Maximum potential solar radiation


Annual average maximum 920.23 W/m2
Minimum 621.00 W/m2
22 June
Maximum 1137.00 W/m2
29 December

Months


15 January 12.17 1133.49
15 February 12.22 1094.32
15 March 12.16 998.243
15 April 12.07 845.435
15 May 12.04 700.931
15 June 12.08 623.542
15 July 12.14 653.196
15 August 12.12 773.877
15 September 12.03 926.572
15 October 11.53 1047.54
15 November 11.52 1114.16
15 December 12.03 1135.06

Days


1 January 12.11 1136.93
2 January 12.11 1136.87
3 January 12.12 1136.78
4 January 12.12 1136.67
5 January 12.13 1136.53
6 January 12.13 1136.36
7 January 12.13 1136.17
8 January 12.14 1135.95
9 January 12.14 1135.69
10 January 12.15 1135.41
11 January 12.15 1135.09
12 January 12.15 1134.74
13 January 12.16 1134.36
14 January 12.16 1133.94
15 January 12.17 1133.49
16 January 12.17 1132.99
17 January 12.17 1132.46
18 January 12.18 1131.88
19 January 12.18 1131.27
20 January 12.18 1130.6
21 January 12.19 1129.9
22 January 12.19 1129.15
23 January 12.19 1128.56
24 January 12.19 1127.72
25 January 12.20 1126.84
26 January 12.20 1125.9
27 January 12.20 1124.9
28 January 12.20 1123.85
29 January 12.20 1122.75
30 January 12.21 1121.59
31 January 12.21 1120.37
1 February 12.21 1119.09
2 February 12.21 1117.75
3 February 12.21 1116.34
4 February 12.21 1114.88
5 February 12.21 1113.35
6 February 12.21 1111.75
7 February 12.22 1110.09
8 February 12.22 1108.36
9 February 12.22 1106.57
10 February 12.22 1104.7
11 February 12.22 1102.77
12 February 12.22 1100.76
13 February 12.22 1098.68
14 February 12.22 1096.54
15 February 12.22 1094.32
16 February 12.22 1092.02
17 February 12.22 1089.66
18 February 12.21 1087.22
19 February 12.21 1084.7
20 February 12.21 1082.12
21 February 12.21 1079.46
22 February 12.21 1076.72
23 February 12.21 1073.91
24 February 12.21 1071.02
25 February 12.21 1068.06
26 February 12.20 1065.03
27 February 12.20 1061.92
28 February 12.20 1058.74
29 February 12.20 1055.48
1 March 12.20 1052.15
2 March 12.20 1048.75
3 March 12.19 1045.27
4 March 12.19 1041.73
5 March 12.19 1038.11
6 March 12.19 1034.43
7 March 12.18 1030.67
8 March 12.18 1026.85
9 March 12.18 1022.95
10 March 12.18 1019
11 March 12.17 1014.97
12 March 12.17 1010.88
13 March 12.17 1006.73
14 March 12.17 1002.52
15 March 12.16 998.243
16 March 12.16 993.91
17 March 12.16 989.517
18 March 12.15 985.067
19 March 12.15 980.565
20 March 12.15 976.008
21 March 12.15 971.397
22 March 12.14 966.74
23 March 12.14 962.032
24 March 12.14 957.276
25 March 12.13 952.478
26 March 12.13 947.636
27 March 12.13 942.752
28 March 12.12 937.828
29 March 12.12 932.87
30 March 12.12 927.874
31 March 12.11 922.843
1 April 12.11 918.325
2 April 12.11 913.234
3 April 12.11 908.114
4 April 12.10 902.972
5 April 12.10 897.808
6 April 12.10 892.621
7 April 12.09 887.417
8 April 12.09 882.2
9 April 12.09 876.968
10 April 12.09 871.724
11 April 12.08 866.473
12 April 12.08 861.218
13 April 12.08 855.957
14 April 12.08 850.694
15 April 12.07 845.435
16 April 12.07 840.18
17 April 12.07 834.931
18 April 12.07 829.689
19 April 12.06 824.46
20 April 12.06 819.247
21 April 12.06 814.05
22 April 12.06 808.871
23 April 12.06 803.713
24 April 12.05 798.58
25 April 12.05 793.476
26 April 12.05 788.401
27 April 12.05 783.357
28 April 12.05 778.348
29 April 12.05 773.375
30 April 12.05 768.442
1 May 12.04 763.553
2 May 12.04 758.709
3 May 12.04 753.913
4 May 12.04 749.165
5 May 12.04 744.47
6 May 12.04 739.83
7 May 12.04 735.247
8 May 12.04 730.723
9 May 12.04 726.262
10 May 12.04 721.865
11 May 12.04 717.535
12 May 12.04 713.275
13 May 12.04 709.085
14 May 12.04 704.97
15 May 12.04 700.931
16 May 12.04 696.969
17 May 12.04 693.089
18 May 12.04 689.29
19 May 12.04 685.576
20 May 12.04 681.949
21 May 12.04 678.41
22 May 12.04 674.961
23 May 12.04 671.605
24 May 12.04 668.342
25 May 12.04 665.175
26 May 12.04 662.106
27 May 12.05 659.136
28 May 12.05 656.269
29 May 12.05 653.505
30 May 12.05 650.844
31 May 12.05 648.288
1 June 12.05 645.839
2 June 12.05 643.498
3 June 12.06 641.267
4 June 12.06 639.148
5 June 12.06 637.141
6 June 12.06 635.246
7 June 12.06 633.464
8 June 12.06 631.797
9 June 12.07 630.401
10 June 12.07 628.963
11 June 12.07 627.641
12 June 12.07 626.437
13 June 12.07 625.351
14 June 12.08 624.387
15 June 12.08 623.542
16 June 12.08 622.817
17 June 12.08 622.21
18 June 12.09 621.726
19 June 12.09 621.364
20 June 12.09 621.121
21 June 12.09 620.999
22 June 12.09 620.997
23 June 12.10 621.118
24 June 12.10 621.36
25 June 12.10 621.721
26 June 12.10 622.201
27 June 12.11 622.801
28 June 12.11 623.522
29 June 12.11 624.361
30 June 12.11 625.318
1 July 12.11 626.39
2 July 12.12 627.58
3 July 12.12 628.887
4 July 12.12 630.308
5 July 12.12 631.843
6 July 12.12 633.489
7 July 12.12 635.247
8 July 12.13 637.118
9 July 12.13 639.098
10 July 12.13 641.186
11 July 12.13 643.38
12 July 12.13 645.68
13 July 12.13 648.083
14 July 12.13 650.588
15 July 12.14 653.196
16 July 12.14 655.903
17 July 12.14 658.709
18 July 12.14 661.61
19 July 12.14 664.606
20 July 12.14 667.694
21 July 12.14 670.873
22 July 12.14 674.141
23 July 12.14 677.496
24 July 12.14 680.936
25 July 12.14 684.459
26 July 12.14 688.064
27 July 12.14 691.748
28 July 12.14 695.509
29 July 12.14 699.344
30 July 12.14 703.253
31 July 12.14 707.232
1 August 12.14 711.28
2 August 12.14 715.394
3 August 12.14 719.572
4 August 12.14 723.812
5 August 12.14 728.11
6 August 12.13 732.467
7 August 12.13 736.88
8 August 12.13 741.345
9 August 12.13 745.861
10 August 12.13 750.424
11 August 12.13 755.032
12 August 12.13 759.683
13 August 12.12 764.376
14 August 12.12 769.109
15 August 12.12 773.877
16 August 12.12 778.679
17 August 12.12 783.511
18 August 12.11 788.066
19 August 12.11 792.95
20 August 12.11 797.856
21 August 12.11 802.784
22 August 12.10 807.73
23 August 12.10 812.697
24 August 12.10 817.678
25 August 12.10 822.671
26 August 12.09 827.674
27 August 12.09 832.688
28 August 12.09 837.705
29 August 12.09 842.725
30 August 12.08 847.75
31 August 12.08 852.773
1 September 12.08 857.79
2 September 12.07 862.806
3 September 12.07 867.814
4 September 12.07 872.809
5 September 12.06 877.796
6 September 12.06 882.769
7 September 12.06 887.724
8 September 12.05 892.664
9 September 12.05 897.583
10 September 12.05 902.478
11 September 12.04 907.353
12 September 12.04 912.201
13 September 12.03 917.019
14 September 12.03 921.812
15 September 12.03 926.572
16 September 12.02 931.297
17 September 12.02 935.991
18 September 12.02 940.646
19 September 12.01 945.263
20 September 12.01 949.842
21 September 12.01 954.377
22 September 12.00 958.872
23 September 12.00 963.322
24 September 12.00 967.723
25 September 11.59 972.081
26 September 11.59 976.39
27 September 11.59 980.645
28 September 11.58 984.854
29 September 11.58 989.008
30 September 11.58 993.106
1 October 11.57 997.154
2 October 11.57 1001.14
3 October 11.57 1005.08
4 October 11.56 1008.95
5 October 11.56 1012.77
6 October 11.56 1016.53
7 October 11.55 1020.22
8 October 11.55 1023.86
9 October 11.55 1027.43
10 October 11.55 1030.94
11 October 11.54 1034.39
12 October 11.54 1037.77
13 October 11.54 1041.09
14 October 11.54 1044.35
15 October 11.53 1047.54
16 October 11.53 1050.66
17 October 11.53 1053.72
18 October 11.53 1056.71
19 October 11.52 1059.64
20 October 11.52 1062.5
21 October 11.52 1065.3
22 October 11.52 1068.02
23 October 11.52 1070.69
24 October 11.52 1073.28
25 October 11.54 1075.75
26 October 11.51 1077.68
27 October 11.51 1080.08
28 October 11.51 1082.42
29 October 11.51 1084.69
30 October 11.51 1086.9
31 October 11.51 1089.05
1 November 11.51 1091.14
2 November 11.51 1093.16
3 November 11.51 1095.12
4 November 11.51 1097.02
5 November 11.51 1098.86
6 November 11.51 1100.64
7 November 11.51 1102.36
8 November 11.51 1104.03
9 November 11.51 1105.64
10 November 11.51 1107.19
11 November 11.52 1108.69
12 November 11.52 1110.13
13 November 11.52 1111.53
14 November 11.52 1112.87
15 November 11.52 1114.16
16 November 11.52 1115.4
17 November 11.52 1116.59
18 November 11.53 1117.74
19 November 11.53 1118.84
20 November 11.53 1119.89
21 November 11.53 1120.91
22 November 11.54 1121.88
23 November 11.54 1122.81
24 November 11.54 1123.69
25 November 11.55 1124.54
26 November 11.55 1125.36
27 November 11.55 1126.13
28 November 11.55 1126.87
29 November 11.56 1127.58
30 November 11.56 1128.25
1 December 11.57 1128.89
2 December 11.57 1129.51
3 December 11.57 1130.09
4 December 11.58 1130.64
5 December 11.58 1131.17
6 December 11.59 1131.66
7 December 11.59 1132.13
8 December 11.59 1132.58
9 December 12.00 1133
10 December 12.00 1133.4
11 December 12.01 1133.78
12 December 12.01 1134.13
13 December 12.02 1134.46
14 December 12.02 1134.77
15 December 12.03 1135.06
16 December 12.03 1135.33
17 December 12.04 1135.57
18 December 12.04 1135.8
19 December 12.05 1136.01
20 December 12.05 1136.2
21 December 12.06 1136.37
22 December 12.06 1136.52
23 December 12.07 1136.65
24 December 12.07 1136.76
25 December 12.08 1136.85
26 December 12.08 1136.92
27 December 12.09 1136.97
28 December 12.09 1137
29 December 12.10 1137
30 December 12.10 1136.99
31 December 12.11 1136.95


Units

Language



This wiki might help to use the full potential of Groenkloof weather website. The info section explains the hard and software and connections used.(In the menu bar under the sub menus Weather station and Groenkloof Weather) Weather data updates every minute.(for both the mobile and desktop sites) There is a mobile page with current conditions, forecast, forecast map, station history (with drop down menu for today, yesterday, month, year etc. showing all parameters) and lastly a graph with drop down menu for time period and parameter. (Very useful for quick references ) One can switch to the desktop page using the link in bottom right hand corner and vice versa. The desktop version is where very detailed weather info is available. ( Useful for more in depth detail ) It is divided in “blocks” The sunrise/sunset times and day length is shown. Moon with dates of full moon, new moon etc. The current block shows weather values in easy to read numerical format and updates every minute. “Live gauges” updates every minute and when the curser is hovered over a parameter it will show the min and max values and the time when this occurred. In the forecast maps one can use the menu bar top left of block to choose from windy or dark sky maps. Within the map one can choose from different parameters like wind, temperature, rain, thunder, clouds, pressure etc. Then station data is shown with now, max, min values and drop down menu for different time periods. There is also a history block where one can choose different parameters and a trends block with 1,3,6,12,24 hrs etc trends. Next is a forecast meteogram which is dynamic and moving the cursor over it will show all weather parameters at that point. Then easy to read forecast with dropdown the default using the Norwegian institute of meteorology values.(seems to be most accurate) Next is rainfall for today, this month, this year (from January) Drop down gives more options like seasonal(from September) etc. Rain balance is the stations values measured against 100 year rain data for Pretoria obtained from SA weather services. Next is graph with several drop down options and a day pie graph where one can pick dates and parameters. In extremes one can pick a parameter like absolute temperature, precipitation etc. to see max/min value dates and times. There is a air quality block click within block for more info. Map to show location of station. Webcam with view from Solidatus building updates every 5 minutes. For aviation enthusiasts Cloud height time to sunset and density altitude. Then SA weather warnings from SA weather services, lightning detection and fire danger index. Followed by calendar, earthquakes and astronomical events. World weather...shows current conditions in few world cities. Database: data is stored every 5 mins and available data runs from January 2014. The menu at the top is really self explanatory and here there are countless information, statistics etc. Enjoy!! Johan:johan.devilliers@me.com

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