Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 26

Waxing Gibbous 75%

12:57

05:59

13 OK
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
12 Bad

Sun - Rise: 07:30, Set: 18:16, Transit: 12:54. Moon - Rise: 12:57, Set: 05:59. Civil Dark: 18:50 - 06:56. Nautical Dark: 19:29 - 06:17. Astro Dark: 20:09 - 05:38

Total Clouds (% Sky Obscured)

17
45
63
71
87
95
97
93
96
100
100
100
91
80
100
100
100
84
46
63
71
90
95
98

Low Clouds (% Sky Obscured)

17
45
39
41
54
0
15
23
49
63
57
39
57
45
50
51
55
58
44
47
56
56
42
47

Medium Clouds (% Sky Obscured)

0
0
42
19
41
81
35
36
40
66
84
87
69
41
3
3
3
55
46
63
70
85
92
97

High Clouds (% Sky Obscured)

17
45
63
25
49
86
91
78
72
92
100
100
72
63
100
100
100
69
7
0
0
0
0
20

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
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

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
7
19
11
46
57
76

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
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

62
60
60
62
64
65
66
66
71
76
80
80
83
84
85
85
82
85
87
85
84
83
81
84

Pressure (mb)

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

Ozone (du)

383
379
375
371
366
366
365
361
359
356
355
353
352
350
347
345
345
344
344
343
344
344
346
347

Friday 27

Waxing Gibbous 85%

12:57

06:32

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
12 Bad

Sun - Rise: 07:28, Set: 18:18, Transit: 12:54. Moon - Rise: 12:57, Set: 06:32. Civil Dark: 18:52 - 06:54. Nautical Dark: 19:31 - 06:15. Astro Dark: 20:10 - 05:36

Total Clouds (% Sky Obscured)

99
97
100
100
100
100
99
100
100
100
100
100
100
100
100
100
99
100
100
100
99
100
96
99

Low Clouds (% Sky Obscured)

47
51
77
93
88
95
87
100
91
99
88
87
91
89
59
78
69
47
75
60
64
58
92
97

Medium Clouds (% Sky Obscured)

98
94
100
100
100
85
97
95
91
94
100
100
100
100
100
96
97
100
100
93
87
100
79
99

High Clouds (% Sky Obscured)

1
30
87
100
76
100
64
100
100
97
100
100
100
100
100
76
11
16
100
100
83
5
5
5

ISS Passover

Visibility (miles)

4
4
3
5
9
9
9
9
9
9
9
9
9
9
9
9
9
2
9
9
9
9
9
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

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

Precipitation Probability (%)

87
95
95
95
77
75
69
68
73
64
69
70
89
75
20
15
26
11
3
2
1
3
2
38

Precipitation Amount (mm)

0.4
0.8
0.9
0.9
0.4
0.4
0.3
0.3
0.4
0.3
0.4
0.3
0.7
0.5
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
92
92
93
92
91
91
91
90
88
85
85
85
88
90
90
91
93
93
91
91
90
85
81

Pressure (mb)

1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1014
1013
1014
1014
1014
1015
1015
1015
1015
1015

Ozone (du)

348
351
351
353
355
356
356
353
353
353
354
355
356
357
358
360
361
361
360
360
360
361
361
363

Saturday 28

Waxing Gibbous 92%

14:24

06:54

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

Sun - Rise: 07:26, Set: 18:20, Transit: 12:54. Moon - Rise: 14:24, Set: 06:54. Civil Dark: 18:54 - 06:52. Nautical Dark: 19:33 - 06:13. Astro Dark: 20:12 - 05:34

Total Clouds (% Sky Obscured)

99
79
82
85
93
76
90
68
61
35
52
46
53
28
99
100
95
88
92
68
72
76
77
78

Low Clouds (% Sky Obscured)

99
60
64
73
86
66
70
55
61
35
52
46
34
22
68
55
70
56
68
67
72
72
62
55

Medium Clouds (% Sky Obscured)

92
48
47
16
31
23
80
53
25
2
2
0
16
5
40
46
41
31
38
44
50
46
42
31

High Clouds (% Sky Obscured)

3
0
0
0
0
0
0
0
0
0
0
0
0
0
35
8
0
0
0
0
0
12
25
36

ISS Passover

Visibility (miles)

4
4
4
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
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

43
44
19
52
45
39
41
37
8
2
0
0
0
0
5
17
34
33
26
32
39
28
19
1

Precipitation Amount (mm)

0
0.3
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
4
3
4
5
6
5
5
4
4
3
3
3
2
2
2
3
5
5
6
8
10
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
76
76
77
80
84
87
88
90
88
87
85
86
90
90
88
88
88
86
88
87
79
69
62

Pressure (mb)

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

Ozone (du)

366
377
386
390
394
398
403
407
410
410
410
411
412
413
416
419
421
421
421
417
414
411
410
408

Sunday 1

Waxing Gibbous 97%

15:53

07:10

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 OK
12 OK

Sun - Rise: 07:24, Set: 18:21, Transit: 12:54. Moon - Rise: 15:53, Set: 07:10. Civil Dark: 18:55 - 06:50. Nautical Dark: 19:34 - 06:11. Astro Dark: 20:14 - 05:31

Total Clouds (% Sky Obscured)

83
82
83
83
82
81
81
78
78
74
75
90
96
99
79
83
88
88
88
88
83
59
35
22

Low Clouds (% Sky Obscured)

37
21
4
19
33
51
58
67
70
74
75
79
80
80
77
56
34
13
9
4
0
0
0
0

Medium Clouds (% Sky Obscured)

35
33
34
35
31
35
34
39
38
42
47
41
47
52
53
48
40
31
26
18
8
5
3
0

High Clouds (% Sky Obscured)

34
38
52
62
60
70
60
51
35
31
23
15
25
36
46
64
82
88
88
88
83
59
35
10

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 (%)

2
0
0
4
12
20
30
39
44
45
43
35
29
25
22
19
14
6
3
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

59
57
54
55
58
63
68
70
73
74
77
80
80
81
81
82
84
84
84
84
78
68
61
58

Pressure (mb)

1020
1020
1020
1020
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1020
1020
1020
1020
1019

Ozone (du)

406
405
401
399
397
396
395
392
391
390
390
389
389
388
387
387
387
387
386
386
387
387
388
389

Monday 2

Waxing Gibbous 100%

17:18

07:23

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

Sun - Rise: 07:22, Set: 18:23, Transit: 12:53. Moon - Rise: 17:18, Set: 07:23. Civil Dark: 18:57 - 06:48. Nautical Dark: 19:36 - 06:09. Astro Dark: 20:16 - 05:29

Total Clouds (% Sky Obscured)

22
36
52
36
18
1
1
1
0
28
57
80
79
77
85
74
54
34
23
11
0
0
10
15

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
6
4
2
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
17
25
26
40
54
34
23
11
0
0
10
15

High Clouds (% Sky Obscured)

22
36
52
36
18
0
0
0
0
28
57
80
79
77
85
60
30
0
0
0
0
0
0
4

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
8
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
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
0
0
1
3
2

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

53
50
49
50
55
62
68
71
73
76
80
84
87
87
88
87
87
85
85
82
80
78
76
73

Pressure (mb)

1019
1019
1018
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1020
1020
1020
1020

Ozone (du)

389
389
388
389
389
390
391
390
392
394
395
398
399
399
398
398
397
396
395
394
392
391
390
389

Tuesday 3

Full Moon 100%

18:40

07:33

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

Sun - Rise: 07:19, Set: 18:25, Transit: 12:53. Moon - Rise: 18:40, Set: 07:33. Civil Dark: 18:59 - 06:46. Nautical Dark: 19:38 - 06:06. Astro Dark: 20:18 - 05:27

Total Clouds (% Sky Obscured)

22
31
53
54
52
54
59
64
69
49
31
17
17
12
8
9
7
6
7
11
16
27
35
53

Low Clouds (% Sky Obscured)

8
15
23
15
8
0
4
9
10
11
12
17
13
9
6
5
4
1
1
1
0
5
12
18

Medium Clouds (% Sky Obscured)

22
31
53
54
52
53
48
43
33
22
12
1
1
0
0
0
0
0
0
0
0
1
1
1

High Clouds (% Sky Obscured)

4
4
10
14
16
12
19
20
20
14
7
1
0
0
0
0
0
1
0
0
2
3
8
10

ISS Passover

Visibility (miles)

4
6
8
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
18
18
12
1
4
3
1
1
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
5
6
6
5
4
4
4
4
5
4
4
4
4
3
3
3
3
3
4
5
5
6
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
72
75
77
79
79
80
81
81
82
84
85
85
85
84
84
85
85
87
78
71
66
60
55

Pressure (mb)

1020
1020
1020
1020
1020
1021
1021
1021
1021
1022
1022
1022
1022
1022
1023
1023
1023
1023
1023
1024
1024
1025
1025
1025

Ozone (du)

388
391
393
395
401
406
411
415
419
423
416
410
403
398
394
389
387
385
383
382
382
382
378
374

Wednesday 4

Waning Gibbous 97%

19:58

07:43

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 OK
03 OK
04 OK
05 OK
06 Good

Sun - Rise: 07:17, Set: 18:27, Transit: 12:53. Moon - Rise: 19:58, Set: 07:43. Civil Dark: 19:01 - 06:43. Nautical Dark: 19:40 - 06:04. Astro Dark: 20:19 - 05:24

Total Clouds (% Sky Obscured)

58
66
71
70
67
63
64
61
54
52
54
55
52
45
37
30
19
11

Low Clouds (% Sky Obscured)

23
31
37
38
37
33
33
30
30
30
33
39
34
31
26
18
9
0

Medium Clouds (% Sky Obscured)

1
1
0
5
14
26
19
11
2
2
1
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

15
26
26
24
21
26
50
56
54
52
54
55
52
45
37
30
19
11

ISS Passover

Visibility (miles)

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

Precipitation Type

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
1
1
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

2
2
2
2
3
3
4
3
3
3
3
3
3
3
3
3
3
4

Relative Humidity (%)

51
51
52
52
58
63
70
69
69
68
68
68
68
71
75
81
82
82

Pressure (mb)

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

Ozone (du)

370
369
368
367
366
364
362
362
361
361
361
361
361
360
359
358
357
357

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

Generated: 26/02/26 13:17:58. Forecast: 26/02/26 to 04/03/26. Timezone: UTC+1.00