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Reitz

Tuesday 21 July 2026

87%

Excellent

Forecast Reliability

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

Temp accuracy: ±1.7°C Rain detected: 100% of events (50% false alarms) Frost detected: 50% of events

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

Partly cloudy

Tuesday

Temperature

2.8° — 18.5°C

Rain

0.0 mm

Max wind

17.2 km/h

Humidity

44%

Solar Forecast Calibrated × 0.799

Daily Solar

3.56 kWh/m²

3,559 Wh/m²

Peak Hour

549 W/m²

at 13:00

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

Model Comparison

Models disagree (9.1° spread)
Model Max Min Rain Wind Rain %
ECMWF IFS 18.5° 2.8° 0.0 mm 17.2 km/h 0%
ICON 20.0° -0.6° 0.0 mm 20.5 km/h
yr.no 10.9° 6.2° 0.0 mm 6.8 km/h

Comparing 3 weather models. Lower spread = higher confidence.

Hourly Forecast

Time Temp Rain Wind
00:00 5.2° 5.4
01:00 4.4° 5.3
02:00 3.8° 5.9
03:00 3.2° 6.6
04:00 2.8° 7.5
05:00 2.8° 7.9
06:00 3.1° 6.8
Sunrise 06:54
07:00 3.8° 4.9
08:00 5.4° 3.8
09:00 8.3° 3.3
10:00 12.1° 4.6
11:00 15.1° 7.0
12:00 17.0° 10.6
13:00 18.1° 15.0
14:00 18.5° 17.2
15:00 17.7° 15.0
16:00 16.1° 10.6
17:00 14.4° 7.1
Sunset 17:31
18:00 12.6° 5.0
19:00 10.7° 3.7
20:00 9.1° 2.7
21:00 8.1° 2.4
22:00 7.4° 2.9
23:00 7.0° 2.9

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