Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 30

Waxing Gibbous 99%

20:13

05:33

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

Sun - Rise: 06:09, Set: 21:06, Transit: 13:38. Moon - Rise: 20:13, Set: 05:33. Civil Dark: 21:45 - 05:29. Nautical Dark: 22:36 - 04:38. Astro Dark: 23:41 - 03:32

Total Clouds (% Sky Obscured)

17
14
11
0
1
1
0
0
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

1
1
0
0
0
1
0
0
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
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
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
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)

17
17
17
17
17
16
16
14
13
13
12
11
11
10
10
10
9
9
10
12
13
15
15
15

Chance of Frost

Temperature (°C)

16
17
18
19
19
18
18
16
15
14
13
12
12
11
10
10
9
9
9
10
12
15
16
18

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

29
29
30
33
36
40
45
50
52
52
54
57
61
64
67
68
69
70
68
61
53
45
41
39

Pressure (mb)

1028
1027
1027
1026
1026
1025
1025
1025
1026
1026
1026
1027
1027
1027
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025

Ozone (du)

374
376
376
376
375
375
375
375
375
375
376
377
377
377
377
378
377
377
377
378
378
378
378
379

Friday 1

Full Moon 100%

21:29

05:49

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

Sun - Rise: 06:07, Set: 21:07, Transit: 13:38. Moon - Rise: 21:29, Set: 05:49. Civil Dark: 21:47 - 05:27. Nautical Dark: 22:38 - 04:35. Astro Dark: 23:45 - 03:28

Total Clouds (% Sky Obscured)

0
1
1
1
1
1
0
0
0
0
0
5
24
71
100
100
100
84
100
74
91
93
100
90

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
13
0
22
26
0
48
41
50
74
77
51

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
4
19
19
2
9
67
84
70
45
83
30
27
42

High Clouds (% Sky Obscured)

0
1
1
1
1
1
0
0
0
0
0
0
0
32
100
100
100
10
100
39
46
58
100
30

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
21
21
23
7

Precipitation Type

None
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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
28
13
30
32
4
24
20
5

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

37
37
37
37
39
41
44
50
57
61
64
67
69
71
72
72
73
75
73
71
68
65
60
59

Pressure (mb)

1025
1024
1023
1023
1022
1022
1021
1021
1021
1021
1021
1020
1020
1020
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018

Ozone (du)

380
382
383
384
383
382
383
385
386
386
386
386
385
388
390
382
378
377
376
374
372
370
368
367

Saturday 2

Waning Gibbous 98%

22:44

06:10

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 Bad
12 Bad

Sun - Rise: 06:05, Set: 21:09, Transit: 13:38. Moon - Rise: 22:44, Set: 06:10. Civil Dark: 21:49 - 05:25. Nautical Dark: 22:41 - 04:33. Astro Dark: 23:48 - 03:23

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
96
100
99
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

74
64
35
0
0
0
12
44
58
71
67
78
77
73
64
46
52
74
71
75
74
74
81
88

Medium Clouds (% Sky Obscured)

17
42
43
30
25
44
77
100
97
95
99
85
91
85
90
92
91
97
100
100
100
100
100
100

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
88
100
100
100
92
82
100
74
100
100
100
100
99
98

ISS Passover

Visibility (miles)

3
0
0
0
0
0
9
9
9
9
9
9
9
9
9
9
9
9
9
4
7
9
6
3

Fog (%)

2
0
0
0
0
4
5
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
Very Light Rain
None
None
None
None
None
None
None
None
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

4
3
2
2
3
2
4
15
53
60
50
57
51
39
12
27
30
56
87
82
74
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.3
0
0
0
0
0
0
0
0
0.6
0.6
0.3
0.9
0.8
2

Wind Speed/Direction (mph)

11
11
11
10
9
8
6
4
4
4
3
5
4
5
5
6
6
5
5
5
6
6
6
7

Chance of Frost

Temperature (°C)

18
18
17
17
17
16
16
15
14
13
13
12
12
12
12
12
12
12
12
13
14
14
15
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

65
65
68
72
75
77
77
76
74
72
71
69
71
70
73
79
83
90
96
93
93
95
90
95

Pressure (mb)

1018
1017
1017
1017
1016
1016
1015
1015
1014
1014
1014
1013
1013
1012
1012
1011
1010
1010
1009
1009
1009
1009
1008
1008

Ozone (du)

366
365
363
363
362
362
362
365
367
368
368
367
368
369
369
369
369
369
369
369
371
372
373
374

Sunday 3

Waning Gibbous 95%

23:56

06:40

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: 06:03, Set: 21:11, Transit: 13:38. Moon - Rise: 23:56, Set: 06:40. Civil Dark: 21:51 - 05:23. Nautical Dark: 22:43 - 04:30. Astro Dark: 23:52 - 03:19

Total Clouds (% Sky Obscured)

100
100
100
100
86
84
88
84
81
77
72
67
66
75
83
96
97
99
100
96
91
88
85
82

Low Clouds (% Sky Obscured)

96
91
87
80
76
72
68
65
63
60
62
64
66
68
69
67
75
79
81
79
75
70
71
73

Medium Clouds (% Sky Obscured)

100
100
85
31
21
18
17
15
16
14
12
7
0
12
26
36
39
38
36
31
26
20
14
10

High Clouds (% Sky Obscured)

96
97
98
100
65
56
53
40
20
0
0
0
0
10
20
31
54
77
100
67
33
0
0
0

ISS Passover

Visibility (miles)

1
2
4
5
6
8
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

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

Precipitation Probability (%)

95
95
94
85
77
60
33
28
20
0
1
5
7
11
11
6
11
12
8
17
21
23
28
28

Precipitation Amount (mm)

1.9
1.6
0.5
0.4
0.4
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
8
10
12
16
15
13
11
10
9
9
9
10
10
9
9
8
8
10
10
10
9
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
96
93
87
82
76
79
79
81
83
81
81
84
84
84
90
91
93
88
87
84
81
73
69

Pressure (mb)

1008
1008
1008
1009
1009
1009
1010
1010
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1012
1012
1013
1013
1013
1013

Ozone (du)

373
377
380
384
394
393
390
388
388
387
387
386
386
385
381
379
378
377
379
379
377
376
376
374

Monday 4

Waning Gibbous 90%

01:00

07:22

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: 06:01, Set: 21:13, Transit: 13:38. Moon - Rise: 01:00, Set: 07:22. Civil Dark: 21:53 - 05:21. Nautical Dark: 22:46 - 04:27. Astro Dark: 23:56 - 03:15

Total Clouds (% Sky Obscured)

79
78
81
83
79
73
70
72
74
74
82
88
96
92
88
84
85
85
85
79
73
67
75
84

Low Clouds (% Sky Obscured)

74
75
77
79
73
68
59
57
57
55
54
62
63
63
65
67
69
72
74
66
58
50
49
48

Medium Clouds (% Sky Obscured)

2
2
0
0
0
9
2
22
34
40
64
78
94
90
88
84
85
85
85
79
73
67
75
79

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
5
5
5
5
0
0
0
0
4
9
13
11
9
8
5
5

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

24
19
15
8
6
2
0
0
1
2
8
22
23
33
36
33
38
42
48
48
49
49
41
31

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
64
62
62
63
67
71
77
82
84
82
82
85
87
88
90
91
91
91
91
90
90
90
84

Pressure (mb)

1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1014
1013
1013
1013
1013
1013
1012
1012
1012
1012
1012
1012
1013
1013

Ozone (du)

372
372
371
370
369
368
365
364
364
365
366
366
367
368
368
369
370
371
372
373
374
375
376
375

Tuesday 5

Waning Gibbous 83%

01:51

08:17

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: 05:59, Set: 21:14, Transit: 13:38. Moon - Rise: 01:51, Set: 08:17. Civil Dark: 21:54 - 05:19. Nautical Dark: 22:48 - 04:25. Astro Dark: 00:00 - 03:11

Total Clouds (% Sky Obscured)

91
87
81
76
77
80
82
88
93
98
99
99
99
100
100
100
100
100
100
100
100
100
91
82

Low Clouds (% Sky Obscured)

47
50
52
53
44
35
26
29
31
34
42
50
58
61
66
72
71
68
68
76
83
91
78
63

Medium Clouds (% Sky Obscured)

81
62
43
24
41
58
74
82
91
98
98
99
99
99
100
100
100
100
100
100
100
100
78
57

High Clouds (% Sky Obscured)

2
6
8
24
29
39
35
50
50
45
30
30
25
20
5
0
0
0
0
0
0
0
4
7

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
8
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
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None

Precipitation Probability (%)

17
13
7
1
2
2
0
1
1
0
14
17
14
27
31
24
52
64
70
65
64
66
60
51

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
75
71
69
66
70
72
77
77
77
77
81
84
88
90
90
91
93
93
94
91
90
88
84

Pressure (mb)

1013
1012
1012
1012
1012
1012
1012
1012
1012
1012
1013
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013

Ozone (du)

374
374
375
376
378
379
380
382
383
384
385
385
384
384
383
382
382
382
381
381
383
386
388
386

Wednesday 6

Waning Gibbous 75%

02:29

09:23

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: 05:58, Set: 21:16, Transit: 13:38. Moon - Rise: 02:29, Set: 09:23. Civil Dark: 21:56 - 05:17. Nautical Dark: 22:51 - 04:22. Astro Dark: 00:05 - 03:06

Total Clouds (% Sky Obscured)

74
70
68
65
62
58
53
63
69
76
81
84
89
81
71
62
64
65
66

Low Clouds (% Sky Obscured)

48
47
45
44
44
42
38
38
37
33
39
50
60
61
61
60
61
62
63

Medium Clouds (% Sky Obscured)

35
30
23
15
10
6
2
2
1
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

9
9
7
3
2
1
0
6
11
13
14
7
8
21
35
48
41
36
16

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
8
8
8
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
Very Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

42
35
29
25
23
21
17
25
35
46
64
74
79
63
45
21
18
14
8

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
6
8
8
8
8
8
8
7
7
7
7
7
7
2
1
0
0
-0

Dew Point (°C)

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

Relative Humidity (%)

80
78
77
76
76
78
81
84
85
88
90
91
93
94
93
88
86
81
78

Pressure (mb)

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

Ozone (du)

384
382
384
386
387
387
386
386
390
395
399
399
398
398
394
390
387
387
386

Forecast for Overveen, Gemeente Bloemendaal, Netherlands (52.39,4.61)

Generated: 30/04/26 13:07:01. Forecast: 30/04/26 to 06/05/26. Timezone: UTC+2.00