Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 31

Waning Gibbous 84%

21:03

08:18

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

Sun - Rise: 06:10, Set: 17:41, Transit: 11:55. Moon - Rise: 21:03, Set: 08:18. Civil Dark: 18:05 - 05:46. Nautical Dark: 18:32 - 05:18. Astro Dark: 19:00 - 04:51

Total Clouds (% Sky Obscured)

99
100
100
99
100
96
64
41
45
40
30
11
8
10
15
16
13
3
7
100
77
63
70
36

Low Clouds (% Sky Obscured)

99
100
100
99
100
96
57
33
37
34
25
7
3
8
12
15
8
0
0
1
2
1
0
3

Medium Clouds (% Sky Obscured)

48
35
17
2
0
1
0
1
0
0
0
2
4
4
8
4
4
1
7
49
48
57
69
35

High Clouds (% Sky Obscured)

24
1
1
18
12
1
0
0
0
0
0
0
0
0
0
0
0
1
0
100
70
2
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
1
6
1
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 (%)

38
36
26
16
10
8
5
1
0
2
0
0
0
0
0
0
0
0
3
17
2
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)

4
3
2
1
1
1
2
2
3
4
3
3
3
5
6
8
10
9
10
6
8
6
7
4

Chance of Frost

Temperature (°C)

20
20
20
20
20
20
19
19
19
18
18
18
20
22
24
25
26
25
25
24
23
23
22
22

Feels Like (°C)

20
21
21
21
22
21
21
22
22
21
21
22
23
24
26
26
26
26
26
27
24
24
23
23

Dew Point (°C)

18
18
18
18
17
18
17
17
17
17
17
16
16
16
16
16
17
18
18
18
19
18
18
17

Relative Humidity (%)

86
86
88
86
85
88
88
91
92
93
92
88
77
69
61
58
59
63
65
68
74
75
75
75

Pressure (mb)

1023
1024
1024
1024
1024
1023
1023
1022
1022
1022
1022
1022
1023
1022
1022
1021
1020
1019
1018
1018
1018
1018
1018
1018

Ozone (du)

306
303
303
303
304
306
307
307
308
309
308
306
305
306
306
304
304
304
304
302
302
304
305
306

Tuesday 1

Waning Gibbous 75%

22:08

08:55

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

Sun - Rise: 06:09, Set: 17:41, Transit: 11:55. Moon - Rise: 22:08, Set: 08:55. Civil Dark: 18:05 - 05:45. Nautical Dark: 18:33 - 05:17. Astro Dark: 19:01 - 04:49

Total Clouds (% Sky Obscured)

3
74
80
76
43
29
26
2
32
13
10
23
42
22
24
28
24
30
39
29
38
78
64
36

Low Clouds (% Sky Obscured)

0
16
12
15
20
23
18
0
0
0
0
0
27
17
14
17
16
21
22
17
29
49
36
31

Medium Clouds (% Sky Obscured)

2
69
72
66
34
1
1
2
32
13
10
23
14
0
1
1
2
2
9
2
2
34
36
7

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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
2
1
0
0
0
2
1
1
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
1
1
7
2
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)

3
2
4
3
2
3
3
3
4
4
5
4
11
13
13
14
15
14
13
12
11
9
5
5

Chance of Frost

Temperature (°C)

21
21
20
20
20
20
19
19
19
19
19
20
22
22
24
25
25
25
24
23
22
22
21
20

Feels Like (°C)

24
24
21
22
22
23
22
22
21
20
20
21
21
21
23
24
24
24
24
23
23
23
22
21

Dew Point (°C)

17
17
17
17
17
16
15
13
12
10
9
8
10
13
16
17
17
17
17
17
17
17
18
17

Relative Humidity (%)

75
79
79
84
84
78
73
68
62
55
50
45
45
55
60
60
61
63
65
71
72
76
81
82

Pressure (mb)

1019
1019
1019
1019
1018
1017
1017
1016
1015
1016
1016
1016
1018
1020
1020
1020
1019
1018
1018
1017
1018
1018
1019
1019

Ozone (du)

307
306
305
305
302
300
299
296
293
291
291
291
291
290
289
288
287
287
286
286
288
288
289
288

Wednesday 2

Waning Gibbous 64%

23:15

09:39

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

Sun - Rise: 06:08, Set: 17:42, Transit: 11:55. Moon - Rise: 23:15, Set: 09:39. Civil Dark: 18:06 - 05:44. Nautical Dark: 18:33 - 05:16. Astro Dark: 19:01 - 04:48

Total Clouds (% Sky Obscured)

65
62
65
71
82
50
62
54
40
65
65
6
1
1
0
2
3
7
5
3
1
3
21
20

Low Clouds (% Sky Obscured)

27
23
35
36
30
36
31
22
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

41
6
4
2
2
0
22
54
4
1
0
1
1
0
0
0
0
0
0
0
0
1
3
18

High Clouds (% Sky Obscured)

6
45
40
46
63
21
60
50
40
57
50
5
1
1
0
2
2
5
4
3
1
2
21
11

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
1
1
0
0
0
3
16
31
35
34
26
26
26
26
26
26
26
26
26
26
26
26

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
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
2
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)

4
2
3
4
5
4
4
4
4
3
3
3
5
9
12
13
13
15
14
13
13
12
8
10

Chance of Frost

Temperature (°C)

20
20
19
19
18
18
18
18
18
18
18
19
24
30
33
35
36
37
37
36
33
30
28
27

Feels Like (°C)

23
22
22
21
20
20
21
19
18
18
19
21
25
28
30
32
34
33
34
33
30
28
27
25

Dew Point (°C)

18
17
17
17
16
16
16
16
16
16
14
12
9
6
5
5
5
4
4
5
9
15
14
7

Relative Humidity (%)

85
85
86
88
88
88
89
89
86
85
76
60
39
21
17
15
13
13
12
14
23
41
42
27

Pressure (mb)

1019
1019
1018
1017
1016
1015
1013
1012
1011
1010
1010
1010
1010
1009
1008
1007
1006
1004
1003
1002
1001
1001
1002
1003

Ozone (du)

289
289
288
288
289
289
286
285
285
285
285
286
286
287
288
289
287
286
286
286
285
284
286
286

Thursday 3

Waning Gibbous 52%

00:24

10:31

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
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 06:06, Set: 17:42, Transit: 11:54. Moon - Rise: 00:24, Set: 10:31. Civil Dark: 18:06 - 05:43. Nautical Dark: 18:34 - 05:15. Astro Dark: 19:02 - 04:47

Total Clouds (% Sky Obscured)

50
44
68
98
94
95
98
97
96
97
97
99
99
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

10
21
31
57
51
56
68
68
74
88
84
87
82
84
82
84
82
92
95
97
100
100
99
98

Medium Clouds (% Sky Obscured)

43
1
2
1
5
5
28
70
87
84
77
77
69
69
63
69
48
31
34
33
34
39
47
57

High Clouds (% Sky Obscured)

20
43
61
60
88
92
85
68
53
62
74
88
93
97
100
100
100
100
85
70
50
54
67
73

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
7
9
6
9
9
9
9
9
9
5
6
6
6
4
6
3
2

Fog (%)

26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26

Precipitation Type

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

Precipitation Probability (%)

2
5
1
6
5
2
25
35
37
42
40
36
32
39
36
50
67
57
74
80
80
81
95
89

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0.3
0.4
0.5
0.5
1
0.6

Wind Speed/Direction (mph)

15
22
19
19
19
19
18
18
16
14
13
12
12
12
12
12
14
16
17
16
16
15
13
13

Chance of Frost

Temperature (°C)

25
22
22
21
22
21
21
21
21
20
21
21
21
22
22
22
22
22
21
21
20
20
20
19

Feels Like (°C)

22
18
19
17
17
17
18
18
17
18
19
20
21
21
21
21
20
20
19
19
18
17
18
17

Dew Point (°C)

11
17
15
14
15
16
17
18
18
18
18
18
18
18
18
19
19
20
19
19
18
18
18
18

Relative Humidity (%)

42
71
64
65
64
70
77
82
84
84
82
81
80
78
79
80
83
88
89
89
88
88
89
91

Pressure (mb)

1006
1008
1009
1011
1012
1012
1013
1014
1015
1016
1016
1018
1018
1019
1019
1020
1020
1020
1020
1020
1021
1021
1022
1023

Ozone (du)

287
286
285
287
287
285
286
284
285
285
285
286
288
288
288
288
287
287
289
290
289
288
288
286

Friday 4

Third Quarter 40%

01:31

11:32

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
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 06:05, Set: 17:43, Transit: 11:54. Moon - Rise: 01:31, Set: 11:32. Civil Dark: 18:07 - 05:41. Nautical Dark: 18:34 - 05:14. Astro Dark: 19:02 - 04:46

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
99
98
97
98
99
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

97
95
93
93
93
93
92
92
91
89
90
92
50
50
50
56
62
69
78
86
92
91
89
88

Medium Clouds (% Sky Obscured)

51
44
34
37
38
38
33
28
22
27
27
85
93
92
92
63
34
3
13
22
31
34
39
40

High Clouds (% Sky Obscured)

82
90
100
100
100
100
95
64
57
91
94
100
95
95
92
83
74
65
67
65
63
65
72
71

ISS Passover

Visibility (miles)

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

Fog (%)

26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26

Precipitation Type

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

Precipitation Probability (%)

91
69
72
68
55
50
52
62
47
45
43
40
39
38
42
42
41
34
37
34
19
84
57
47

Precipitation Amount (mm)

0.8
0.4
0.4
0.4
0.2
0
0.2
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0.6
0
0

Wind Speed/Direction (mph)

11
12
12
12
10
9
9
8
7
6
5
5
5
3
3
4
5
6
6
6
6
7
5
4

Chance of Frost

Temperature (°C)

19
19
19
20
20
20
20
20
20
20
20
21
21
20
21
22
22
22
22
22
21
21
21
20

Feels Like (°C)

17
17
18
19
19
19
18
18
19
19
20
20
20
20
21
21
21
21
22
21
21
21
21
21

Dew Point (°C)

18
17
17
18
18
18
18
18
18
18
18
18
18
18
18
19
19
19
18
18
18
18
18
18

Relative Humidity (%)

89
88
88
88
88
89
89
88
88
88
86
86
86
85
82
81
81
80
79
81
83
84
86
88

Pressure (mb)

1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1025
1025
1025
1024
1024
1024
1023
1022
1022
1022
1022
1022
1022

Ozone (du)

286
287
289
289
287
287
287
285
285
284
285
284
284
285
285
286
286
286
286
286
287
287
288
288

Saturday 5

Waning Crescent 29%

02:32

12:39

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
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 06:04, Set: 17:43, Transit: 11:54. Moon - Rise: 02:32, Set: 12:39. Civil Dark: 18:07 - 05:40. Nautical Dark: 18:35 - 05:12. Astro Dark: 19:03 - 04:45

Total Clouds (% Sky Obscured)

100
100
100
99
98
97
98
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

90
92
93
90
87
85
72
60
49
55
61
67
69
72
75
66
67
56
55
58
62
64
73
73

Medium Clouds (% Sky Obscured)

42
44
41
50
63
70
78
85
92
91
90
89
70
58
46
58
70
82
68
55
42
45
53
58

High Clouds (% Sky Obscured)

73
82
90
79
70
63
77
89
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

8
9
9
9
9
8
8
7
7
6
7
7
8
8
9
9
9
9
9
9
9
9
9
9

Fog (%)

26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26

Precipitation Type

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

Precipitation Probability (%)

56
59
59
90
88
64
65
74
74
90
95
81
79
90
95
86
93
95
95
95
95
95
95
77

Precipitation Amount (mm)

0.2
0.2
0
0.5
0.5
0.3
0.2
0.3
0.3
0.5
0.9
0.3
0.3
0.6
0.7
0.5
0.6
1
1
1
0.8
1
0.5
0

Wind Speed/Direction (mph)

2
3
3
4
4
4
4
3
3
4
3
3
2
2
4
6
7
9
11
10
10
10
9
8

Chance of Frost

Temperature (°C)

20
20
20
20
20
20
20
19
19
19
19
20
20
21
21
22
22
21
21
21
20
20
20
19

Feels Like (°C)

21
21
21
21
21
20
20
21
20
20
19
19
19
21
21
21
22
22
22
22
22
21
21
21

Dew Point (°C)

19
18
18
17
17
17
17
17
17
18
17
17
17
16
16
16
16
16
17
17
17
17
17
17

Relative Humidity (%)

91
89
89
86
86
84
82
85
88
91
86
85
81
76
72
67
69
73
75
79
81
85
85
86

Pressure (mb)

1023
1022
1022
1022
1022
1021
1021
1021
1020
1020
1020
1021
1021
1021
1021
1020
1020
1020
1019
1020
1021
1022
1023
1024

Ozone (du)

289
290
291
292
293
294
295
294
293
292
295
297
300
299
298
296
299
301
303
300
298
296
291
286

Sunday 6

Waning Crescent 19%

03:26

13:49

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

Sun - Rise: 06:03, Set: 17:44, Transit: 11:53. Moon - Rise: 03:26, Set: 13:49. Civil Dark: 18:08 - 05:39. Nautical Dark: 18:35 - 05:11. Astro Dark: 19:03 - 04:44

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

79
85
91
94
97
100
87
74
62
74
85
95
97
98
100
100
100
100

Medium Clouds (% Sky Obscured)

71
85
99
99
100
100
100
99
99
98
98
97
91
87
83
80
74
66

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
75
51
27
29
31
33

ISS Passover

Visibility (miles)

9
7
5
3
2
2
2
4
7
9
8
6
4
4
3
3
3
3

Fog (%)

26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26

Precipitation Type

Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

95
95
95
95
95
95
95
95
93
87
84
73
77
74
76
80
76
75

Precipitation Amount (mm)

0.7
0.7
0.7
0.6
0.6
1.3
1
0.7
0.5
0.4
0.5
0.4
0.5
0.4
0.4
0.5
0.4
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
19
18
17
18
18
18
18
17
17
17
17
17
17
18
18
18
18

Feels Like (°C)

22
19
18
18
18
17
18
14
14
14
14
14
14
14
14
14
14
15

Dew Point (°C)

17
17
17
16
16
16
16
15
14
12
13
13
13
13
14
14
14
14

Relative Humidity (%)

86
88
90
92
90
92
92
85
78
72
73
74
76
77
78
78
77
77

Pressure (mb)

1025
1026
1026
1027
1028
1028
1029
1029
1030
1031
1032
1033
1034
1034
1035
1035
1035
1035

Ozone (du)

281
280
279
277
278
278
279
279
279
280
281
282
283
283
283
283
284
284

Forecast for Durban Central, eThekwini Metropolitan Municipality, South Africa (-29.86,31.02)

Generated: 31/08/26 20:18:36. Forecast: 31/08/26 to 06/09/26. Timezone: UTC+2.00