Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 29

Waxing Gibbous 98%

No Rise

04:15

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

Sun - Rise: 05:26, Set: 21:47, Transit: 13:37. Moon - Rise: No Rise, Set: 04:15. Civil Dark: 22:33 - 04:39. Nautical Dark: 23:41 - 03:30. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
97
100
89
34
32
41
32
21
73
61
59
76
71
57
38
14
12
29
35
82
70
98
73

Low Clouds (% Sky Obscured)

10
5
4
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)

99
90
80
43
14
32
40
23
15
31
20
22
18
12
16
12
4
2
3
0
17
31
28
19

High Clouds (% Sky Obscured)

75
97
51
73
25
0
0
0
0
38
32
25
46
45
18
19
10
12
28
35
70
45
94
56

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 (%)

16
2
1
0
0
0
0
0
0
0
0
0
0
0
0
3
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)

8
8
8
6
4
4
3
2
2
3
3
3
3
3
3
2
1
1
3
4
5
7
7
8

Chance of Frost

Temperature (°C)

19
18
17
16
16
15
14
14
14
13
14
16
18
20
22
23
25
26
26
27
27
26
25
23

Feels Like (°C)

19
17
17
16
16
16
15
15
16
15
16
18
20
22
24
25
25
26
26
26
25
24
24
22

Dew Point (°C)

14
13
12
11
12
12
12
11
11
11
10
10
10
10
10
10
10
10
11
11
12
13
15
16

Relative Humidity (%)

73
73
71
72
79
82
84
84
84
83
76
66
57
50
46
42
39
38
38
37
39
44
54
62

Pressure (mb)

1022
1023
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1021
1021
1020
1019
1019
1018
1018
1017
1017
1017

Ozone (du)

329
331
334
336
337
339
340
340
338
336
335
333
332
332
332
332
333
335
337
339
340
340
341
341

Saturday 30

Waxing Gibbous 100%

21:41

04:42

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

Sun - Rise: 05:25, Set: 21:48, Transit: 13:37. Moon - Rise: 21:41, Set: 04:42. Civil Dark: 22:34 - 04:38. Nautical Dark: 23:43 - 03:28. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

42
45
74
84
83
87
100
100
99
89
94
73
70
100
100
100
100
89
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
14
27
0
0
21
13
25
38
54
49
49
40
55
55
44
20
13
4
7
37
0
23
10

Medium Clouds (% Sky Obscured)

21
29
36
30
23
29
0
2
46
82
55
36
26
46
31
27
39
61
87
93
91
86
96
90

High Clouds (% Sky Obscured)

16
3
73
78
49
16
100
100
97
65
79
5
0
100
100
100
100
43
100
100
95
96
100
100

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
3
18
2
2
10
67
70
40
30
32
22
29
16
0
2
13
3
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0.6
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
7
6
6
5
4
4
3
4
2
2
3
5
4
5
6
8
11
12
13
14
14
12
10

Chance of Frost

Temperature (°C)

21
18
17
17
16
16
16
15
15
15
16
17
19
19
20
22
23
23
23
22
21
20
19
18

Feels Like (°C)

20
18
17
17
16
15
15
15
15
15
16
18
19
20
21
22
22
21
20
20
18
17
17
15

Dew Point (°C)

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

Relative Humidity (%)

68
72
76
81
87
90
93
93
92
95
92
89
84
82
80
67
53
49
50
51
54
54
55
60

Pressure (mb)

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

Ozone (du)

342
344
343
343
344
344
345
345
347
351
358
359
354
350
348
347
346
345
346
348
350
353
352
356

Sunday 31

Full Moon 100%

22:47

05:20

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
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 05:24, Set: 21:49, Transit: 13:37. Moon - Rise: 22:47, Set: 05:20. Civil Dark: 22:35 - 04:37. Nautical Dark: 23:45 - 03:26. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

96
88
92
80
94
72
59
65
43
71
80
87
76
62
77
81
97
98
99
100
100
100
100
100

Low Clouds (% Sky Obscured)

25
5
0
11
34
27
36
7
33
47
45
52
48
44
41
59
50
53
55
60
51
43
34
31

Medium Clouds (% Sky Obscured)

71
63
51
54
68
49
32
46
27
40
46
36
38
28
31
28
21
26
30
81
65
50
42
46

High Clouds (% Sky Obscured)

13
10
72
0
0
0
0
0
0
1
2
42
33
5
8
17
85
81
98
100
100
100
100
100

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
1
20
69
98
12
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
1
15
23
26
24
22
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
15
14
15
15
15
15
15
14
14
15
16
17
19
19
20
19
20
20
20
19
19
18
18

Dew Point (°C)

11
12
12
12
12
12
12
12
12
11
12
12
12
12
11
11
11
12
12
11
10
10
10
11

Relative Humidity (%)

68
75
79
84
87
89
87
89
90
90
86
77
72
64
56
52
51
50
51
49
47
48
50
56

Pressure (mb)

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

Ozone (du)

358
362
368
370
370
366
361
358
357
354
351
352
350
348
347
347
345
344
343
341
338
337
337
337

Monday 1

Waning Gibbous 97%

23:42

06:11

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
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 05:23, Set: 21:50, Transit: 13:37. Moon - Rise: 23:42, Set: 06:11. Civil Dark: 22:37 - 04:36. Nautical Dark: 23:47 - 03:25. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
97
95
92
95
97
99
100
100
99
98
100
100
95

Low Clouds (% Sky Obscured)

35
43
47
46
42
50
60
71
73
76
79
80
82
84
85
86
87
77
64
60
55
50
31
37

Medium Clouds (% Sky Obscured)

78
100
100
99
100
99
98
97
98
99
100
90
80
69
75
83
92
83
39
28
41
51
99
49

High Clouds (% Sky Obscured)

100
100
99
98
97
97
98
100
100
100
100
67
33
0
31
62
94
96
98
95
97
100
100
84

ISS Passover

Visibility (miles)

9
9
9
9
9
9
5
4
9
7
5
3
2
1
4
6
4
5
9
5
6
5
5
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
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

0
0
10
23
29
66
95
95
80
95
95
95
95
95
95
84
78
53
71
74
75
85
84
66

Precipitation Amount (mm)

0
0
0
0
0
0.3
0.7
0.6
0.3
0.6
1.1
1.3
2.3
1.7
0.4
0.5
0.5
0
0.4
0.4
0.4
0.5
0.6
0.3

Wind Speed/Direction (mph)

4
2
2
3
4
5
6
5
7
8
8
8
9
10
10
11
11
11
9
12
10
10
9
8

Chance of Frost

Temperature (°C)

18
17
17
17
17
16
16
15
15
15
15
15
16
17
17
18
18
18
18
19
19
19
18
17

Feels Like (°C)

17
17
16
16
15
15
15
15
14
14
14
14
15
16
16
16
17
17
17
17
18
17
17
16

Dew Point (°C)

11
11
10
10
10
11
13
14
15
15
15
15
16
16
17
17
17
17
16
16
15
14
14
13

Relative Humidity (%)

61
64
63
63
64
68
86
96
98
96
98
98
96
98
96
93
90
92
88
80
78
75
77
78

Pressure (mb)

1012
1012
1011
1011
1010
1010
1009
1008
1008
1007
1007
1007
1006
1006
1006
1006
1005
1005
1005
1005
1005
1005
1005
1005

Ozone (du)

338
339
341
342
343
344
344
346
350
353
355
356
360
358
361
366
369
374
379
383
386
387
388
389

Tuesday 2

Waning Gibbous 93%

00:25

07:14

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
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 05:22, Set: 21:51, Transit: 13:37. Moon - Rise: 00:25, Set: 07:14. Civil Dark: 22:38 - 04:35. Nautical Dark: 23:49 - 03:23. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

89
83
87
86
91
86
74
65
74
83
92
97
94
90
92
93
94
92
90
89
88
85
81
67

Low Clouds (% Sky Obscured)

42
54
50
44
39
46
51
55
66
76
84
75
77
81
83
86
90
88
87
85
82
77
73
62

Medium Clouds (% Sky Obscured)

60
34
35
17
1
1
3
4
12
19
24
4
8
9
9
9
5
28
51
73
78
84
81
67

High Clouds (% Sky Obscured)

67
51
65
79
91
68
42
16
11
6
0
66
34
8
7
6
5
8
13
17
44
46
27
37

ISS Passover

Visibility (miles)

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

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
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Light Rain

Precipitation Probability (%)

32
5
10
7
3
5
10
24
36
32
18
26
34
42
44
41
35
50
60
73
76
74
72
71

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

7
6
6
6
7
8
9
9
9
9
9
11
11
13
14
14
14
14
13
13
12
13
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

13
12
12
12
12
12
12
12
12
13
13
14
14
14
14
13
12
12
12
13
14
14
14
14

Relative Humidity (%)

81
83
87
93
96
96
93
92
90
93
95
95
92
87
85
77
72
65
74
82
92
93
95
95

Pressure (mb)

1005
1005
1006
1006
1006
1006
1006
1006
1006
1006
1006
1007
1006
1006
1006
1006
1006
1006
1006
1006
1005
1005
1005
1004

Ozone (du)

392
393
393
394
396
395
392
389
384
376
372
368
365
363
360
358
356
354
353
352
351
353
355
357

Wednesday 3

Waning Gibbous 88%

00:55

08:25

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
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 05:22, Set: 21:52, Transit: 13:37. Moon - Rise: 00:55, Set: 08:25. Civil Dark: 22:39 - 04:34. Nautical Dark: 23:51 - 03:22. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

55
43
53
71
89
73
49
45
58
70
84
88
91
94
88
80
77
78
74
79
78
82
81
82

Low Clouds (% Sky Obscured)

41
35
34
27
15
16
17
17
32
48
64
71
78
85
62
39
12
19
24
32
31
31
28
33

Medium Clouds (% Sky Obscured)

49
31
25
20
25
26
31
42
42
38
33
41
50
61
60
65
65
48
24
4
7
10
13
14

High Clouds (% Sky Obscured)

46
43
53
64
75
66
49
45
58
70
84
88
91
94
88
80
77
78
74
79
78
82
81
71

ISS Passover

Visibility (miles)

5
4
4
6
7
9
9
9
9
9
9
9
9
8
7
7
8
8
8
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None

Precipitation Probability (%)

72
78
64
51
28
19
9
2
12
16
20
40
53
62
77
76
79
95
95
95
95
77
23
26

Precipitation Amount (mm)

0.4
0.6
0.3
0
0
0
0
0
0
0
0
0
0
0.3
0.3
0
0.2
0.7
1.2
1.7
1.1
0.5
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
96
96
95
92
90
90
92
92
92
89
86
83
82
78
69
62
54
54
53
52
56
59
62

Pressure (mb)

1004
1004
1004
1004
1004
1004
1004
1004
1003
1003
1003
1003
1003
1003
1003
1003
1004
1004
1004
1004
1004
1004
1004
1004

Ozone (du)

365
374
382
386
390
395
390
386
381
382
383
384
383
383
382
381
380
379
378
377
376
373
370
367

Thursday 4

Waning Gibbous 81%

01:18

09:40

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: 05:21, Set: 21:53, Transit: 13:38. Moon - Rise: 01:18, Set: 09:40. Civil Dark: 22:40 - 04:34. Nautical Dark: 23:53 - 03:20. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

83
87
85
84
84
83
80
77
85
92
100
100
100
100
91
81
72

Low Clouds (% Sky Obscured)

33
30
38
46
51
52
56
58
62
66
68
60
51
43
43
43
46

Medium Clouds (% Sky Obscured)

13
17
28
39
49
50
51
52
65
84
100
100
100
100
83
66
49

High Clouds (% Sky Obscured)

62
55
48
51
72
72
64
62
58
57
56
53
64
60
40
23
0

ISS Passover

Visibility (miles)

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

Fog (%)

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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

31
36
36
33
20
35
40
42
45
46
48
64
77
87
77
66
53

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.7
0.5
0.4
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
15
14
14
13
13
13
13
12
12
13
13
13
13
13
13
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

63
65
67
67
68
68
75
83
92
93
96
98
96
96
96
95
96

Pressure (mb)

1004
1005
1005
1005
1005
1005
1005
1005
1005
1006
1006
1006
1007
1007
1007
1008
1008

Ozone (du)

366
365
364
363
361
360
360
360
360
361
361
362
365
367
370
370
370

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

Generated: 29/05/26 21:32:20. Forecast: 29/05/26 to 04/06/26. Timezone: UTC+2.00