Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 1

Full Moon 100%

21:25

05:48

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

Sun - Rise: 06:06, Set: 21:04, Transit: 13:36. Moon - Rise: 21:25, Set: 05:48. Civil Dark: 21:43 - 05:27. Nautical Dark: 22:34 - 04:35. Astro Dark: 23:39 - 03:29

Total Clouds (% Sky Obscured)

0
0
0
1
0
0
0
0
0
0
0
19
30
70
73
96
95
94
86
100
100
100
82
70

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
14
29
60
84
54
46
49
58
59

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
14
22
41
37
20
95
75
3
20
21
73
79
49

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
12
86
25
69
23
100
100
100
20
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
7
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
Very Light Rain
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
1
7
11
9
6
4
9
43
38
26
11
9

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0
0
0

Wind Speed/Direction (mph)

12
11
9
6
5
5
5
5
5
6
6
6
6
6
6
6
6
9
10
11
11
10
10
9

Chance of Frost

Temperature (°C)

24
23
22
20
17
15
14
13
12
11
11
11
10
10
11
13
15
17
19
20
20
20
21
21

Feels Like (°C)

22
22
22
21
17
16
14
13
12
11
11
10
10
10
10
12
15
16
17
19
18
18
19
20

Dew Point (°C)

10
10
12
13
11
10
8
6
6
6
6
6
6
6
6
9
11
13
13
13
13
14
14
14

Relative Humidity (%)

41
44
53
62
67
68
64
64
66
68
71
74
74
73
74
76
78
73
68
64
66
69
67
63

Pressure (mb)

1022
1021
1021
1020
1021
1021
1021
1021
1020
1020
1019
1019
1019
1018
1019
1019
1018
1018
1018
1018
1018
1017
1017
1016

Ozone (du)

381
380
381
383
385
387
389
391
393
392
390
387
384
382
381
376
370
368
366
364
364
364
366
367

Saturday 2

Waning Gibbous 98%

22:40

06:10

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
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:04, Set: 21:06, Transit: 13:36. Moon - Rise: 22:40, Set: 06:10. Civil Dark: 21:45 - 05:25. Nautical Dark: 22:37 - 04:33. Astro Dark: 23:43 - 03:25

Total Clouds (% Sky Obscured)

80
100
99
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)

47
42
47
41
36
26
18
7
20
34
7
39
42
31
16
31
47
59
70
73
85
79
78
70

Medium Clouds (% Sky Obscured)

60
17
64
90
100
100
100
100
95
78
90
96
91
86
92
91
100
93
100
95
34
37
77
81

High Clouds (% Sky Obscured)

9
100
96
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
5
4
7
5
9
9
3
3
9
9
7
9
9
9
9
8
4
5
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
None
None
None
Very Light Rain
Very Light Rain
None
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

15
8
9
27
51
56
39
23
36
66
66
49
23
29
29
20
33
55
70
72
79
74
95
95

Precipitation Amount (mm)

0
0
0
0
0
0.2
0
0
0
0.2
0.3
0
0
0
0
0
0
0.2
0.4
0.4
0.5
0.3
1.1
0.8

Wind Speed/Direction (mph)

8
7
4
4
4
3
5
5
6
5
4
4
5
6
7
7
9
11
12
10
10
11
10
10

Chance of Frost

Temperature (°C)

21
21
21
19
17
15
14
14
14
14
14
14
14
14
14
15
15
16
16
15
16
18
18
18

Feels Like (°C)

20
20
20
17
15
14
13
13
13
13
13
13
13
13
13
14
14
14
14
14
14
15
16
16

Dew Point (°C)

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

Relative Humidity (%)

60
59
61
60
63
82
86
92
95
96
98
98
96
96
96
96
93
92
92
93
90
82
78
65

Pressure (mb)

1016
1015
1015
1014
1014
1014
1014
1013
1012
1012
1011
1011
1010
1010
1010
1010
1010
1011
1011
1011
1011
1010
1010
1010

Ozone (du)

368
367
367
365
364
365
367
368
370
369
369
368
369
370
370
371
370
372
372
374
376
377
378
378

Sunday 3

Waning Gibbous 95%

23:52

06:40

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

Sun - Rise: 06:02, Set: 21:08, Transit: 13:36. Moon - Rise: 23:52, Set: 06:40. Civil Dark: 21:47 - 05:22. Nautical Dark: 22:39 - 04:30. Astro Dark: 23:46 - 03:21

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
73
100
72
45
35
64
74
46
68
88
70
57
85
80
75
71
70
77

Low Clouds (% Sky Obscured)

87
34
40
25
19
42
66
40
0
0
0
12
26
46
68
75
70
57
64
61
68
65
62
59

Medium Clouds (% Sky Obscured)

77
88
76
86
23
25
25
25
25
20
26
64
69
4
2
2
1
0
19
25
27
24
20
39

High Clouds (% Sky Obscured)

100
100
100
100
100
100
43
100
72
45
35
39
10
0
0
23
1
0
22
8
13
3
18
26

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 (%)

47
33
15
7
3
6
5
2
4
4
5
5
4
2
0
0
1
3
5
18
8
6
4
3

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

62
64
68
74
79
81
77
77
83
86
88
88
88
90
90
83
76
70
65
61
60
60
60
60

Pressure (mb)

1010
1010
1010
1010
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1012
1012
1012
1012
1012
1012
1012
1012
1012

Ozone (du)

379
380
380
380
380
380
382
383
382
383
385
386
388
390
390
389
388
388
386
387
387
387
385
382

Monday 4

Waning Gibbous 90%

00:55

07:22

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

Sun - Rise: 06:00, Set: 21:09, Transit: 13:36. Moon - Rise: 00:55, Set: 07:22. Civil Dark: 21:49 - 05:20. Nautical Dark: 22:42 - 04:27. Astro Dark: 23:50 - 03:17

Total Clouds (% Sky Obscured)

56
50
50
51
44
37
35
31
22
13
20
14
10
5
10
13
21
24
34
44
55
59
60
64

Low Clouds (% Sky Obscured)

42
26
9
6
3
1
1
0
1
0
0
0
0
0
0
0
0
0
12
23
35
23
16
10

Medium Clouds (% Sky Obscured)

10
19
50
51
44
37
35
31
22
13
20
14
10
5
10
13
6
8
10
12
14
21
39
64

High Clouds (% Sky Obscured)

25
49
49
38
2
8
32
31
22
1
3
1
0
0
0
0
0
0
0
0
0
0
5
5

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
2
0
0
1
1
1
1
0
1
2
1
2
2
1
0
0
0
0
0
0
0
1
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)

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

Chance of Frost

Temperature (°C)

17
16
15
14
12
11
10
9
9
8
7
7
7
7
7
8
10
12
14
15
16
17
16
16

Feels Like (°C)

14
14
13
12
10
9
8
7
7
7
6
5
5
5
6
5
7
10
12
12
13
14
14
14

Dew Point (°C)

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

Relative Humidity (%)

59
60
62
69
75
83
90
91
90
91
93
94
96
96
91
82
76
67
60
55
52
52
53
56

Pressure (mb)

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

Ozone (du)

381
379
378
379
380
379
379
379
380
381
382
383
382
383
384
383
383
382
382
380
380
381
382
382

Tuesday 5

Waning Gibbous 83%

01:47

08:17

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
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 05:59, Set: 21:11, Transit: 13:36. Moon - Rise: 01:47, Set: 08:17. Civil Dark: 21:51 - 05:18. Nautical Dark: 22:44 - 04:25. Astro Dark: 23:54 - 03:13

Total Clouds (% Sky Obscured)

74
81
90
92
92
94
93
93
93
89
85
82
73
66
60
52
67
81
87
94
100
98
96
94

Low Clouds (% Sky Obscured)

18
26
29
34
40
39
42
49
55
59
63
67
47
30
15
8
6
14
22
33
51
59
61
59

Medium Clouds (% Sky Obscured)

60
45
50
66
85
91
88
87
85
76
69
64
68
66
60
52
67
81
86
87
95
95
95
94

High Clouds (% Sky Obscured)

5
5
0
0
0
0
4
8
12
9
6
8
4
4
4
40
60
75
83
92
100
73
50
25

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
2
2
1
1
4
11
15
14
14
23
13
22
18
27
43
45
44
35
29
22
19
16
6

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
11
12
12
13
12
11
11
11
11
10
10
10
10
10
10
10
11
11
11
11
10
10
10

Chance of Frost

Temperature (°C)

16
15
14
13
12
12
11
11
10
10
9
8
8
8
8
8
9
9
9
9
10
10
10
10

Feels Like (°C)

13
12
11
10
9
8
8
7
7
6
6
5
5
4
4
5
5
5
6
6
6
6
7
7

Dew Point (°C)

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

Relative Humidity (%)

56
59
62
63
62
63
65
68
71
70
73
74
75
78
79
81
82
85
88
84
81
78
78
77

Pressure (mb)

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

Ozone (du)

382
384
385
386
385
385
385
387
386
386
386
385
386
387
385
385
384
383
383
383
383
383
383
383

Wednesday 6

Waning Gibbous 75%

02:25

09:23

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
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 05:57, Set: 21:13, Transit: 13:36. Moon - Rise: 02:25, Set: 09:23. Civil Dark: 21:53 - 05:16. Nautical Dark: 22:46 - 04:22. Astro Dark: 23:58 - 03:09

Total Clouds (% Sky Obscured)

83
71
55
63
75
86
72
60
48
64
83
89
87
85
84
90
95
100
95
89
86
86
82
85

Low Clouds (% Sky Obscured)

59
54
50
40
24
24
21
13
1
3
5
8
8
7
5
17
30
41
37
32
28
28
28
23

Medium Clouds (% Sky Obscured)

82
70
55
60
61
62
53
44
35
46
57
68
69
71
72
77
79
79
77
77
76
76
69
61

High Clouds (% Sky Obscured)

54
48
24
38
50
56
42
31
21
38
43
43
45
53
62
75
87
100
90
79
69
72
77
82

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 (%)

9
11
9
7
4
0
0
0
0
0
0
0
0
1
1
7
9
7
8
5
1
2
2
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)

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

Chance of Frost

Temperature (°C)

10
10
9
9
8
7
6
5
5
4
4
4
4
5
6
6
8
9
11
12
14
15
15
16

Feels Like (°C)

8
7
7
6
5
6
5
5
4
4
2
2
2
2
2
2
5
6
6
7
7
7
15
15

Dew Point (°C)

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

Relative Humidity (%)

77
77
78
78
82
87
91
93
93
94
93
91
91
88
86
85
79
74
71
64
57
53
53
53

Pressure (mb)

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

Ozone (du)

382
384
385
387
388
389
389
391
392
394
394
394
395
397
400
402
401
399
398
397
397
396
393
390

Thursday 7

Waning Gibbous 66%

02:53

10:36

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
13 Bad

Sun - Rise: 05:55, Set: 21:14, Transit: 13:36. Moon - Rise: 02:53, Set: 10:36. Civil Dark: 21:55 - 05:14. Nautical Dark: 22:49 - 04:20. Astro Dark: 00:03 - 03:04

Total Clouds (% Sky Obscured)

86
90
91
90
89
92
91
90
86
85
89
92
91
90
88
87
85
84
80
82
83

Low Clouds (% Sky Obscured)

22
18
17
24
38
54
58
61
62
63
71
76
72
69
68
70
72
74
73
73
69

Medium Clouds (% Sky Obscured)

56
56
51
50
40
50
50
50
50
50
50
50
52
44
38
37
37
37
38
36
42

High Clouds (% Sky Obscured)

83
89
86
76
71
66
63
52
42
38
42
38
37
28
19
17
19
23
22
25
24

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

Fog (%)

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

Precipitation Probability (%)

1
4
5
19
28
37
64
83
95
95
95
95
89
66
33
31
27
22
25
25
22

Precipitation Amount (mm)

0
0
0
0
0
0
0.3
0.6
0.9
0.8
0.8
0.8
0.7
0.3
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
15
14
13
12
11
9
9
8
7
7
6
6
7
8
8
10
12
13
14
15

Feels Like (°C)

15
15
15
15
12
12
12
12
11
11
7
7
6
6
6
5
9
9
9
9
10

Dew Point (°C)

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

Relative Humidity (%)

53
58
66
75
79
81
87
88
90
93
91
93
91
88
84
81
72
63
56
52
50

Pressure (mb)

1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1016
1016
1016
1017
1017
1017

Ozone (du)

386
387
387
387
387
387
387
388
388
389
389
389
389
387
386
384
382
381
379
378
377

Forecast for Utrecht, Gemeente Utrecht, Netherlands (52.09,5.12)

Generated: 01/05/26 17:08:28. Forecast: 01/05/26 to 07/05/26. Timezone: UTC+2.00