Lake Tahoe's water temperature today?
What is Lake Tahoe water temperature by month?
How cold is Lake Tahoe?
Can you swim in Lake Tahoe today?
Is Lake Tahoe warmer than normal today?
How to read this page
Each row shows the time of its own data. Where the numbers come from is in "How we know" at the end of the page.
Feeds on this page
- Lake Tahoe water temperaturelimit 6 h
- Lake Tahoe level (USGS 10337000)limit 2 h