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AlaskaNatural lake, 59,305 acres, Kenai Peninsula Borough

Tustumena Lake wind forecast

Tustumena Lake, Alaska
Photo: Beeblebrox, CC BY-SA 4.0

7-day outlook

Daylight hours, 8am to 7pm local time. Wind in knots.

  1. MonOct 26

    7-13kt

    SSE, gusts 20

    High 47°F, rain 14%

    Good
  2. TueOct 27

    1-3kt

    N, gusts 4

    High 43°F, rain 0%

    Light wind
  3. WedOct 28

    0-2kt

    ENE, gusts 2

    High 47°F, rain 60%

    Light wind
  4. ThuOct 29

    2-5kt

    E, gusts 10

    High 48°F, rain 65%

    Use caution
  5. FriOct 30

    11-12kt

    SSE, gusts 19

    High 48°F, rain 79%

    Good
  6. SatOct 31

    4-8kt

    SE, gusts 10

    High 45°F, rain 35%

    Good
  7. SunNov 1

    3kt

    ENE, gusts 6

    High 43°F, rain 31%

    Light wind

Hour by hour, next 3 days

Wind and gusts0 to 30+ ktScoreGood, caution, stay ashoreNightBest windowArrows point where the wind blows to.

This week on Tustumena

Over the next 7 days on Tustumena Lake, the windiest stretch looks like Monday, with gusts to about 20 kt. Wednesday is the calmest day in the outlook, topping out near 2 kt.

Monday is the pick for sailing, and Tuesday looks best for kayaks and paddleboards. Mornings are usually calmer than afternoons, so check the hourly strip for the exact window.

Reading a lake wind forecast

Sustained wind is the average over a couple of minutes; gusts are the short peaks. On inland water the gap between the two matters as much as the average. A steady 12 kt is a pleasant sail, while 8 kt gusting 20 kt knocks small boats flat and tires out paddlers.

Tustumena Lake is large enough for wind to build real waves. When the forecast direction lines up with the long open stretches of the lake, expect bigger chop than the wind speed alone suggests, and plan routes that keep you near a sheltered shore on the way back.

The National Weather Service forecast covers a 2.5 km grid, so local effects like a sea breeze off a big lake, a cold front or afternoon thunderstorms can arrive earlier or stronger than shown. Check the forecast again on the morning you go, and keep an eye on small craft advisories.

Tustumena Lake forecast questions

What is the wind forecast for Tustumena Lake this weekend?

In the National Weather Service forecast from October 25: Saturday: SE wind 4 to 8 kt, gusts to 10 kt, high near 45°F. Sunday: ENE wind 3 kt, gusts to 6 kt, high near 43°F. The live cards above always show the latest update.

When is the best day to sail on Tustumena Lake this week?

Based on the National Weather Service forecast from October 25, Monday looks best, with SSE wind around 7 to 13 kt and gusts near 20 kt. Forecasts beyond three days shift, so check the live day cards above and look again the night before.

Where does the Tustumena Lake wind forecast come from?

From the National Weather Service gridded forecast for the 2.5 km cell over the lake. It is the same forecast local NWS offices use, updated several times a day. We convert wind to knots and add our own go or no-go call for each activity.

What wind is too strong for a kayak or paddleboard?

We flag paddling as risky once sustained wind passes about 8 kt or gusts pass 12 kt, and advise staying ashore above 12 kt sustained or 18 kt gusts. Offshore wind is the most dangerous because it pushes you away from the launch.

Nearby lakes

If Tustumena is blown out, these are the closest alternatives. Tap through for their wind forecasts.