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Reitz

Sunday 17 May 2026

86%

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%

Fair

Sunday

Temperature

5.4° — 17.1°C

Rain

0.0 mm

Max wind

10.7 km/h

Humidity

76%

Solar Forecast Calibrated × 0.815

Daily Solar

3.32 kWh/m²

3,320 Wh/m²

Peak Hour

Solar irradiance from ECMWF IFS, calibrated against 127 station readings (high confidence).

Model Comparison

Models disagree (5.7° spread)
Model Max Min Rain Wind Rain %
ECMWF IFS 17.1° 5.4° 0.0 mm 10.7 km/h 0%
ICON 17.3° 3.1° 0.0 mm 15.0 km/h
yr.no 11.6° 7.8° 0.0 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 17 May 20:00 SAST.