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Reitz

Sunday 21 June 2026

87%

Excellent

Forecast Reliability

Based on 31 days of verified data (last 30 days, Reitz)

Temp accuracy: ±1.8°C Rain detected: 100% of events (50% false alarms) Frost detected: 50% of events

Score weighting: Temperature 40%, Rainfall 40%, Wind 20%

Rain

Sunday

Temperature

6.4° — 10.3°C

Rain

7.5 mm

Max wind

13.9 km/h

Humidity

92%

Solar Forecast Calibrated × 0.801

Daily Solar

0.66 kWh/m²

661 Wh/m²

Peak Hour

Solar irradiance from ECMWF IFS, calibrated against 136 station readings (high confidence).

Model Comparison

Models agree (1.2° spread)
Model Max Min Rain Wind Rain %
ECMWF IFS 10.3° 6.4° 7.5 mm 13.9 km/h 100%
ICON 9.8° 7.0° 4.3 mm 11.5 km/h
yr.no 9.1° 6.3° 7.5 mm 7.6 km/h

Comparing 3 weather models. Lower spread = higher confidence.

No hourly data available for this date yet. Hourly data is available for the next few days.

ECMWF IFS forecast (9km resolution) via Open-Meteo. Last updated 21 Jun 20:00 SAST.