Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 14

Waning Crescent 30%

No Rise

14:46

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
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 08:01, Set: 16:51, Transit: 12:26. Moon - Rise: No Rise, Set: 14:46. Civil Dark: 17:28 - 07:24. Nautical Dark: 18:09 - 06:43. Astro Dark: 18:49 - 06:03

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

77
86
81
72
73
80
77
85
84
79
94
89
90
95
94
86
91
98
95
89
88
95
100
100

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
97
100
100
100
100
100
100

High Clouds (% Sky Obscured)

87
96
100
100
100
100
100
100
100
100
91
100
100
100
100
100
100
100
100
100
100
68
100
83

ISS Passover

Visibility (miles)

9
9
9
9
9
4
4
3
4
3
4
8
4
9
6
9
9
6
9
4
6
9
9
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
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
Very Light Rain

Precipitation Probability (%)

95
95
75
86
95
95
95
95
95
95
95
95
95
66
68
71
79
70
79
83
63
42
55
66

Precipitation Amount (mm)

0.4
0.6
0.3
0.3
0.6
1.1
1.5
1.5
1.8
1.1
0.7
0.6
0.8
0.2
0.2
0.4
0.4
0.4
0.5
0.6
0.2
0
0
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
92
92
92
92
93
95
95
95
95
93
92
90
93
95
95
93
93
93
91
91
91
90
90

Pressure (mb)

1008
1008
1007
1007
1006
1006
1006
1006
1006
1006
1006
1006
1006
1005
1006
1006
1006
1007
1007
1007
1007
1007
1008
1008

Ozone (du)

282
279
279
280
280
279
280
278
276
276
278
277
278
279
280
282
284
287
288
288
289
289
288
287

Saturday 15

Waning Crescent 21%

02:44

14:56

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
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 08:03, Set: 16:49, Transit: 12:26. Moon - Rise: 02:44, Set: 14:56. Civil Dark: 17:27 - 07:26. Nautical Dark: 18:08 - 06:44. Astro Dark: 18:48 - 06:04

Total Clouds (% Sky Obscured)

100
100
100
98
96
98
98
99
98
96
98
100
92
95
80
71
84
93
96
93
95
97
93
78

Low Clouds (% Sky Obscured)

100
99
100
94
90
94
95
97
95
88
90
99
84
89
69
65
72
87
92
89
90
93
86
75

Medium Clouds (% Sky Obscured)

80
62
67
71
50
73
84
80
78
66
92
76
63
59
50
49
55
42
48
29
19
52
37
19

High Clouds (% Sky Obscured)

70
28
36
25
18
12
1
0
0
0
0
0
5
5
10
10
10
3
4
1
0
0
0
3

ISS Passover

Visibility (miles)

6
9
9
9
9
6
7
8
7
8
9
9
8
9
8
8
9
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
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

48
33
37
41
58
65
61
62
58
49
38
34
36
36
35
31
36
34
19
24
17
23
11
10

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

8
8
8
8
8
9
9
9
9
11
11
12
11
11
11
11
10
10
9
9
9
9
9
9

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
90
90
90
90
91
91
91
93
93
91
92
93
93
93
95
95
93
93
95
93
93
95
93

Pressure (mb)

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

Ozone (du)

286
285
282
282
283
283
283
282
284
284
285
285
285
285
284
283
282
284
283
283
285
287
287
288

Sunday 16

Waning Crescent 13%

03:56

15:05

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
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 08:05, Set: 16:48, Transit: 12:26. Moon - Rise: 03:56, Set: 15:05. Civil Dark: 17:26 - 07:27. Nautical Dark: 18:07 - 06:46. Astro Dark: 18:47 - 06:06

Total Clouds (% Sky Obscured)

90
96
97
88
83
97
98
99
100
100
93
98
88
94
81
88
61
60
75
71
75
81
83
90

Low Clouds (% Sky Obscured)

86
92
93
88
82
84
94
93
100
100
87
92
72
64
62
55
32
41
55
60
68
76
82
89

Medium Clouds (% Sky Obscured)

27
31
29
21
15
20
67
94
62
57
36
25
31
32
28
30
31
22
11
2
2
0
0
12

High Clouds (% Sky Obscured)

3
3
1
0
8
80
58
1
1
2
8
36
7
4
11
43
8
3
1
0
0
0
3
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
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

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 (%)

13
20
19
19
26
23
12
19
11
16
14
4
4
5
5
4
3
3
11
9
4
11
29
41

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
6
6
6
6
6
6
6
6
5
6
5
6
5
5
5
6
7
6
4
4
4
4

Dew Point (°C)

8
8
8
8
7
7
7
7
7
7
7
7
6
6
5
3
2
3
3
3
2
1
1
2

Relative Humidity (%)

95
95
95
95
93
93
93
93
90
88
88
87
85
84
78
69
69
73
75
75
71
67
67
71

Pressure (mb)

1010
1009
1009
1009
1009
1009
1009
1010
1010
1010
1010
1010
1010
1010
1011
1011
1012
1012
1012
1012
1012
1012
1012
1012

Ozone (du)

288
289
290
290
289
290
291
291
291
290
291
292
290
293
301
303
301
298
296
282
271
270
271
278

Monday 17

Waning Crescent 7%

05:08

15:16

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
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 08:07, Set: 16:47, Transit: 12:27. Moon - Rise: 05:08, Set: 15:16. Civil Dark: 17:24 - 07:29. Nautical Dark: 18:06 - 06:47. Astro Dark: 18:46 - 06:07

Total Clouds (% Sky Obscured)

95
97
94
88
82
78
76
73
69
62
45
42
34
22
32
41
53
58
63
70
79
89
82
94

Low Clouds (% Sky Obscured)

94
96
90
80
69
68
65
67
59
50
40
28
13
0
15
30
45
48
50
52
66
79
82
90

Medium Clouds (% Sky Obscured)

25
37
27
19
17
12
9
4
3
2
0
0
0
0
0
0
0
3
6
8
18
32
47
49

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
10
15
37

ISS Passover

Visibility (miles)

9
9
8
9
8
9
5
7
9
8
9
9
8
9
8
7
7
7
7
7
7
6
7
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
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

29
30
40
48
52
55
56
42
42
31
32
28
34
33
41
42
47
49
43
45
49
48
48
52

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

6
7
9
11
10
12
12
14
14
15
15
15
14
14
13
12
12
11
10
9
7
6
4
4

Chance of Frost

Temperature (°C)

7
7
8
8
8
8
8
8
8
8
8
9
9
9
9
8
8
8
8
7
7
7
7
7

Feels Like (°C)

4
4
4
3
4
3
3
2
2
2
2
4
3
4
3
3
3
3
3
3
4
4
5
4

Dew Point (°C)

3
3
1
0
1
1
0
1
0
-1
-1
-2
-2
-1
-0
-1
-1
0
1
1
1
1
2
2

Relative Humidity (%)

78
73
64
57
61
63
59
63
58
53
53
47
48
51
54
54
55
58
61
62
64
66
67
70

Pressure (mb)

1011
1011
1011
1012
1012
1012
1012
1013
1013
1014
1014
1015
1015
1015
1016
1016
1017
1017
1018
1018
1018
1018
1018
1018

Ozone (du)

288
295
300
305
310
312
308
301
297
295
292
286
280
277
276
276
278
279
281
280
281
283
284
286

Tuesday 18

Waning Crescent 3%

06:21

15:28

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
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 08:08, Set: 16:45, Transit: 12:27. Moon - Rise: 06:21, Set: 15:28. Civil Dark: 17:23 - 07:30. Nautical Dark: 18:05 - 06:49. Astro Dark: 18:45 - 06:09

Total Clouds (% Sky Obscured)

84
99
99
100
100
99
98
97
97
98
99
99
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

84
95
75
57
38
44
52
58
60
61
62
59
57
54
64
74
84
82
81
79
77
76
75
75

Medium Clouds (% Sky Obscured)

48
46
52
69
79
69
67
87
93
95
97
98
99
100
99
97
96
72
49
38
67
86
100
100

High Clouds (% Sky Obscured)

58
80
87
93
100
75
51
26
42
58
74
82
91
100
97
94
91
94
97
100
94
88
80
79

ISS Passover

Visibility (miles)

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

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
Very Light Rain
Light Rain
Light Rain
Very Light Rain
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

Precipitation Probability (%)

58
64
67
64
58
52
50
42
46
47
36
43
36
18
25
30
35
48
57
64
77
82
83
81

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
4
4
4
4
4
4
4
4
3
3
3
3
3
2
2
2
2
1
1
1
2
2
2

Dew Point (°C)

2
2
2
2
2
2
2
2
3
4
2
1
1
0
-0
-1
-1
-2
-1
-1
-1
1
2
3

Relative Humidity (%)

72
72
72
72
74
72
74
74
71
77
68
63
63
63
62
60
60
60
61
62
64
68
74
79

Pressure (mb)

1018
1018
1018
1018
1017
1017
1017
1017
1017
1017
1016
1016
1015
1015
1014
1014
1014
1013
1013
1013
1013
1012
1012
1011

Ozone (du)

286
282
281
281
276
278
279
281
283
286
285
287
289
292
295
294
293
292
290
289
287
288
288
289

Wednesday 19

Waning Crescent 1%

07:35

15:45

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
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 08:10, Set: 16:44, Transit: 12:27. Moon - Rise: 07:35, Set: 15:45. Civil Dark: 17:22 - 07:32. Nautical Dark: 18:04 - 06:50. Astro Dark: 18:44 - 06:10

Total Clouds (% Sky Obscured)

100
100
100
100
100
79
59
38
56
78
100
100
100
100
100
100
100
100
100
100
100
100
100
96

Low Clouds (% Sky Obscured)

75
75
76
77
78
59
42
23
29
34
41
51
60
69
79
88
95
95
96
97
91
86
80
74

Medium Clouds (% Sky Obscured)

100
100
100
100
100
79
59
38
56
78
100
100
100
100
100
100
100
100
100
100
100
100
100
96

High Clouds (% Sky Obscured)

77
78
62
51
35
55
55
38
56
72
85
86
88
95
95
100
95
100
100
97
70
45
20
45

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

80
80
75
70
64
60
50
28
38
42
43
47
54
61
72
82
91
93
94
95
86
79
74
67

Precipitation Amount (mm)

0.5
0.5
0.5
0.4
0.3
0.3
0.2
0
0
0
0
0
0
0.3
0.4
0.5
0.6
0.7
0.7
0.7
0.6
0.5
0.4
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
2
3
3
2
3
3
2
2
2
3
3
4
3
3
3
3
2
2
2
2
2
2
1

Dew Point (°C)

2
1
1
0
-1
-1
-1
-1
-1
-1
-0
0
1
1
2
2
2
2
2
2
2
2
2
2

Relative Humidity (%)

76
74
71
67
65
62
61
61
61
61
63
63
69
75
83
83
83
85
86
88
89
89
89
89

Pressure (mb)

1011
1011
1010
1010
1010
1009
1009
1009
1009
1009
1009
1008
1008
1008
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007

Ozone (du)

291
293
295
298
302
305
305
305
305
312
319
325
328
330
332
333
334
335
330
326
321
321
321
321

Thursday 20

New Moon 0%

08:49

16:07

Sun - Rise: 08:12, Set: 16:43, Transit: 12:27. Moon - Rise: 08:49, Set: 16:07. Civil Dark: 17:21 - 07:33. Nautical Dark: 18:03 - 06:52. Astro Dark: 18:43 - 06:11

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 14/11/25 02:35:21. Forecast: 14/11/25 to 20/11/25. Timezone: UTC+1.00