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Reitz

Wednesday 20 May 2026

89%

Excellent

Forecast Reliability

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

Temp accuracy: ±1.5°C Rain detected: 67% of events Frost detected: 0% of events

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

Clear

Wednesday

Temperature

4.2° — 16.8°C

Rain

0.0 mm

Max wind

12.6 km/h

Humidity

69%

Solar Forecast Calibrated × 0.756

Daily Solar

3.38 kWh/m²

3,381 Wh/m²

Peak Hour

516 W/m²

at 12:00

Solar irradiance from ECMWF IFS, calibrated against 122 station readings (high confidence).

Model Comparison

Models disagree (6° spread)
Model Max Min Rain Wind Rain %
ECMWF IFS 16.8° 4.2° 0.0 mm 12.6 km/h 0%
ICON 17.5° 2.4° 0.0 mm 11.2 km/h
yr.no 11.5° 6.8° 0.0 mm 14.0 km/h

Comparing 3 weather models. Lower spread = higher confidence.

Hourly Forecast

Time Temp Rain Wind
00:00 6.8° 11.5
01:00 6.2° 12.0
02:00 5.6° 12.1
03:00 4.9° 11.3
04:00 4.4° 10.2
05:00 4.2° 9.1
06:00 4.6° 9.0
Sunrise 06:42
07:00 5.3° 9.3
08:00 6.7° 9.6
09:00 9.0° 9.1
10:00 12.0° 8.3
11:00 14.3° 7.9
12:00 15.7° 8.0
13:00 16.5° 8.5
14:00 16.8° 8.0
15:00 16.4° 5.8
16:00 15.4° 4.6
17:00 14.3° 5.2
Sunset 17:23
18:00 13.1° 6.4
19:00 11.7° 9.9
20:00 10.4° 12.6
21:00 9.2° 12.3
22:00 8.1° 10.5
23:00 7.2° 8.9

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