Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 19

Waxing Crescent 5%

08:37

20:48

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: 07:45, Set: 18:03, Transit: 12:55. Moon - Rise: 08:37, Set: 20:48. Civil Dark: 18:38 - 07:11. Nautical Dark: 19:17 - 06:32. Astro Dark: 19:56 - 05:52

Total Clouds (% Sky Obscured)

100
100
90
93
97
98
87
87
72
69
71
49
70
73
95
87
94
93
98
100
100
100
100
100

Low Clouds (% Sky Obscured)

76
76
83
77
72
65
52
48
43
45
50
35
45
61
47
53
76
85
96
90
100
80
69
71

Medium Clouds (% Sky Obscured)

81
32
36
89
96
97
73
43
31
24
24
39
42
73
95
87
93
87
96
40
100
100
100
100

High Clouds (% Sky Obscured)

83
5
3
0
1
7
5
1
2
2
1
0
0
0
6
3
23
48
66
100
100
100
100
100

ISS Passover

Visibility (miles)

0
2
2
2
0
0
2
5
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

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
21
14
3
8
13
23
20
14
1
0
0
0
0
1
0
2
7
9
22
15
11
0
0

Precipitation Amount (mm)

0.6
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
17
15
14
14
13
10
10
10
9
10
8
9
8
7
6
5
5
5
5
5
6
6
8

Chance of Frost

Temperature (°C)

2
2
3
3
3
3
3
3
2
2
2
1
1
1
1
1
1
1
1
1
1
2
3
5

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

100
98
98
100
100
98
98
100
98
94
91
89
89
89
89
89
91
92
94
96
96
98
98
88

Pressure (mb)

1001
1002
1002
1003
1004
1005
1006
1008
1009
1010
1011
1012
1013
1014
1015
1015
1016
1016
1016
1017
1017
1018
1018
1018

Ozone (du)

365
361
358
355
349
352
354
353
345
349
352
347
337
329
329
329
325
318
315
317
316
315
315
317

Friday 20

Waxing Crescent 11%

08:49

22:12

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: 07:43, Set: 18:05, Transit: 12:55. Moon - Rise: 08:49, Set: 22:12. Civil Dark: 18:39 - 07:09. Nautical Dark: 19:19 - 06:30. Astro Dark: 19:58 - 05:50

Total Clouds (% Sky Obscured)

99
100
100
100
100
100
100
95
100
83
79
98
100
100
100
100
100
100
99
99
100
99
95
92

Low Clouds (% Sky Obscured)

69
66
72
78
77
89
100
87
74
75
70
73
37
41
31
46
55
77
93
92
76
84
87
82

Medium Clouds (% Sky Obscured)

97
98
94
100
100
100
100
87
95
4
1
32
65
65
72
98
100
99
99
97
100
97
89
68

High Clouds (% Sky Obscured)

72
89
100
100
100
100
100
15
1
0
28
92
100
100
100
50
92
96
66
53
85
33
5
10

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

0
2
10
8
51
95
95
93
86
79
49
24
2
0
0
0
6
62
95
95
95
88
74
47

Precipitation Amount (mm)

0
0
0
0
0
0.6
1
0.6
0.6
0.4
0
0
0
0
0
0
0
0.2
1.1
0.8
0.8
0.6
0.5
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
84
81
75
73
78
84
88
90
90
88
90
85
85
88
90
90
88
91
91
90
91
93
91

Pressure (mb)

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

Ozone (du)

317
317
318
324
324
332
342
346
347
352
353
359
352
346
343
337
334
332
329
327
327
330
326
321

Saturday 21

Waxing Crescent 19%

09:04

23:38

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: 07:41, Set: 18:07, Transit: 12:55. Moon - Rise: 09:04, Set: 23:38. Civil Dark: 18:41 - 07:07. Nautical Dark: 19:20 - 06:28. Astro Dark: 20:00 - 05:48

Total Clouds (% Sky Obscured)

95
100
100
100
100
100
96
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

78
66
75
84
79
73
45
79
85
95
80
93
99
87
87
92
83
88
93
93
93
93
92
91

Medium Clouds (% Sky Obscured)

71
32
60
91
82
87
59
100
100
100
98
100
100
95
100
100
100
100
100
99
98
97
98
99

High Clouds (% Sky Obscured)

61
100
100
100
100
100
89
13
100
50
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
0
0
2
2
5
5
2
2
3
9
6
2
2
1
2
1

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

Precipitation Probability (%)

16
4
6
4
0
0
1
56
95
95
58
58
45
89
88
76
70
47
70
74
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.3
0.9
0.6
0.2
0
0
0.6
0.5
0.2
0.3
0
0.2
0.3
0.8
1
1.1
1

Wind Speed/Direction (mph)

17
17
16
16
16
14
13
13
14
17
17
18
17
17
18
18
18
17
16
16
16
17
17
17

Chance of Frost

Temperature (°C)

10
10
11
10
10
10
10
9
9
9
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Feels Like (°C)

5
5
6
6
6
6
6
5
6
5
6
6
5
5
5
5
5
5
5
5
5
5
5
5

Dew Point (°C)

8
8
9
8
8
8
8
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Relative Humidity (%)

91
90
87
84
83
84
90
96
98
96
96
95
91
91
95
95
93
95
95
95
96
96
95
95

Pressure (mb)

1017
1017
1017
1018
1018
1018
1018
1018
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015

Ozone (du)

319
312
311
312
310
306
303
304
302
302
305
310
312
315
317
321
322
321
320
321
323
328
334
337

Sunday 22

Waxing Crescent 30%

09:24

01:07

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: 07:39, Set: 18:09, Transit: 12:55. Moon - Rise: 09:24, Set: 01:07. Civil Dark: 18:43 - 07:05. Nautical Dark: 19:22 - 06:26. Astro Dark: 20:01 - 05:46

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
91
93
89
93
97
100
79
67
60
61
60
57
57
51
45
52
82

Low Clouds (% Sky Obscured)

89
88
86
88
87
85
83
77
81
82
52
43
23
32
45
58
61
60
57
57
51
45
47
55

Medium Clouds (% Sky Obscured)

100
100
100
100
35
30
35
24
47
62
71
84
100
63
37
27
18
8
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
62
99
99
66
74
59
36
18
0
0
0
0
0
0
0
0
0
1
24
48

ISS Passover

Visibility (miles)

1
1
2
1
3
2
2
5
0
2
9
7
9
4
5
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

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

Precipitation Probability (%)

95
95
95
95
84
61
36
32
28
12
36
46
58
60
39
4
4
3
3
5
8
29
34
24

Precipitation Amount (mm)

1
1.5
1.2
0.9
0.4
0
0
0
0
0
0
0
0.3
0.3
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

17
16
15
16
15
15
14
14
15
15
15
15
15
16
16
17
16
16
16
15
15
16
17
17

Chance of Frost

Temperature (°C)

10
10
10
9
9
9
9
9
9
9
9
9
9
8
8
8
8
8
8
8
8
8
9
9

Feels Like (°C)

5
5
5
5
5
5
5
5
4
4
4
4
4
3
3
3
4
3
4
3
3
4
4
4

Dew Point (°C)

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

Relative Humidity (%)

96
95
95
95
95
95
95
93
95
95
88
88
90
90
87
85
85
82
82
84
85
82
78
77

Pressure (mb)

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

Ozone (du)

343
348
354
359
366
363
362
366
369
383
402
384
391
402
405
408
407
403
401
404
406
402
400
396

Monday 23

Waxing Crescent 41%

09:52

02:37

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: 07:37, Set: 18:10, Transit: 12:55. Moon - Rise: 09:52, Set: 02:37. Civil Dark: 18:45 - 07:03. Nautical Dark: 19:24 - 06:24. Astro Dark: 20:03 - 05:44

Total Clouds (% Sky Obscured)

93
88
85
80
83
74
89
87
96
100
100
98
100
100
100
100
100
100
100
100
100
100
96
93

Low Clouds (% Sky Obscured)

55
43
41
37
41
42
44
44
41
41
44
49
55
64
74
84
89
95
100
100
100
100
89
78

Medium Clouds (% Sky Obscured)

0
0
0
0
16
30
46
54
80
83
88
71
95
94
91
84
71
59
49
35
21
10
11
11

High Clouds (% Sky Obscured)

71
65
58
51
48
44
43
58
80
95
95
98
97
100
100
100
100
100
100
72
44
17
27
37

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
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

23
26
29
17
5
5
23
22
17
13
12
9
14
39
49
55
56
49
48
39
27
12
7
4

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
5
4
4
5
4
5
4
5
4
5
5
5
5
5
5
5
5
5
5
6
6
6
6

Dew Point (°C)

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

Relative Humidity (%)

73
73
74
73
74
77
81
82
84
85
87
88
88
93
91
91
93
90
88
88
88
87
87
84

Pressure (mb)

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

Ozone (du)

390
385
378
375
371
369
369
367
365
364
362
362
359
353
351
349
347
347
347
347
347
347
346
346

Tuesday 24

First Quarter 53%

10:36

04:01

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

Sun - Rise: 07:35, Set: 18:12, Transit: 12:55. Moon - Rise: 10:36, Set: 04:01. Civil Dark: 18:46 - 07:01. Nautical Dark: 19:26 - 06:21. Astro Dark: 20:05 - 05:42

Total Clouds (% Sky Obscured)

90
79
68
60
47
31
16
17
18
18
17
19
22
28
34
39
39
39
39
42
42
42
49
62

Low Clouds (% Sky Obscured)

67
60
53
46
32
17
3
5
6
8
11
15
17
24
30
36
36
36
38
36
35
38
36
36

Medium Clouds (% Sky Obscured)

8
6
3
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
5
8
25
46

High Clouds (% Sky Obscured)

50
43
37
33
32
31
16
17
18
18
17
19
12
7
4
1
1
0
0
5
11
15
42
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 (%)

3
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
79
76
72
70
75
80
84
87
90
91
91
91
93
93
93
93
93
91
91
87
84
80
72

Pressure (mb)

1016
1015
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1013
1013
1013
1014
1014
1014
1014
1015

Ozone (du)

345
344
344
345
345
344
343
342
344
346
348
349
349
350
351
352
353
353
353
353
354
354
354
354

Wednesday 25

Waxing Gibbous 64%

11:38

05:09

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

Sun - Rise: 07:33, Set: 18:14, Transit: 12:54. Moon - Rise: 11:38, Set: 05:09. Civil Dark: 18:48 - 06:59. Nautical Dark: 19:27 - 06:19. Astro Dark: 20:07 - 05:40

Total Clouds (% Sky Obscured)

60
60
55
55
50
50
50
56
65
77
78
76
74
82
89
98
98
99
100

Low Clouds (% Sky Obscured)

34
44
55
55
50
50
45
43
43
40
44
47
47
61
71
85
79
83
82

Medium Clouds (% Sky Obscured)

60
60
55
55
50
45
30
29
33
41
33
25
18
33
47
61
72
79
85

High Clouds (% Sky Obscured)

60
60
55
55
50
50
50
41
51
54
58
71
74
82
89
89
90
95
100

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

2
16
28
34
31
23
13
11
6
1
1
0
1
28
47
58
48
34
18

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

66
62
60
60
58
64
70
76
79
81
84
85
87
87
88
90
90
91
93

Pressure (mb)

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

Ozone (du)

355
355
355
356
356
357
358
358
359
361
362
364
365
367
375
383
391
397
404

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

Generated: 19/02/26 12:13:59. Forecast: 19/02/26 to 25/02/26. Timezone: UTC+1.00