Maximum potential solar radiation


Annual average maximum 914.24 W/m2
Minimum 615.46 W/m2
21 June
Maximum 1130.76 W/m2
29 December

Months


15 January 12:17 1127.23
15 February 12:22 1088.07
15 March 12:17 992.079
15 April 12:08 839.468
15 May 12:04 695.216
15 June 12:08 617.998
15 July 12:14 647.609
15 August 12:12 768.082
15 September 12:03 920.571
15 October 11:54 1041.4
15 November 11:52 1107.95
15 December 12:03 1128.82

Days


1 January 12:11 1130.68
2 January 12:11 1130.62
3 January 12:12 1130.53
4 January 12:12 1130.41
5 January 12:13 1130.28
6 January 12:13 1130.11
7 January 12:14 1129.91
8 January 12:14 1129.69
9 January 12:15 1129.44
10 January 12:15 1129.15
11 January 12:15 1128.84
12 January 12:16 1128.49
13 January 12:16 1128.1
14 January 12:17 1127.68
15 January 12:17 1127.23
16 January 12:17 1126.73
17 January 12:18 1126.2
18 January 12:18 1125.62
19 January 12:18 1125
20 January 12:19 1124.34
21 January 12:19 1123.64
22 January 12:19 1122.88
23 January 12:19 1122.3
24 January 12:20 1121.46
25 January 12:20 1120.57
26 January 12:20 1119.63
27 January 12:20 1118.64
28 January 12:21 1117.59
29 January 12:21 1116.48
30 January 12:21 1115.32
31 January 12:21 1114.1
1 February 12:21 1112.82
2 February 12:21 1111.48
3 February 12:22 1110.08
4 February 12:22 1108.61
5 February 12:22 1107.09
6 February 12:22 1105.49
7 February 12:22 1103.83
8 February 12:22 1102.1
9 February 12:22 1100.31
10 February 12:22 1098.44
11 February 12:22 1096.51
12 February 12:22 1094.51
13 February 12:22 1092.43
14 February 12:22 1090.28
15 February 12:22 1088.07
16 February 12:22 1085.77
17 February 12:22 1083.41
18 February 12:22 1080.97
19 February 12:22 1078.46
20 February 12:22 1075.87
21 February 12:21 1073.21
22 February 12:21 1070.48
23 February 12:21 1067.67
24 February 12:21 1064.79
25 February 12:21 1061.83
26 February 12:21 1058.8
27 February 12:21 1055.69
28 February 12:20 1052.51
29 February 12:20 1049.26
1 March 12:20 1045.93
2 March 12:20 1042.53
3 March 12:20 1039.06
4 March 12:19 1035.52
5 March 12:19 1031.91
6 March 12:19 1028.23
7 March 12:19 1024.47
8 March 12:18 1020.65
9 March 12:18 1016.77
10 March 12:18 1012.81
11 March 12:18 1008.79
12 March 12:17 1004.7
13 March 12:17 1000.56
14 March 12:17 996.35
15 March 12:17 992.079
16 March 12:16 987.75
17 March 12:16 983.364
18 March 12:16 978.92
19 March 12:15 974.42
20 March 12:15 969.87
21 March 12:15 965.266
22 March 12:15 960.61
23 March 12:14 955.91
24 March 12:14 951.162
25 March 12:14 946.367
26 March 12:13 941.531
27 March 12:13 936.654
28 March 12:13 931.737
29 March 12:12 926.782
30 March 12:12 921.795
31 March 12:12 916.773
1 April 12:12 912.253
2 April 12:11 907.17
3 April 12:11 902.06
4 April 12:11 896.922
5 April 12:10 891.764
6 April 12:10 886.587
7 April 12:10 881.391
8 April 12:09 876.177
9 April 12:09 870.955
10 April 12:09 865.72
11 April 12:09 860.475
12 April 12:08 855.225
13 April 12:08 849.974
14 April 12:08 844.721
15 April 12:08 839.468
16 April 12:07 834.219
17 April 12:07 828.98
18 April 12:07 823.748
19 April 12:07 818.527
20 April 12:07 813.319
21 April 12:06 808.13
22 April 12:06 802.961
23 April 12:06 797.813
24 April 12:06 792.689
25 April 12:06 787.59
26 April 12:05 782.523
27 April 12:05 777.489
28 April 12:05 772.489
29 April 12:05 767.526
30 April 12:05 762.603
1 May 12:05 757.721
2 May 12:05 752.884
3 May 12:05 748.094
4 May 12:04 743.356
5 May 12:04 738.67
6 May 12:04 734.039
7 May 12:04 729.465
8 May 12:04 724.95
9 May 12:04 720.498
10 May 12:04 716.109
11 May 12:04 711.788
12 May 12:04 707.536
13 May 12:04 703.355
14 May 12:04 699.247
15 May 12:04 695.216
16 May 12:04 691.263
17 May 12:04 687.389
18 May 12:04 683.599
19 May 12:04 679.892
20 May 12:04 676.272
21 May 12:04 672.74
22 May 12:04 669.298
23 May 12:04 665.948
24 May 12:05 662.692
25 May 12:05 659.534
26 May 12:05 656.473
27 May 12:05 653.511
28 May 12:05 650.649
29 May 12:05 647.89
30 May 12:05 645.234
31 May 12:05 642.683
1 June 12:06 640.24
2 June 12:06 637.906
3 June 12:06 635.681
4 June 12:06 633.567
5 June 12:06 631.563
6 June 12:06 629.672
7 June 12:07 627.895
8 June 12:07 626.235
9 June 12:07 624.84
10 June 12:07 623.404
11 June 12:07 622.085
12 June 12:08 620.885
13 June 12:08 619.804
14 June 12:08 618.842
15 June 12:08 617.998
16 June 12:08 617.273
17 June 12:09 616.672
18 June 12:09 616.19
19 June 12:09 615.828
20 June 12:09 615.585
21 June 12:10 615.464
22 June 12:10 615.465
23 June 12:10 615.586
24 June 12:10 615.827
25 June 12:10 616.186
26 June 12:11 616.668
27 June 12:11 617.269
28 June 12:11 617.988
29 June 12:11 618.824
30 June 12:11 619.777
1 July 12:12 620.851
2 July 12:12 622.04
3 July 12:12 623.343
4 July 12:12 624.761
5 July 12:12 626.292
6 July 12:13 627.936
7 July 12:13 629.694
8 July 12:13 631.56
9 July 12:13 633.536
10 July 12:13 635.619
11 July 12:13 637.809
12 July 12:14 640.103
13 July 12:14 642.504
14 July 12:14 645.006
15 July 12:14 647.609
16 July 12:14 650.312
17 July 12:14 653.111
18 July 12:14 656.007
19 July 12:14 658.997
20 July 12:14 662.079
21 July 12:14 665.252
22 July 12:14 668.513
23 July 12:14 671.862
24 July 12:14 675.296
25 July 12:14 678.813
26 July 12:14 682.411
27 July 12:14 686.088
28 July 12:14 689.843
29 July 12:14 693.672
30 July 12:14 697.574
31 July 12:14 701.547
1 August 12:14 705.588
2 August 12:14 709.696
3 August 12:14 713.867
4 August 12:14 718.1
5 August 12:14 722.392
6 August 12:14 726.742
7 August 12:14 731.146
8 August 12:14 735.602
9 August 12:13 740.11
10 August 12:13 744.667
11 August 12:13 749.269
12 August 12:13 753.913
13 August 12:13 758.599
14 August 12:13 763.321
15 August 12:12 768.082
16 August 12:12 772.878
17 August 12:12 777.704
18 August 12:12 782.254
19 August 12:12 787.127
20 August 12:11 792.027
21 August 12:11 796.949
22 August 12:11 801.89
23 August 12:11 806.846
24 August 12:10 811.821
25 August 12:10 816.808
26 August 12:10 821.804
27 August 12:09 826.808
28 August 12:09 831.821
29 August 12:09 836.835
30 August 12:09 841.849
31 August 12:08 846.867
1 September 12:08 851.88
2 September 12:08 856.885
3 September 12:07 861.887
4 September 12:07 866.878
5 September 12:07 871.855
6 September 12:06 876.822
7 September 12:06 881.773
8 September 12:06 886.703
9 September 12:05 891.617
10 September 12:05 896.509
11 September 12:05 901.373
12 September 12:04 906.218
13 September 12:04 911.032
14 September 12:03 915.815
15 September 12:03 920.571
16 September 12:03 925.291
17 September 12:02 929.977
18 September 12:02 934.628
19 September 12:02 939.239
20 September 12:01 943.812
21 September 12:01 948.344
22 September 12:01 952.831
23 September 12:00 957.276
24 September 12:00 961.675
25 September 12:00 966.024
26 September 11:59 970.329
27 September 11:59 974.582
28 September 11:59 978.782
29 September 11:58 982.933
30 September 11:58 987.03
1 October 11:58 991.069
2 October 11:57 995.056
3 October 11:57 998.986
4 October 11:57 1002.85
5 October 11:56 1006.67
6 October 11:56 1010.42
7 October 11:56 1014.11
8 October 11:55 1017.74
9 October 11:55 1021.32
10 October 11:55 1024.82
11 October 11:55 1028.26
12 October 11:54 1031.64
13 October 11:54 1034.96
14 October 11:54 1038.21
15 October 11:54 1041.4
16 October 11:53 1044.52
17 October 11:53 1047.58
18 October 11:53 1050.57
19 October 11:53 1053.49
20 October 11:53 1056.35
21 October 11:52 1059.14
22 October 11:52 1061.86
23 October 11:52 1064.52
24 October 11:52 1067.12
25 October 11:54 1069.6
26 October 11:52 1071.51
27 October 11:52 1073.91
28 October 11:52 1076.25
29 October 11:52 1078.52
30 October 11:52 1080.73
31 October 11:51 1082.87
1 November 11:51 1084.95
2 November 11:51 1086.97
3 November 11:51 1088.93
4 November 11:51 1090.83
5 November 11:51 1092.67
6 November 11:51 1094.45
7 November 11:52 1096.17
8 November 11:52 1097.83
9 November 11:52 1099.44
10 November 11:52 1100.99
11 November 11:52 1102.49
12 November 11:52 1103.93
13 November 11:52 1105.33
14 November 11:52 1106.66
15 November 11:52 1107.95
16 November 11:53 1109.19
17 November 11:53 1110.39
18 November 11:53 1111.53
19 November 11:53 1112.63
20 November 11:53 1113.68
21 November 11:54 1114.69
22 November 11:54 1115.66
23 November 11:54 1116.59
24 November 11:55 1117.48
25 November 11:55 1118.33
26 November 11:55 1119.14
27 November 11:55 1119.91
28 November 11:56 1120.65
29 November 11:56 1121.36
30 November 11:57 1122.03
1 December 11:57 1122.67
2 December 11:57 1123.28
3 December 11:58 1123.86
4 December 11:58 1124.42
5 December 11:58 1124.94
6 December 11:59 1125.44
7 December 11:59 1125.9
8 December 12:00 1126.35
9 December 12:00 1126.77
10 December 12:01 1127.17
11 December 12:01 1127.54
12 December 12:02 1127.89
13 December 12:02 1128.23
14 December 12:03 1128.53
15 December 12:03 1128.82
16 December 12:03 1129.09
17 December 12:04 1129.34
18 December 12:04 1129.56
19 December 12:05 1129.77
20 December 12:05 1129.96
21 December 12:06 1130.13
22 December 12:06 1130.28
23 December 12:07 1130.41
24 December 12:07 1130.51
25 December 12:08 1130.61
26 December 12:08 1130.67
27 December 12:09 1130.72
28 December 12:09 1130.75
29 December 12:10 1130.76
30 December 12:10 1130.74
31 December 12:11 1130.71


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 Herbert Baker Street 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 explanotory and here there are countless information, statistics etc. Enjoy!! Leon :leonrossouw@me.com

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