Updated: Sunday, 18 May 2025 11:23 AM SAST 
Day High Temp (°C) Low Temp (°C) Mean Temp (°C) Dewpoint Temp (°C) Humidity (%) Wind Speed (km/h) Precipitation (mm)
Forcast Dep. Forcast Dep. Forcast Dep. Forcast Dep. Forcast Dep. Forcast Dep. Forcast Dep.
Sun, May 18 22 +0.3 5 +2.3 13 +1.3 4 +0.2 31 -28.8 6 +3.3 --
Mon, May 19 21 +1.0 4 +0.8 13 +0.9 3 -0.8 31 -30.5 11 +15.2 --
Tue, May 20 22 -7.5 3 -2.6 13 -5.1 1 -8.9 26 -25.5 23 +15.2 <1mm --
Wed, May 21 12 -3.7 -1 -6.0 6 -4.9 -7 -5.5 33 -33.7 32 +7.2 <1cm -0.9
Thu, May 22 18 -1.4 -3 -2.7 7 -2.1 -3 -2.6 26 -30.4 14 -2.5 -3.6
Fri, May 23 19 -1.9 -1 +0.9 9 -0.5 1 -1.9 31 -28.4 5 0 --
Sat, May 24 19 -2.4 2 +1.9 11 -0.3 2 -2.4 34 -27.5 6 +2.1 --
Sun, May 25 19 -2.8 2 +3.4 11 +0.3 -1 -1.4 26 -23.3 9 +2.6 --
Mon, May 26 18 -1.6 6 +4.2 12 +1.3 2 +0.9 34 -20.1 13 +3.5 --
Tue, May 27 19 -0.6 6 +5.7 13 +2.5 3 +2.6 35 -19.3 12 +3.5 --
Wed, May 28 20 -0.8 6 +5.1 13 +2.2 1 +1.1 30 -20.2 11 +6.2 --
Thu, May 29 17 -1.0 5 +4.4 11 +1.7 2 -1.4 38 -26.9 26 -1.9 --
Fri, May 30 15 -0.5 3 +4.9 9 +2.2 -4 -2.6 27 -31.2 5 0 -0.6
Sat, May 31 15 +0.2 3 +5.9 9 +3.0 1 -0.8 40 -27.6 9 0 -1.2
The values above are the forecast deviations from normal for the day. The deviations are derived from a 30-year average between 1981 and 2010 for Bethlehem Airport, South Africa.