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Reitz

Monday 18 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%

Clear

Monday

Temperature

5.0° — 18.1°C

Rain

0.0 mm

Max wind

15.6 km/h

Humidity

60%

Solar Forecast Calibrated × 0.815

Daily Solar

3.71 kWh/m²

3,706 Wh/m²

Peak Hour

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

Model Comparison

Models disagree (6.7° spread)
Model Max Min Rain Wind Rain %
ECMWF IFS 18.1° 5.0° 0.0 mm 15.6 km/h 0%
ICON 18.1° 2.2° 0.0 mm 19.0 km/h
yr.no 11.4° 7.6° 0.0 mm 14.8 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 18 May 20:00 SAST.