Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 2

Waning Gibbous 80%

22:40

11:44

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 OK
11 OK
12 OK
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:07, Set: 21:30, Transit: 13:48. Moon - Rise: 22:40, Set: 11:44. Civil Dark: 22:11 - 05:26. Nautical Dark: 23:07 - 04:31. Astro Dark: 00:25 - 03:15

Total Clouds (% Sky Obscured)

77
80
60
51
96
94
92
93
94
100
100
100
100
87
84
88
73
39
39
37
56
39
64
62

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
0
0
0

Medium Clouds (% Sky Obscured)

13
16
17
12
5
3
7
25
25
25
22
24
24
72
29
25
15
17
17
16
22
16
23
15

High Clouds (% Sky Obscured)

55
8
6
23
94
93
81
93
93
100
100
100
100
69
56
46
35
1
0
1
22
12
27
40

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
5
21
24
6
5
1
1
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)

11
10
12
14
15
14
13
12
12
12
11
11
10
10
9
9
9
9
9
9
8
6
4
4

Chance of Frost

Temperature (°C)

28
28
27
26
23
21
21
20
21
20
20
19
19
19
19
19
20
23
25
28
30
32
34
35

Feels Like (°C)

25
26
25
23
20
17
18
17
17
17
16
16
16
15
16
17
18
20
25
29
31
32
33
34

Dew Point (°C)

4
4
4
7
9
10
10
8
7
7
7
7
8
7
8
9
10
11
12
12
13
11
10
9

Relative Humidity (%)

21
21
22
31
41
47
50
43
41
42
44
45
47
47
49
51
51
48
43
37
33
27
23
20

Pressure (mb)

1017
1016
1015
1015
1015
1015
1015
1015
1015
1014
1014
1013
1013
1012
1012
1012
1012
1012
1012
1011
1011
1010
1009
1009

Ozone (du)

324
324
323
323
322
321
320
319
318
316
315
318
318
319
321
324
328
328
328
328
328
327
326
325

Monday 3

Waning Gibbous 71%

22:51

13:05

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
15 Bad
16 Bad

Sun - Rise: 06:08, Set: 21:29, Transit: 13:48. Moon - Rise: 22:51, Set: 13:05. Civil Dark: 22:09 - 05:28. Nautical Dark: 23:04 - 04:34. Astro Dark: 00:21 - 03:19

Total Clouds (% Sky Obscured)

86
45
34
61
94
88
93
81
65
77
65
100
100
100
92
82
73
93
67
73
77
73
68
85

Low Clouds (% Sky Obscured)

0
1
0
0
3
11
0
1
0
0
0
0
0
0
0
0
0
0
13
0
16
22
55
5

Medium Clouds (% Sky Obscured)

28
3
1
61
82
81
77
72
23
17
8
14
18
22
32
49
52
83
67
73
77
73
68
85

High Clouds (% Sky Obscured)

42
45
34
49
86
73
65
28
40
65
60
100
100
100
67
55
28
60
2
1
0
2
2
0

ISS Passover

Visibility (miles)

9
9
9
8
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
17
22
1
0
0
4
14
4
7
3
0
0
0
7
3
8
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)

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

Chance of Frost

Temperature (°C)

35
33
31
28
26
24
24
23
22
22
22
22
21
21
22
23
24
26
27
28
29
27
26
26

Feels Like (°C)

32
31
29
29
25
25
24
24
24
22
22
21
22
21
22
22
24
24
25
25
25
24
24
25

Dew Point (°C)

9
10
11
15
17
16
15
15
15
16
16
16
16
16
16
15
15
14
12
10
9
11
12
12

Relative Humidity (%)

20
24
29
45
56
61
58
61
64
68
70
70
70
72
68
61
58
46
37
31
29
37
39
40

Pressure (mb)

1008
1008
1008
1008
1009
1009
1009
1009
1009
1009
1009
1009
1008
1008
1008
1009
1009
1010
1010
1011
1011
1011
1011
1011

Ozone (du)

322
321
320
318
314
314
317
321
319
318
320
321
323
323
322
320
317
316
315
312
312
312
313
314

Tuesday 4

Waning Gibbous 60%

23:04

14:29

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

Sun - Rise: 06:10, Set: 21:27, Transit: 13:47. Moon - Rise: 23:04, Set: 14:29. Civil Dark: 22:07 - 05:30. Nautical Dark: 23:02 - 04:36. Astro Dark: 00:16 - 03:23

Total Clouds (% Sky Obscured)

52
26
6
14
8
6
8
53
64
69
64
55
80
59
52
43
62
53
55
50
52
49
35
29

Low Clouds (% Sky Obscured)

14
5
0
0
0
0
0
26
40
37
34
43
65
29
30
30
47
50
53
43
38
39
24
20

Medium Clouds (% Sky Obscured)

24
15
3
8
4
3
7
23
64
69
26
26
28
23
4
0
21
0
0
12
20
13
5
0

High Clouds (% Sky Obscured)

34
3
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
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
2
5
3
1
0
0
0
0
0
1
5
7
4
8
5
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)

10
10
10
9
5
5
6
6
5
6
7
7
7
8
8
10
12
13
14
15
15
14
16
17

Chance of Frost

Temperature (°C)

28
28
27
26
24
23
22
22
22
22
22
21
21
21
20
21
22
23
24
24
24
23
25
25

Feels Like (°C)

26
27
26
26
25
25
24
24
24
23
22
23
21
20
22
21
22
22
22
21
21
21
22
22

Dew Point (°C)

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

Relative Humidity (%)

28
31
37
42
51
60
68
74
76
73
81
85
79
75
77
69
60
55
52
54
57
57
44
42

Pressure (mb)

1011
1011
1011
1011
1011
1011
1011
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1013
1013
1014
1014
1014
1014
1015

Ozone (du)

313
311
310
309
310
308
307
307
307
307
308
308
308
308
307
307
306
307
309
309
309
309
310
310

Wednesday 5

Waning Gibbous 49%

23:21

15:57

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

Sun - Rise: 06:11, Set: 21:25, Transit: 13:47. Moon - Rise: 23:21, Set: 15:57. Civil Dark: 22:05 - 05:31. Nautical Dark: 22:59 - 04:38. Astro Dark: 00:12 - 03:27

Total Clouds (% Sky Obscured)

19
10
0
8
17
25
27
65
64
62
60
62
61
60
47
43
53
67
68
69
70
70
65
62

Low Clouds (% Sky Obscured)

12
6
0
3
8
14
14
13
13
13
14
12
17
20
23
27
32
34
42
43
48
41
38
35

Medium Clouds (% Sky Obscured)

0
0
0
3
6
8
6
6
5
8
8
7
5
2
0
0
0
0
1
2
4
17
28
40

High Clouds (% Sky Obscured)

0
0
0
2
3
4
4
35
35
30
30
25
30
30
17
22
43
64
68
69
70
70
65
62

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
0
0
0
0
0
0
0
0
0
1
0
0
2
2
2
8
8
4

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)

18
18
17
16
15
14
13
13
12
10
8
6
5
7
8
10
12
13
13
13
14
14
13
12

Chance of Frost

Temperature (°C)

24
24
23
22
21
20
19
19
19
19
19
18
17
17
18
19
19
20
20
20
21
21
21
21

Feels Like (°C)

21
20
20
19
19
18
18
19
17
18
18
17
16
16
15
16
17
18
18
18
19
18
18
18

Dew Point (°C)

11
10
10
11
12
13
14
15
14
14
13
13
12
11
10
10
9
9
8
8
8
8
8
7

Relative Humidity (%)

41
41
42
48
57
64
71
75
73
71
69
71
72
66
61
55
52
49
46
44
44
43
43
41

Pressure (mb)

1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1017
1017
1017
1018
1018
1019
1020
1020
1020
1021
1021
1021

Ozone (du)

311
312
313
312
312
312
313
315
317
318
318
318
319
321
322
323
325
332
332
333
339
341
336
331

Thursday 6

Third Quarter 37%

23:46

No Set

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
15 Bad
16 Bad

Sun - Rise: 06:13, Set: 21:23, Transit: 13:47. Moon - Rise: 23:46, Set: No Set. Civil Dark: 22:03 - 05:33. Nautical Dark: 22:56 - 04:41. Astro Dark: 00:08 - 03:31

Total Clouds (% Sky Obscured)

82
94
57
61
64
57
73
90
87
88
89
90
88
86
84
91
83
71
75
79
83
76
71
62

Low Clouds (% Sky Obscured)

38
50
57
57
59
54
48
42
36
32
32
31
31
32
32
14
14
13
12
9
5
3
2
0

Medium Clouds (% Sky Obscured)

39
42
37
43
46
48
43
37
31
27
20
18
16
14
13
4
6
9
6
5
3
13
21
30

High Clouds (% Sky Obscured)

65
45
1
0
1
2
23
50
55
60
61
64
60
53
46
91
83
71
75
79
83
76
71
62

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 (%)

15
17
10
23
19
6
18
10
1
4
3
2
9
10
5
9
7
3
10
7
1
3
4
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)

11
10
9
8
6
4
3
3
2
1
2
2
2
2
3
3
2
2
3
5
6
8
9
9

Chance of Frost

Temperature (°C)

20
20
20
19
18
17
16
16
16
15
15
15
15
15
15
16
18
19
21
22
23
24
23
23

Feels Like (°C)

19
19
19
18
18
18
17
16
15
15
15
15
15
14
14
15
16
17
18
18
19
20
24
22

Dew Point (°C)

6
6
7
8
9
10
11
11
11
11
10
10
10
10
10
10
9
8
8
7
7
7
6
7

Relative Humidity (%)

39
40
43
48
55
64
69
70
72
73
72
70
69
71
72
65
55
48
42
38
36
33
33
35

Pressure (mb)

1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1023
1023
1023
1022
1022
1022
1021

Ozone (du)

328
326
325
325
323
323
324
325
325
327
328
329
330
330
331
331
331
331
331
332
333
334
335
337

Friday 7

Waning Crescent 26%

00:22

17:24

17 Bad
18 OK
19 OK
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

Sun - Rise: 06:15, Set: 21:21, Transit: 13:47. Moon - Rise: 00:22, Set: 17:24. Civil Dark: 22:01 - 05:35. Nautical Dark: 22:54 - 04:43. Astro Dark: 00:03 - 03:35

Total Clouds (% Sky Obscured)

51
43
35
57
75
95
90
86
82
81
78
76
66
56
47
65
83
100
99
98
98
97
97
96

Low Clouds (% Sky Obscured)

1
2
3
3
3
4
10
16
23
31
37
45
35
25
16
17
19
19
19
18
17
16
15
12

Medium Clouds (% Sky Obscured)

25
21
17
16
18
20
38
51
62
53
45
36
27
19
12
37
63
89
92
94
97
95
93
92

High Clouds (% Sky Obscured)

51
26
4
28
55
80
68
57
49
33
17
1
1
2
2
38
69
100
79
62
56
63
77
83

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
2
0
1
2
0
1
1
0
3
5
8
12
12
5
15
20
23
39
41
40
48
48
49

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)

10
9
8
8
6
5
5
4
4
4
4
4
4
4
5
5
6
7
7
7
7
7
8
9

Chance of Frost

Temperature (°C)

23
22
21
21
19
18
17
16
15
15
14
14
14
14
15
15
17
19
20
21
22
23
22
22

Feels Like (°C)

21
21
21
22
18
18
18
17
17
16
13
13
14
13
14
13
14
15
15
16
15
16
21
21

Dew Point (°C)

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

Relative Humidity (%)

35
36
37
38
43
48
55
58
64
68
68
68
68
66
63
61
55
50
45
40
35
31
31
33

Pressure (mb)

1021
1021
1020
1020
1020
1020
1020
1019
1019
1019
1019
1018
1018
1018
1018
1018
1017
1017
1017
1017
1017
1016
1016
1016

Ozone (du)

338
338
338
337
340
343
346
347
347
348
348
349
349
348
348
347
347
347
348
348
348
349
350
351

Saturday 8

Waning Crescent 16%

01:16

18:43

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

Sun - Rise: 06:16, Set: 21:20, Transit: 13:47. Moon - Rise: 01:16, Set: 18:43. Civil Dark: 21:59 - 05:37. Nautical Dark: 22:51 - 04:45. Astro Dark: 23:59 - 03:39

Total Clouds (% Sky Obscured)

97
99
100
92
83
75
78
81
84
80
75
71
72
74
76
74
73
72
77
82
86

Low Clouds (% Sky Obscured)

16
20
24
38
52
65
70
76
81
77
72
67
69
70
71
68
65
62
53
45
36

Medium Clouds (% Sky Obscured)

95
98
100
90
78
63
67
68
69
51
31
14
17
17
22
23
24
24
30
36
42

High Clouds (% Sky Obscured)

89
95
100
88
77
65
65
60
60
38
21
4
3
1
0
1
1
2
24
44
65

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

Fog (%)

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
Very Light Rain
None
Very 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

Precipitation Probability (%)

56
55
57
68
72
66
68
57
34
39
37
21
31
29
12
27
28
10
29
30
22

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

11
10
8
6
5
5
5
4
4
5
4
4
4
4
4
4
5
5
5
4
4

Chance of Frost

Temperature (°C)

22
21
20
19
18
17
16
16
15
15
15
15
15
15
15
16
17
18
19
20
21

Feels Like (°C)

20
20
19
19
16
16
17
17
17
17
13
14
15
15
14
14
16
15
15
16
16

Dew Point (°C)

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

Relative Humidity (%)

33
36
39
43
48
53
59
66
74
83
84
84
86
82
79
77
65
55
47
41
37

Pressure (mb)

1016
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016

Ozone (du)

351
352
352
352
352
352
353
354
355
357
354
350
347
346
344
343
344
345
346
348
349

Forecast for Leiden, Gemeente Leiden, Netherlands (52.16,4.50)

Generated: 02/08/26 17:41:31. Forecast: 02/08/26 to 08/08/26. Timezone: UTC+2.00