Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 17

Waning Crescent 12%

04:49

No Set

15 OK
16 Bad
17 OK
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 OK
02 OK
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 OK
12 OK
13 Bad
14 Bad

Sun - Rise: 06:33, Set: 18:32, Transit: 12:33. Moon - Rise: 04:49, Set: No Set. Civil Dark: 18:57 - 06:08. Nautical Dark: 19:26 - 05:39. Astro Dark: 19:55 - 05:10

Total Clouds (% Sky Obscured)

21
58
30
49
71
76
79
80
70
66
44
45
81
73
53
91
83
86
96
92
22
34
56
100

Low Clouds (% Sky Obscured)

4
14
10
10
32
22
35
33
19
18
16
17
22
16
8
0
0
2
3
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
1
1
9
6
1
5
24
31
26
91
83
86
96
91
19
20
50
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

1
0
0
1
5
4
4
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
6
7
8
6
5
3
2
2
0
1
1
1
1
2
2
2
1
2
2
1
2
4
5

Chance of Frost

Temperature (°C)

19
19
18
16
13
12
12
11
11
11
11
10
9
9
9
8
8
10
12
14
16
17
19
20

Feels Like (°C)

17
18
16
13
11
11
11
11
11
12
11
11
10
8
7
7
6
10
12
13
14
16
17
18

Dew Point (°C)

3
3
3
4
7
8
8
9
8
8
8
8
7
7
7
6
6
5
5
4
4
3
4
3

Relative Humidity (%)

33
33
36
45
64
75
80
83
83
84
85
87
87
88
87
88
87
72
61
51
46
39
35
33

Pressure (mb)

1019
1019
1019
1020
1021
1022
1022
1022
1022
1022
1022
1021
1021
1021
1022
1022
1023
1023
1023
1023
1023
1022
1022
1021

Ozone (du)

293
293
293
294
296
298
298
298
298
299
299
299
300
301
301
302
303
304
304
305
304
304
304
305

Thursday 18

Waning Crescent 6%

05:21

15:20

15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:31, Set: 18:33, Transit: 12:33. Moon - Rise: 05:21, Set: 15:20. Civil Dark: 18:58 - 06:07. Nautical Dark: 19:27 - 05:38. Astro Dark: 19:56 - 05:08

Total Clouds (% Sky Obscured)

100
82
84
100
100
100
100
100
100
100
90
84
72
100
92
94
100
100
96
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
2
6
0
7
7
6
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
1
5
1
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
82
84
100
100
100
100
100
100
100
90
84
68
100
90
93
100
100
96
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
7
8
10
8
7
5
4
3
3
3
2
2
2
2
2
1
1
1
2
3
4
5
6

Chance of Frost

Temperature (°C)

20
20
19
16
13
12
11
11
10
9
9
8
8
8
8
8
8
10
13
16
19
21
23
25

Feels Like (°C)

18
17
16
13
10
9
8
8
7
7
6
7
7
6
6
6
6
8
11
14
17
19
21
22

Dew Point (°C)

3
2
2
6
7
7
7
7
6
6
5
6
5
5
4
4
4
3
3
4
4
4
4
4

Relative Humidity (%)

30
30
32
51
64
71
77
78
78
78
80
82
82
81
79
77
73
60
51
44
38
33
28
26

Pressure (mb)

1020
1020
1020
1021
1022
1023
1024
1024
1023
1023
1023
1023
1022
1021
1021
1021
1021
1021
1020
1020
1019
1018
1016
1015

Ozone (du)

307
305
306
306
306
307
306
304
304
305
306
303
300
299
299
297
298
300
300
297
296
295
294
293

Friday 19

Waning Crescent 2%

05:49

16:24

15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 OK
14 OK

Sun - Rise: 06:30, Set: 18:34, Transit: 12:32. Moon - Rise: 05:49, Set: 16:24. Civil Dark: 18:58 - 06:05. Nautical Dark: 19:27 - 05:36. Astro Dark: 19:57 - 05:07

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
96
68
57
50
36
41

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
11

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
12
21
23

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
97
94
68
57
27
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
7
7
6
3
2
1
0
2
2
2
3
3
3
3
3
4
4
6
9
12
13
14
16

Chance of Frost

Temperature (°C)

25
25
24
21
18
15
15
14
13
12
12
12
12
12
12
12
13
15
18
21
23
24
24
25

Feels Like (°C)

23
22
19
18
16
14
14
13
12
12
12
12
11
11
11
11
11
13
16
17
20
20
20
19

Dew Point (°C)

4
3
6
12
13
12
12
11
11
11
11
11
11
10
10
9
8
7
5
3
-1
-4
-4
-5

Relative Humidity (%)

24
23
31
56
76
80
83
86
87
92
92
92
92
89
87
83
74
56
43
31
21
16
15
14

Pressure (mb)

1014
1014
1014
1014
1015
1016
1016
1015
1015
1015
1015
1015
1015
1014
1015
1015
1016
1016
1017
1017
1017
1017
1016
1016

Ozone (du)

292
291
289
288
288
289
290
290
292
293
295
295
295
295
297
297
297
298
299
300
301
301
301
301

Saturday 20

Waning Crescent 0%

06:14

17:24

15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 OK
22 OK
23 OK
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:29, Set: 18:34, Transit: 12:32. Moon - Rise: 06:14, Set: 17:24. Civil Dark: 18:59 - 06:04. Nautical Dark: 19:28 - 05:35. Astro Dark: 19:58 - 05:05

Total Clouds (% Sky Obscured)

46
55
59
60
58
46
34
23
31
42
77
67
63
46
52
71
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

21
31
33
35
37
31
24
17
25
35
43
39
34
30
28
27
19
18
17
18
18
17
15
14

Medium Clouds (% Sky Obscured)

23
26
27
30
33
22
10
0
0
0
0
0
0
0
0
0
0
18
71
38
24
11
0
11

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
20
9
9
4
29
57
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

1
0
0
0
0
0
1
0
0
1
0
0
0
0
0
0
0
1
1
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

14
13
12
8
5
4
3
3
3
3
2
3
3
3
3
2
2
2
3
4
5
6
7
7

Chance of Frost

Temperature (°C)

24
23
22
20
17
15
14
13
12
12
11
11
10
11
10
11
11
12
14
16
19
20
22
23

Feels Like (°C)

18
18
19
19
17
16
17
14
13
13
12
10
9
10
10
12
12
11
12
14
17
18
20
20

Dew Point (°C)

-4
-2
1
6
12
14
13
12
11
10
10
9
9
9
9
9
9
8
7
6
5
4
3
3

Relative Humidity (%)

16
19
24
38
70
89
92
92
92
92
91
91
90
91
90
88
86
73
61
48
39
33
29
27

Pressure (mb)

1017
1017
1017
1018
1020
1021
1022
1022
1022
1022
1022
1022
1021
1021
1021
1021
1021
1020
1020
1019
1018
1017
1015
1014

Ozone (du)

300
300
301
301
301
300
298
298
298
296
295
294
294
294
293
292
290
290
290
290
291
292
293
293

Sunday 21

New Moon 0%

06:38

18:23

15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:27, Set: 18:35, Transit: 12:31. Moon - Rise: 06:38, Set: 18:23. Civil Dark: 19:00 - 06:02. Nautical Dark: 19:29 - 05:33. Astro Dark: 19:58 - 05:04

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
99
97
97
98
99
100
98
96
95
78
64
52
65
78
90
81

Low Clouds (% Sky Obscured)

12
11
11
10
10
18
40
61
75
86
93
94
94
93
93
94
95
76
50
28
42
60
77
74

Medium Clouds (% Sky Obscured)

24
83
38
48
41
38
29
15
23
40
91
92
89
85
57
28
0
3
5
8
11
14
36
34

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
88
80
70
62
43
22
15
9
0
1
3
4
3
2
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
5
6
6
6
6
5
4

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

0
0
1
1
0
0
1
3
5
7
20
41
44
40
65
78
87
93
95
95
90
95
95
68

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.4
0.5
0.8
0.9
0.3
0.6
1
0.2

Wind Speed/Direction (mph)

9
11
12
11
9
8
7
5
5
3
2
1
2
2
3
3
4
4
4
5
7
8
10
11

Chance of Frost

Temperature (°C)

22
20
18
17
15
14
14
13
13
13
13
13
13
13
13
13
13
13
15
16
16
16
16
16

Feels Like (°C)

18
14
14
12
12
11
11
11
11
11
12
12
12
12
12
12
12
11
14
14
13
14
14
15

Dew Point (°C)

1
7
11
12
11
11
12
12
12
12
12
11
12
11
11
11
10
9
8
6
4
5
5
5

Relative Humidity (%)

25
43
63
73
78
83
89
93
95
92
92
89
90
90
90
86
79
74
62
52
43
45
47
48

Pressure (mb)

1013
1013
1013
1013
1013
1013
1013
1013
1012
1011
1011
1011
1011
1011
1011
1011
1012
1013
1013
1014
1015
1016
1016
1017

Ozone (du)

293
292
293
292
293
294
294
296
296
296
296
298
299
301
302
310
318
325
326
326
326
320
314
308

Monday 22

Waxing Crescent 3%

07:02

19:21

15 Bad
16 Bad
17 Bad
18 OK
19 OK
20 OK
21 OK
22 OK
23 OK
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:26, Set: 18:36, Transit: 12:31. Moon - Rise: 07:02, Set: 19:21. Civil Dark: 19:01 - 06:01. Nautical Dark: 19:30 - 05:32. Astro Dark: 19:59 - 05:02

Total Clouds (% Sky Obscured)

71
58
35
19
5
5
14
23
42
55
56
61
62
68
71
70
66
71
84
98
82
67
51
57

Low Clouds (% Sky Obscured)

71
58
35
19
5
5
14
23
42
50
49
42
36
30
21
12
2
1
1
0
3
6
9
34

Medium Clouds (% Sky Obscured)

21
8
5
2
0
0
0
0
0
0
0
0
0
0
0
0
0
21
43
64
65
65
51
45

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
5
5
24
29
50
57
50
51
62
78
95
68
42
14
6

ISS Passover

Visibility (miles)

6
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

62
34
22
22
16
15
17
11
10
9
7
3
2
0
1
1
0
0
0
0
0
0
0
4

Precipitation Amount (mm)

0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
9
8
6
4
2
1
1
1
1
2
2
2
2
2
2
2
2
1
2
3
4
5
6

Chance of Frost

Temperature (°C)

16
16
16
15
14
13
12
12
11
10
10
10
10
9
8
9
9
10
12
15
17
18
19
20

Feels Like (°C)

14
14
14
13
12
13
9
9
10
9
10
10
10
10
9
9
8
7
10
11
12
13
13
13

Dew Point (°C)

7
8
9
9
9
9
9
8
8
7
7
7
7
7
7
6
6
6
6
5
5
4
4
3

Relative Humidity (%)

53
59
64
69
74
79
79
79
79
80
81
83
84
88
90
82
78
73
63
53
46
40
36
32

Pressure (mb)

1018
1018
1019
1021
1022
1023
1023
1024
1024
1024
1024
1024
1024
1025
1025
1025
1026
1026
1026
1026
1026
1025
1024
1024

Ozone (du)

308
309
309
309
309
309
310
312
314
315
316
316
319
322
324
328
332
336
339
342
346
347
348
350

Tuesday 23

Waxing Crescent 7%

07:27

20:18

15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 06:24, Set: 18:36, Transit: 12:31. Moon - Rise: 07:27, Set: 20:18. Civil Dark: 19:01 - 06:00. Nautical Dark: 19:30 - 05:30. Astro Dark: 20:00 - 05:01

Total Clouds (% Sky Obscured)

64
63
52
47
49
48
48
49
54
62
79
82
86
88
87
88
88

Low Clouds (% Sky Obscured)

61
63
52
47
49
48
48
49
54
62
79
82
80
78
79
83
82

Medium Clouds (% Sky Obscured)

24
2
13
24
36
31
16
5
3
1
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

8
6
4
4
4
4
4
4
4
6
8
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
Very Light Rain
Very Light Rain
None
None
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

12
13
34
48
52
46
49
53
47
39
27
22
15
5
5
6
6

Precipitation Amount (mm)

0
0
0
0.2
0.3
0
0
0.3
0.2
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
8
9
7
5
4
3
3
3
2
2
2
2
2
2
2
1

Chance of Frost

Temperature (°C)

19
19
18
17
15
13
13
12
12
12
11
11
11
11
10
11
11

Feels Like (°C)

18
18
17
17
17
16
9
10
10
10
9
9
8
9
8
8
8

Dew Point (°C)

4
6
8
10
11
12
11
11
10
8
7
6
6
5
5
4
4

Relative Humidity (%)

37
44
51
63
78
95
90
89
86
80
76
71
69
68
68
64
60

Pressure (mb)

1024
1024
1025
1026
1027
1028
1029
1029
1030
1030
1030
1030
1030
1030
1031
1031
1032

Ozone (du)

351
353
355
357
359
362
360
359
357
355
352
350
349
348
347
347
346

Forecast for Gelukshoop, Cape Winelands District Municipality, South Africa (-33.97,20.13)

Generated: 17/09/25 14:52:20. Forecast: 17/09/25 to 23/09/25. Timezone: UTC+2.00