Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 14

Waning Crescent 10%

07:04

14:00

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

Sun - Rise: 07:58, Set: 17:52, Transit: 12:55. Moon - Rise: 07:04, Set: 14:00. Civil Dark: 18:28 - 07:22. Nautical Dark: 19:08 - 06:42. Astro Dark: 19:47 - 06:03

Total Clouds (% Sky Obscured)

96
95
90
95
57
59
52
14
37
31
35
40
26
5
12
0
0
1
1
2
63
73
95
95

Low Clouds (% Sky Obscured)

70
94
90
83
55
58
52
14
37
31
35
40
26
5
12
0
0
0
0
0
0
36
49
59

Medium Clouds (% Sky Obscured)

4
2
2
3
3
3
6
1
0
0
0
0
0
0
0
0
0
0
0
0
0
27
65
89

High Clouds (% Sky Obscured)

6
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
57
47
90
28

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
0
0
0
0
0
1
1
2
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)

14
14
14
13
12
11
10
9
8
10
12
11
11
10
10
8
5
3
2
5
6
7
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-5
-5
-6
-6
-6
-5
-5
-5
-4
-3
-2
-2
-1
-0
0
0
1
0
0
-1
-2
-3
-4
-4

Dew Point (°C)

-3
-3
-4
-5
-5
-5
-4
-5
-4
-5
-5
-6
-6
-5
-5
-4
-3
-4
-4
-4
-4
-4
-4
-4

Relative Humidity (%)

78
77
73
71
70
74
78
78
77
67
61
57
55
54
56
58
65
71
73
74
74
75
75
75

Pressure (mb)

1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1014
1015
1015
1015
1016
1016
1017
1017
1018
1018
1018
1018

Ozone (du)

450
448
453
455
463
461
457
457
461
463
465
466
458
451
441
431
415
407
401
393
383
382
384
382

Sunday 15

Waning Crescent 5%

07:30

15:19

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
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:56, Set: 17:54, Transit: 12:55. Moon - Rise: 07:30, Set: 15:19. Civil Dark: 18:29 - 07:21. Nautical Dark: 19:09 - 06:41. Astro Dark: 19:49 - 06:01

Total Clouds (% Sky Obscured)

90
92
91
98
81
80
88
91
79
97
100
100
100
100
100
100
100
100
100
100
100
99
94
95

Low Clouds (% Sky Obscured)

54
46
46
39
39
40
37
0
0
0
0
0
0
44
84
100
100
100
100
100
100
99
83
83

Medium Clouds (% Sky Obscured)

85
87
88
95
78
47
77
91
79
97
100
100
100
100
100
100
100
100
100
100
100
85
88
69

High Clouds (% Sky Obscured)

32
39
42
29
9
14
30
15
6
4
100
100
100
100
100
100
100
95
100
100
10
0
0
2

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
6
1
1
6
2
0
0
0
0
0
0
0
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
None
None
None
None
None
None
None
None
Snow
Snow
Snow
Snow
Snow
Snow
Light Rain
Snow
None

Precipitation Probability (%)

4
5
3
5
2
2
0
0
0
0
2
24
32
29
34
87
95
95
95
95
95
95
95
80

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0.9
1.3
1.6
1.1
1.2
0.8
1.1
0

Wind Speed/Direction (mph)

8
9
10
10
10
11
11
13
14
15
16
16
16
16
18
18
17
16
16
15
14
13
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-5
-4
-5
-5
-5
-5
-5
-6
-6
-6
-5
-4
-4
-4
-5
-6
-6
-6
-6
-6
-5
-4
-4
-3

Dew Point (°C)

-4
-4
-4
-4
-4
-4
-5
-5
-6
-6
-7
-8
-8
-8
-7
-5
-1
-1
-1
-0
0
1
1
1

Relative Humidity (%)

74
73
73
71
74
74
71
68
65
59
53
47
44
44
49
64
92
96
96
96
96
98
98
98

Pressure (mb)

1018
1018
1017
1017
1017
1016
1015
1015
1014
1013
1012
1010
1009
1007
1005
1003
1001
999
998
996
994
992
990
988

Ozone (du)

383
385
385
382
377
367
358
356
351
345
343
346
348
349
350
352
357
358
361
361
368
375
373
367

Monday 16

Waning Crescent 1%

07:49

16:41

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
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:54, Set: 17:56, Transit: 12:55. Moon - Rise: 07:49, Set: 16:41. Civil Dark: 18:31 - 07:19. Nautical Dark: 19:11 - 06:39. Astro Dark: 19:51 - 05:59

Total Clouds (% Sky Obscured)

98
100
100
97
97
99
100
100
100
100
100
100
100
100
99
100
100
100
100
100
88
86
89
100

Low Clouds (% Sky Obscured)

70
81
88
86
86
88
91
89
90
98
96
95
83
86
86
94
93
85
90
94
88
86
89
100

Medium Clouds (% Sky Obscured)

73
76
93
75
83
96
100
100
100
100
100
100
100
56
57
52
41
47
57
89
59
53
49
67

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
36
36
33
56
40
53
96
85
63
35
16
20
15
16
9
6
4

ISS Passover

Visibility (miles)

0
9
9
9
9
9
9
6
7
9
9
9
9
8
9
9
9
8
7
6
7
7
7
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
None
None
None
None
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

56
52
59
63
59
67
93
93
66
57
58
58
57
63
65
69
65
63
58
54
50
52
44
44

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

15
14
20
21
18
19
19
20
21
23
22
23
23
22
21
18
16
15
15
14
14
14
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
94
89
90
89
88
93
93
86
82
80
80
76
75
76
78
79
79
82
82
85
85
88
86

Pressure (mb)

988
988
988
989
989
989
989
990
990
990
991
991
992
992
992
993
994
994
995
996
997
998
998
999

Ozone (du)

375
379
385
386
386
386
392
397
405
406
412
408
417
402
396
399
400
397
402
404
405
402
397
395

Tuesday 17

New Moon 0%

08:03

18:03

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 OK
17 OK
18 OK
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:52, Set: 17:58, Transit: 12:55. Moon - Rise: 08:03, Set: 18:03. Civil Dark: 18:33 - 07:17. Nautical Dark: 19:13 - 06:37. Astro Dark: 19:52 - 05:57

Total Clouds (% Sky Obscured)

79
78
81
81
87
75
69
67
60
59
62
73
65
51
45
31
24
10
47
73
98
98
99
100

Low Clouds (% Sky Obscured)

79
78
81
77
77
65
58
52
45
51
54
62
56
46
39
26
17
2
0
0
0
12
22
33

Medium Clouds (% Sky Obscured)

13
6
0
8
11
15
15
17
17
18
22
18
13
7
26
2
3
3
8
17
23
28
34
40

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
4
36
64
92
95
97
100

ISS Passover

Visibility (miles)

6
9
9
9
8
9
9
9
9
9
8
8
9
5
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 (%)

41
27
29
34
25
14
4
3
15
31
45
36
36
32
21
17
9
17
7
3
5
17
4
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)

15
15
15
15
14
14
14
14
14
14
15
16
13
12
11
11
7
7
6
7
6
6
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
88
86
86
86
88
83
80
79
76
76
85
80
82
67
71
76
76
77
79
74
74
73
69

Pressure (mb)

1000
1001
1002
1003
1004
1005
1006
1007
1008
1008
1009
1010
1011
1011
1012
1013
1014
1014
1015
1015
1015
1015
1015
1015

Ozone (du)

392
390
389
386
389
389
386
386
387
388
388
385
378
368
363
358
355
354
353
350
349
348
349
351

Wednesday 18

Waxing Crescent 1%

08:15

19:25

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
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:50, Set: 18:00, Transit: 12:55. Moon - Rise: 08:15, Set: 19:25. Civil Dark: 18:35 - 07:15. Nautical Dark: 19:15 - 06:35. Astro Dark: 19:54 - 05:55

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
100
74
68
67
85
95
100
100
100
100
100
100
100
83
69
65

Low Clouds (% Sky Obscured)

36
38
41
51
61
64
69
80
86
74
68
67
69
63
57
61
65
69
63
58
53
52
51
49

Medium Clouds (% Sky Obscured)

55
70
70
75
75
75
76
81
67
61
46
38
42
41
25
19
9
0
5
19
30
23
12
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
100
67
33
0
33
67
100
100
100
100
100
100
100
67
36
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
1
0
16
35
56
91
95
95
95
95
54
71
60
49
44
43
27
27
22
2
4
4
2

Precipitation Amount (mm)

0
0
0
0
0
0.2
0.6
1.1
1.5
1.2
0.7
0
0.3
0.2
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-3
-2
-3
-2
-2
-2
-2
-2
-1
1
3
4
4
4
4
4
6
6
6
3
3
3
3
2

Dew Point (°C)

-4
-4
-4
-4
-5
-5
-5
-5
-4
-4
-4
-4
-3
-2
-1
0
1
2
2
2
2
2
2
1

Relative Humidity (%)

68
66
66
66
64
64
64
64
63
58
52
49
51
53
57
61
66
71
76
78
79
78
79
78

Pressure (mb)

1014
1014
1013
1012
1011
1010
1009
1008
1007
1006
1006
1006
1005
1005
1004
1004
1004
1004
1004
1004
1004
1004
1004
1003

Ozone (du)

351
352
353
357
363
366
368
370
371
372
372
371
370
370
369
369
366
363
360
359
359
358
359
359

Thursday 19

Waxing Crescent 5%

08:25

20:48

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
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:48, Set: 18:02, Transit: 12:55. Moon - Rise: 08:25, Set: 20:48. Civil Dark: 18:37 - 07:13. Nautical Dark: 19:16 - 06:33. Astro Dark: 19:56 - 05:54

Total Clouds (% Sky Obscured)

76
87
97
98
99
100
100
100
100
100
100
100
100
100
100
100
100
100
98
97
96
97
97
98

Low Clouds (% Sky Obscured)

43
42
40
45
50
55
55
59
59
61
60
62
67
72
72
75
73
71
68
65
66
71
71
72

Medium Clouds (% Sky Obscured)

15
30
46
42
39
40
49
43
43
42
31
36
36
42
42
60
73
86
88
90
93
93
94
93

High Clouds (% Sky Obscured)

40
71
97
98
99
100
100
100
100
97
94
90
92
95
100
93
87
80
53
27
0
16
31
45

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 (%)

4
5
1
4
4
0
1
2
1
6
7
5
7
8
8
16
16
13
16
18
17
24
28
30

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
79
80
80
80
80
80
77
74
72
67
62
58
59
59
60
63
69
75
76
77
77
77
76

Pressure (mb)

1003
1003
1003
1003
1003
1003
1002
1003
1004
1004
1004
1005
1005
1005
1006
1006
1007
1008
1008
1009
1010
1011
1011
1012

Ozone (du)

360
359
358
357
354
351
348
347
346
345
346
347
348
345
343
341
338
336
333
333
333
333
332
330

Friday 20

Waxing Crescent 11%

08:36

22:12

Sun - Rise: 07:45, Set: 18:04, Transit: 12:55. Moon - Rise: 08:36, Set: 22:12. Civil Dark: 18:38 - 07:11. Nautical Dark: 19:18 - 06:31. Astro Dark: 19:58 - 05:52

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 Heemskerkerduin, Gemeente Heemskerk, Netherlands (52.51,4.64)

Generated: 14/02/26 01:51:00. Forecast: 14/02/26 to 20/02/26. Timezone: UTC+1.00