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AlaskaNatural lake, 2,270 acres, Kodiak Island Borough

Spiridon Lake wind forecast

Shoreline: USGS National Hydrography Dataset

7-day outlook

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

  1. MonOct 26

    14-19kt

    SW, gusts 23

    High 49°F, rain 15%

    Use caution
  2. TueOct 27

    4-7kt

    SW, gusts 10

    High 47°F, rain 3%

    Good
  3. WedOct 28

    6-11kt

    SSE, gusts 15

    High 48°F, rain 79%

    Good
  4. ThuOct 29

    4-9kt

    SSE, gusts 16

    High 50°F, rain 90%

    Good
  5. FriOct 30

    10-11kt

    SSW, gusts 21

    High 46°F, rain 86%

    Use caution
  6. SatOct 31

    7-8kt

    SSW, gusts 16

    High 43°F, rain 42%

    Good
  7. SunNov 1

    5kt

    WSW, gusts 10

    High 41°F, rain 20%

    Good

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 Spiridon

Over the next 7 days on Spiridon Lake, the windiest stretch looks like Monday, with gusts to about 23 kt. Sunday is the calmest day in the outlook, topping out near 5 kt.

Wednesday is the pick for sailing, and Sunday 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.

On a lake the size of Spiridon, waves stay modest, but nearby hills, trees and buildings bend the wind. Expect shifts and puffs, especially close to shore, and treat the forecast speed as an average across open water.

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.

Spiridon Lake forecast questions

What is the wind forecast for Spiridon Lake this weekend?

In the National Weather Service forecast from October 25: Saturday: SSW wind 7 to 8 kt, gusts to 16 kt, high near 43°F. Sunday: WSW wind 5 kt, gusts to 10 kt, high near 41°F. The live cards above always show the latest update.

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

Based on the National Weather Service forecast from October 25, Wednesday looks best, with SSE wind around 6 to 11 kt and gusts near 15 kt. Forecasts beyond three days shift, so check the live day cards above and look again the night before.

Where does the Spiridon 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 Spiridon is blown out, these are the closest alternatives. Tap through for their wind forecasts.