Local calibration

Personal settings for this browser only. They do not change the forecast shown to other visitors. Hourly values remain uncorrected.

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Precipitation preset: winter ×1.30 (days 1–3), ×1.50 (4–7), otherwise ×1.00. Uses GFS, IFS 0.25°, AIFS and GEM. Fresh snow is shown in cm without calibration; the precipitation multiplier does not change snow depth. Choose Recommended preset, then Save changes to apply.

Enable calibration

When disabled, the page shows an equal-weight blend without corrections. Day 1 is today in Greece.

Local change note

Model weights

0 = excluded, 1 = normal weight. Each column needs at least one positive weight. Weights apply across all seasons and forecast ranges.

Model	High	Low	Precipitation	Wind

Corrections by season and forecast range

Offsets are added in °C. Multipliers adjust precipitation and wind: 1 means no change. The season is determined by the forecast date.

Season	Days	High ±°C	Low ±°C	Precipitation ×	Wind ×

Limits: temperature −5 to +5 °C, multipliers 0 to 3. If the corrected low exceeds the high, it is capped at the high and a note is shown.

Before applying changes

The recommended preset uses IFS 9 km for the high and IFS 0.25° for the low, with seasonal corrections for the high. Precipitation uses the four-model winter correction. Wind and pressure retain their existing blend. Pressure is not calibrated. Days 8–14 have no correction. Personal weights may differ.

Saving updates only your view on the next load. To change shared defaults, edit config.js and upload it to the website. Undo restores the previous saved settings.