Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 5

Waning Crescent 21%

02:18

17:22

12 Bad
13 Bad
14 Bad
15 OK
16 OK
17 OK
18 OK
19 OK
20 OK
21 OK
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

Sun - Rise: 07:52, Set: 19:09, Transit: 13:30. Moon - Rise: 02:18, Set: 17:22. Civil Dark: 19:43 - 07:18. Nautical Dark: 20:22 - 06:39. Astro Dark: 21:02 - 05:59

Total Clouds (% Sky Obscured)

89
86
84
35
34
35
38
44
39
29
56
81
91
92
91
91
94
94
92
87
93
95
84
73

Low Clouds (% Sky Obscured)

14
15
15
18
19
20
23
25
24
16
49
78
77
77
85
84
85
82
85
87
88
85
46
26

Medium Clouds (% Sky Obscured)

2
2
2
0
0
0
0
0
0
0
12
27
39
42
40
36
38
40
33
22
39
54
61
46

High Clouds (% Sky Obscured)

70
60
6
6
9
11
18
21
14
8
5
6
12
6
4
16
35
32
15
8
8
21
7
8

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
10
13
52
97
100
21

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
2
2
12
4
5
16
14
21
20
15
3
4
13
15

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

18
19
18
19
19
19
18
18
17
16
16
15
15
14
14
14
15
15
15
15
15
15
17
19

Dew Point (°C)

11
12
12
12
13
13
14
14
14
13
13
12
12
12
12
12
13
13
13
13
13
13
14
14

Relative Humidity (%)

61
58
59
60
63
67
74
83
87
89
90
89
89
86
86
84
86
85
85
85
85
86
82
74

Pressure (mb)

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

Ozone (du)

271
270
271
270
270
269
269
268
268
267
267
267
267
267
267
267
268
268
267
268
270
272
274
275

Tuesday 6

Waning Crescent 12%

03:44

17:39

12 Bad
13 Bad
14 Bad
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

Sun - Rise: 07:53, Set: 19:07, Transit: 13:29. Moon - Rise: 03:44, Set: 17:39. Civil Dark: 19:41 - 07:20. Nautical Dark: 20:20 - 06:41. Astro Dark: 21:00 - 06:01

Total Clouds (% Sky Obscured)

68
67
75
89
90
93
96
97
100
97
96
91
97
100
100
100
100
100
100
100
100
100
94
63

Low Clouds (% Sky Obscured)

18
22
17
19
19
14
11
5
11
16
19
22
25
35
36
31
30
25
24
24
16
11
10
0

Medium Clouds (% Sky Obscured)

46
36
58
79
84
89
94
95
100
93
91
77
90
100
95
100
100
84
47
47
83
56
49
20

High Clouds (% Sky Obscured)

7
7
7
10
6
8
5
39
45
39
44
33
59
100
100
100
100
100
100
100
100
99
76
63

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 (%)

1
0
0
1
2
3
4
3
3
13
14
20
95
97
95
88
86
94
93
98
100
100
94
25

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 (%)

6
14
4
3
2
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
6
6
6
6
5
5
5
4
4
4
4
4
4
4
4
4
4
4
4
4
4
5
6

Chance of Frost

Temperature (°C)

19
21
21
21
21
20
20
18
17
16
15
15
15
15
15
14
14
14
14
13
13
13
15
16

Feels Like (°C)

20
22
22
22
21
20
19
18
17
16
15
15
14
14
14
14
14
14
13
13
12
13
14
15

Dew Point (°C)

13
13
13
13
13
12
13
14
13
13
13
13
13
13
13
13
13
13
12
12
12
11
11
11

Relative Humidity (%)

68
63
60
57
58
60
67
74
79
81
83
85
86
89
89
90
90
90
90
92
92
87
78
69

Pressure (mb)

1020
1019
1019
1018
1018
1018
1018
1018
1018
1017
1017
1017
1017
1017
1016
1016
1015
1015
1014
1014
1013
1013
1013
1013

Ozone (du)

276
277
277
278
279
281
282
282
283
284
283
284
285
286
287
287
287
287
288
287
288
291
294
295

Wednesday 7

Waning Crescent 6%

05:07

17:53

12 Bad
13 Bad
14 Bad
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

Sun - Rise: 07:55, Set: 19:05, Transit: 13:29. Moon - Rise: 05:07, Set: 17:53. Civil Dark: 19:39 - 07:21. Nautical Dark: 20:18 - 06:42. Astro Dark: 20:58 - 06:03

Total Clouds (% Sky Obscured)

75
86
98
100
100
100
100
100
100
100
100
100
100
100
100
100
94
95
94
59
66
72
78
80

Low Clouds (% Sky Obscured)

0
4
12
0
19
26
28
76
84
92
94
88
90
90
93
89
93
93
86
59
66
72
55
79

Medium Clouds (% Sky Obscured)

39
40
79
100
100
100
99
100
100
100
100
100
99
100
100
81
90
92
34
0
0
1
55
55

High Clouds (% Sky Obscured)

45
54
76
96
100
100
100
100
100
100
100
97
66
94
100
71
50
41
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
7
5
4
5
2
4
4
4
7
7
4
5

Fog (%)

2
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
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
Very Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

1
1
2
4
6
18
28
38
83
77
77
77
80
83
81
95
95
85
73
68
55
69
71
68

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

5
5
6
6
5
4
6
6
4
7
6
6
7
9
10
15
12
13
12
13
11
11
13
13

Chance of Frost

Temperature (°C)

18
20
21
21
20
19
18
17
16
15
14
14
14
14
14
13
13
12
12
12
12
12
12
13

Feels Like (°C)

17
19
19
19
19
19
17
16
16
14
14
13
13
12
12
9
10
9
9
8
8
9
8
9

Dew Point (°C)

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

Relative Humidity (%)

63
55
51
49
49
57
64
69
73
79
82
80
83
87
92
87
89
86
81
80
79
69
73
74

Pressure (mb)

1012
1011
1011
1010
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1010
1010
1011
1012
1012
1013
1014

Ozone (du)

295
295
294
295
296
296
297
297
297
295
298
306
307
307
306
310
314
319
323
324
325
328
332
334

Thursday 8

Waning Crescent 6%

06:27

18:05

12 Bad
13 Bad
14 Bad
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

Sun - Rise: 07:57, Set: 19:03, Transit: 13:29. Moon - Rise: 06:27, Set: 18:05. Civil Dark: 19:36 - 07:23. Nautical Dark: 20:16 - 06:44. Astro Dark: 20:55 - 06:04

Total Clouds (% Sky Obscured)

73
80
54
43
40
50
44
48
56
61
68
82
76
68
73
78
82
88
94
100
100
100
100
100

Low Clouds (% Sky Obscured)

26
58
28
29
29
28
29
42
41
38
43
79
58
46
27
25
30
33
62
57
95
96
97
97

Medium Clouds (% Sky Obscured)

45
53
16
3
1
16
5
0
8
16
27
20
11
4
8
13
18
81
91
99
99
99
99
99

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
2
0
2
31
56
55
50
45
39
44
48
63
81
100
100

ISS Passover

Visibility (miles)

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

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

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

Precipitation Probability (%)

67
63
63
54
56
69
50
38
47
37
35
58
50
28
22
13
6
5
19
30
61
87
95
95

Precipitation Amount (mm)

0.4
0.2
0.3
0
0.2
0.5
0.2
0
0
0
0
0.4
0.2
0
0
0
0
0
0
0
0.3
0.5
0.8
0.8

Wind Speed/Direction (mph)

11
15
15
15
14
14
13
13
11
10
10
9
9
7
8
7
6
6
5
6
10
10
12
13

Chance of Frost

Temperature (°C)

13
14
14
14
14
14
13
12
12
11
11
11
11
11
11
10
10
10
10
11
11
11
10
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

66
67
64
61
58
57
61
63
65
63
65
66
67
66
56
59
60
58
63
66
69
81
87
93

Pressure (mb)

1015
1016
1016
1017
1017
1017
1018
1018
1019
1019
1020
1020
1020
1020
1020
1020
1019
1019
1018
1017
1016
1016
1015
1014

Ozone (du)

330
323
317
314
313
313
310
307
304
301
298
295
293
291
289
286
284
283
280
278
276
277
276
276

Friday 9

Waning Crescent 2%

07:46

18:16

12 Bad
13 Bad
14 Bad
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

Sun - Rise: 07:59, Set: 19:00, Transit: 13:29. Moon - Rise: 07:46, Set: 18:16. Civil Dark: 19:34 - 07:25. Nautical Dark: 20:13 - 06:46. Astro Dark: 20:53 - 06:06

Total Clouds (% Sky Obscured)

100
100
98
95
93
91
88
65
84
80
42
38
42
84
83
84
87
92
94
91
89
86
84
85

Low Clouds (% Sky Obscured)

97
96
95
94
93
91
85
31
22
14
18
12
18
74
79
83
87
90
93
91
81
68
54
64

Medium Clouds (% Sky Obscured)

100
100
96
61
37
30
44
36
77
74
24
22
26
30
31
32
34
46
58
65
55
49
44
48

High Clouds (% Sky Obscured)

100
100
77
50
4
14
0
1
25
4
0
0
1
2
3
5
6
24
42
46
32
20
3
11

ISS Passover

Visibility (miles)

4
1
8
7
9
7
5
4
5
5
7
9
9
9
9
9
9
9
9
9
9
8
8
7

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

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

Precipitation Probability (%)

95
95
95
83
87
87
95
95
95
94
82
69
47
15
28
22
15
23
29
33
43
46
50
52

Precipitation Amount (mm)

1.5
1.9
0.6
0.5
0.6
0.5
0.7
0.8
0.9
0.6
0.4
0.3
0
0
0
0
0
0
0
0
0
0
0
0.2

Wind Speed/Direction (mph)

14
14
15
15
15
15
14
14
14
13
13
11
11
9
9
9
9
9
10
10
11
12
13
15

Chance of Frost

Temperature (°C)

11
12
14
15
16
16
16
16
16
16
16
15
14
14
13
13
13
13
13
13
13
13
13
14

Feels Like (°C)

6
7
11
11
12
13
14
14
13
13
13
13
13
13
12
12
11
11
11
11
11
10
10
10

Dew Point (°C)

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

Relative Humidity (%)

91
95
92
90
89
89
89
92
89
87
87
84
79
78
75
71
68
64
66
69
71
69
65
63

Pressure (mb)

1013
1012
1011
1011
1010
1010
1010
1010
1010
1010
1011
1011
1011
1011
1011
1012
1012
1012
1012
1012
1012
1013
1013
1014

Ozone (du)

275
274
276
279
280
281
279
278
279
283
287
287
287
289
290
292
293
295
298
300
303
304
305
306

Saturday 10

New Moon 0%

09:05

18:28

12 Bad
13 Bad
14 Bad
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

Sun - Rise: 08:00, Set: 18:58, Transit: 13:28. Moon - Rise: 09:05, Set: 18:28. Civil Dark: 19:32 - 07:26. Nautical Dark: 20:11 - 06:47. Astro Dark: 20:51 - 06:08

Total Clouds (% Sky Obscured)

85
86
90
95
99
99
100
100
97
94
91
90
90
91
88
87
85
87
89
91
85
79
72
77

Low Clouds (% Sky Obscured)

72
79
68
59
52
63
73
85
80
76
72
76
79
82
82
82
81
82
83
84
76
66
54
64

Medium Clouds (% Sky Obscured)

52
55
70
83
97
98
99
100
97
94
91
90
86
85
66
46
31
29
26
18
18
16
17
13

High Clouds (% Sky Obscured)

19
29
31
30
28
19
10
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
8

ISS Passover

Visibility (miles)

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

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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

51
49
48
48
51
71
85
95
95
95
95
95
89
81
77
70
62
58
55
56
62
69
75
72

Precipitation Amount (mm)

0
0
0
0
0
0.4
0.7
0.8
1
1
0.9
0.9
0.7
0.6
0.6
0.5
0.4
0.3
0.3
0.3
0.3
0.4
0.4
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
14
15
14
14
14
13
13
12
12
12
12
12
12
12
12
12
13
12
12
12
13
13
14

Feels Like (°C)

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

Dew Point (°C)

7
6
6
6
6
6
6
6
7
7
7
7
7
7
8
7
7
6
6
6
7
7
7
7

Relative Humidity (%)

60
57
55
56
57
58
60
64
67
69
69
71
71
72
73
70
69
65
66
66
69
66
65
63

Pressure (mb)

1014
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014

Ozone (du)

307
307
307
310
313
315
316
318
319
319
319
319
318
318
317
316
316
315
315
315
315
314
314
313

Sunday 11

Waxing Crescent 1%

10:24

18:41

12 Bad
13 Bad
14 Bad
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: 08:02, Set: 18:56, Transit: 13:28. Moon - Rise: 10:24, Set: 18:41. Civil Dark: 19:30 - 07:28. Nautical Dark: 20:09 - 06:49. Astro Dark: 20:48 - 06:10

Total Clouds (% Sky Obscured)

86
97
94
91
88
84
81
78
86
90
95
89
85
88
81
71
66
54
41
29

Low Clouds (% Sky Obscured)

74
84
64
43
25
30
36
40
50
61
75
64
50
37
32
26
19
21
23
28

Medium Clouds (% Sky Obscured)

12
12
23
32
39
47
60
70
77
86
92
86
81
80
74
71
66
44
22
3

High Clouds (% Sky Obscured)

17
26
41
63
85
84
80
65
42
24
6
11
17
27
20
11
2
1
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Type

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

Precipitation Probability (%)

67
60
57
52
47
49
48
46
53
66
82
66
47
30
32
31
17
22
28
29

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

13
14
14
14
14
13
12
11
9
9
8
8
8
7
6
6
6
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
10
10
11
10
11
10
10
9
8
9
9
9
9
8
8
8
9
9
9

Dew Point (°C)

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

Relative Humidity (%)

61
60
58
62
64
69
68
68
66
72
77
83
77
73
70
68
70
70
71
72

Pressure (mb)

1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1016
1016

Ozone (du)

313
312
312
311
310
309
309
309
308
309
310
311
313
314
316
317
318
319
316
312

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

Generated: 05/10/26 12:19:52. Forecast: 05/10/26 to 11/10/26. Timezone: UTC+2.00