Weather Window Planner

Day & Event Planner

Pick your city and activity to calculate the optimal 3-hour windows over the next 7 days. Every window is scored from Open-Meteo hourly forecasts with the fixed rules listed below.

Top Windows: Santiago, Chile

Activity: Outdoor Event • Local timezone: America/Santiago

Showing best 3 daytime windows
RANK #1Score 99
12:00 – 15:00
2026-10-16 (Local)

Optimal window

Temp19°C
Precip Risk1%
Wind Peak5 km/h
RANK #2Score 98
15:00 – 18:00
2026-10-16 (Local)

Optimal window

Temp21°C
Precip Risk3%
Wind Peak7 km/h
RANK #3Score 98
12:00 – 15:00
2026-10-17 (Local)

Optimal window

Temp18°C
Precip Risk3%
Wind Peak7 km/h

Scoring Rules & Methodology

  • Precipitation: Up to 50 points deducted proportional to hourly rain probability.
  • Temperature: Scored against ideal activity range (18°C to 26°C). Deductions apply linearly outside this band.
  • Wind: Up to 20 points deducted when peak gusts exceed 25 km/h.
  • Time Zones: Hourly timestamps are evaluated against the target city’s native timezone (America/Santiago) for daytime windows (07:00–22:00).