Lake Arenal – Tilarán wind forecast

The forecast for Lake Arenal – Tilarán, hour by hour for the next 7 days, from the weather models riders know from Windy.

Open the 7-day forecastWind and gusts from every model side by side, hour by hour, for the next 7 days.

Updated November 2026 · weather data 2022–2026

Forecast models

  • Wind and gusts from ECMWF 9 km, ICON 13 km, GFS 22 km and Météo-France ARPEGE 25 km side by side, so you see at once where the models agree.
  • Local: the finest regional model with data for this spot, normally Environment Canada RDPS 10 km, as far as its run reaches (2 to 4 days).
  • On wide screens also ECMWF AIFS (AI), GEM 15 km, JMA 55 km and CMA 25 km.
  • Also rain, clouds and air temperature.
Open the 7-day forecast →

Forecast data: Open-Meteo.

Best time to go

The best time to kitesurf at Lake Arenal – Tilarán is January–February, with about 27 windy days a month (15+ knots).

Windy days per month (15+ knots)
Lake Arenal – Tilarán in November →Lake Arenal – Tilarán: Best time to go →

Questions

How far ahead does the forecast for Lake Arenal – Tilarán go?

7 days, hour by hour (or every 3 hours). Météo-France runs about 4 days and the local high-resolution models 2 to 4 days, so their columns end earlier.

Which weather models does the forecast use?

ECMWF 9 km, ICON 13 km, GFS 22 km and Météo-France ARPEGE 25 km side by side, plus the finest regional model where one covers the spot. Where the models agree, the forecast is more reliable.

When is the best time to go kitesurfing, wingfoiling, windsurfing & parawing at Lake Arenal – Tilarán?

The best time to kitesurf at Lake Arenal – Tilarán is January–February, with about 27 windy days a month (15+ knots).