Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 25

First Quarter 49%

10:42

03:55

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

Sun - Rise: 06:26, Set: 19:01, Transit: 12:45. Moon - Rise: 10:42, Set: 03:55. Civil Dark: 19:35 - 05:52. Nautical Dark: 20:16 - 05:12. Astro Dark: 20:58 - 04:28

Total Clouds (% Sky Obscured)

73
79
84
83
39
96
100
100
32
65
45
61
98
96
40
55
76
73
40
66
86
85
85
87

Low Clouds (% Sky Obscured)

52
41
37
50
39
36
47
42
28
26
36
35
43
35
35
55
59
54
40
38
37
64
69
62

Medium Clouds (% Sky Obscured)

73
79
81
30
2
68
100
100
25
40
28
58
89
56
40
55
74
58
3
16
71
48
41
52

High Clouds (% Sky Obscured)

7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
6

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
6
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 (%)

95
95
95
12
10
22
36
36
9
3
13
6
9
20
22
24
38
46
42
25
34
33
37
45

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)

19
19
16
12
8
9
9
10
11
10
9
9
10
9
9
9
10
14
15
16
18
16
17
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

65
71
71
74
75
75
77
76
80
80
79
77
74
74
76
77
72
70
64
52
51
52
51
52

Pressure (mb)

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

Ozone (du)

419
422
426
428
430
435
436
436
437
438
437
431
436
446
441
434
428
423
417
411
406
401
396
392

Thursday 26

Waxing Gibbous 61%

12:07

04:32

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

Sun - Rise: 06:24, Set: 19:03, Transit: 12:44. Moon - Rise: 12:07, Set: 04:32. Civil Dark: 19:37 - 05:50. Nautical Dark: 20:18 - 05:09. Astro Dark: 21:01 - 04:26

Total Clouds (% Sky Obscured)

80
58
42
70
82
58
66
30
26
13
28
26
40
33
59
55
92
50
78
63
68
78
78
99

Low Clouds (% Sky Obscured)

50
48
32
45
39
41
25
12
2
10
14
24
34
33
35
28
55
41
48
38
12
39
37
72

Medium Clouds (% Sky Obscured)

55
20
25
34
36
9
19
3
11
3
7
2
0
0
25
0
26
14
30
24
68
74
71
90

High Clouds (% Sky Obscured)

10
10
1
0
0
2
19
9
1
0
0
0
0
0
3
27
71
12
64
1
7
3
11
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 (%)

41
30
25
17
7
4
8
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)

16
14
12
9
6
6
5
4
4
4
5
5
5
5
6
6
6
8
9
11
12
12
12
11

Chance of Frost

Temperature (°C)

6
5
5
4
3
3
2
2
1
1
1
1
1
1
1
1
3
4
6
7
9
9
10
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

56
62
68
73
76
79
79
81
80
81
81
83
83
83
86
94
91
79
69
63
60
58
57
56

Pressure (mb)

1019
1019
1020
1020
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1023
1023
1023
1023
1023
1023
1023
1022
1021
1021

Ozone (du)

389
386
382
376
371
367
363
358
356
353
351
348
344
339
338
334
332
330
330
331
332
331
331
331

Friday 27

Waxing Gibbous 72%

13:33

04:57

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
13 Bad
14 Bad
15 Bad

Sun - Rise: 06:22, Set: 19:05, Transit: 12:44. Moon - Rise: 13:33, Set: 04:57. Civil Dark: 19:39 - 05:47. Nautical Dark: 20:19 - 05:06. Astro Dark: 21:03 - 04:23

Total Clouds (% Sky Obscured)

97
100
100
100
100
100
99
100
100
94
98
95
59
74
59
39
48
59
70
50
42
42
44
46

Low Clouds (% Sky Obscured)

89
100
100
100
91
89
90
100
100
89
79
48
48
71
54
35
41
54
58
47
42
42
44
46

Medium Clouds (% Sky Obscured)

73
74
73
74
84
96
98
100
100
88
96
92
36
40
40
39
48
55
26
0
0
2
4
6

High Clouds (% Sky Obscured)

1
35
93
99
100
100
5
100
100
5
5
5
10
10
15
25
48
40
25
8
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
6
5
5
4
3
5
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
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

7
12
27
45
51
53
61
75
95
77
76
80
80
75
57
16
20
26
29
19
5
6
4
1

Precipitation Amount (mm)

0
0
0
0
0
0
0.3
0.3
0.7
0.3
0.4
0.4
0.4
0.3
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

2
3
4
3
3
4
4
4
5
6
6
7
7
6
5
5
5
6
6
5
3
1
-0
-1

Relative Humidity (%)

57
63
69
70
73
75
78
79
85
91
94
96
96
96
94
93
91
88
85
73
62
54
49
49

Pressure (mb)

1021
1020
1020
1020
1020
1019
1019
1019
1018
1017
1017
1017
1017
1018
1018
1019
1020
1021
1021
1022
1022
1023
1023
1024

Ozone (du)

332
333
333
331
330
330
331
332
332
333
333
335
336
338
341
343
346
349
355
362
367
377
385
394

Saturday 28

Waxing Gibbous 82%

15:58

06:15

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

Sun - Rise: 07:19, Set: 19:06, Transit: 13:44. Moon - Rise: 15:58, Set: 06:15. Civil Dark: 19:40 - 06:45. Nautical Dark: 20:21 - 06:04. Astro Dark: 21:05 - 05:20

Total Clouds (% Sky Obscured)

41
40
33
21
13
2
15
29
46
36
23
12
15
19
21
31
40
48
63
80
97
100
100
93

Low Clouds (% Sky Obscured)

41
40
33
21
13
1
14
27
43
34
23
12
15
19
21
31
40
48
53
51
49
33
16
0

Medium Clouds (% Sky Obscured)

4
2
0
0
1
0
7
12
20
13
7
0
0
0
0
0
0
0
18
36
50
59
89
62

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
33
67
97
100
100
93

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 (%)

6
4
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
7
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)

15
13
11
9
8
7
6
6
6
6
6
6
6
6
5
5
5
8
9
11
12
14
14
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
5
5
4
4
3
3
2
2
2
1
2
2
2
2
2
5
6
6
6
6
6
5
5

Dew Point (°C)

1
1
2
2
2
2
1
1
1
0
0
0
0
0
1
1
1
1
1
1
0
1
0
0

Relative Humidity (%)

55
60
68
75
79
82
82
82
80
79
80
80
80
82
83
83
76
66
60
55
50
49
48
50

Pressure (mb)

1024
1025
1026
1026
1027
1028
1028
1029
1029
1029
1029
1029
1029
1030
1030
1030
1030
1030
1030
1030
1029
1028
1028
1026

Ozone (du)

396
398
404
407
411
415
416
414
410
410
408
404
398
393
392
388
386
385
383
385
384
382
381
376

Sunday 29

Waxing Gibbous 89%

No Rise

06:28

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
13 Bad
14 Bad
15 Bad

Sun - Rise: 07:17, Set: 20:08, Transit: 13:43. Moon - Rise: No Rise, Set: 06:28. Civil Dark: 20:42 - 06:43. Nautical Dark: 21:23 - 06:02. Astro Dark: 22:07 - 05:17

Total Clouds (% Sky Obscured)

93
100
100
100
100
100
100
100
100
100
100
100
100
94
89
84
68
65
59
63
67
71
79
88

Low Clouds (% Sky Obscured)

0
9
24
40
60
80
100
82
65
47
48
49
50
54
57
58
62
56
54
52
52
54
60
61

Medium Clouds (% Sky Obscured)

62
63
90
100
100
100
100
100
100
91
100
75
96
84
67
80
68
65
59
63
58
53
48
41

High Clouds (% Sky Obscured)

93
100
100
100
67
33
0
0
0
0
0
0
4
0
0
0
5
15
20
15
10
5
6
10

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
2
4
9
39
61
88
95
95
95
95
73
44
42
40
43
30
31
34
33
34
34
33
32

Precipitation Amount (mm)

0
0
0
0
0
0.2
0.5
0.9
0.8
1.1
0.8
0.4
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

10
10
9
8
8
8
8
8
8
8
8
8
8
8
8
8
8
9
10
10
10
10
10
10

Feels Like (°C)

5
5
4
3
3
3
3
3
3
3
3
3
3
3
3
3
3
4
5
4
5
5
5
5

Dew Point (°C)

0
2
3
3
4
3
4
6
7
7
7
6
6
6
6
6
6
7
8
7
6
5
3
3

Relative Humidity (%)

50
56
63
69
73
71
75
84
91
91
90
90
91
91
91
90
90
88
87
84
76
68
61
61

Pressure (mb)

1026
1026
1024
1023
1022
1020
1019
1018
1017
1017
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016

Ozone (du)

376
372
372
370
367
364
362
360
359
356
352
346
342
340
337
337
336
335
334
332
332
331
330
329

Monday 30

Waxing Gibbous 95%

17:19

06:39

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
13 Bad
14 Bad
15 Bad

Sun - Rise: 07:15, Set: 20:10, Transit: 13:43. Moon - Rise: 17:19, Set: 06:39. Civil Dark: 20:44 - 06:40. Nautical Dark: 21:25 - 05:59. Astro Dark: 22:09 - 05:14

Total Clouds (% Sky Obscured)

95
93
94
95
94
93
91
90
88
85
81
85
84
85
86
84
79
76
71
70
74
76
76
78

Low Clouds (% Sky Obscured)

62
51
40
29
38
48
53
64
77
85
81
84
80
85
86
84
79
76
71
70
74
76
76
78

Medium Clouds (% Sky Obscured)

35
30
25
15
14
18
13
9
4
0
1
1
2
2
3
3
3
3
2
15
29
42
30
14

High Clouds (% Sky Obscured)

11
31
34
20
20
19
13
14
17
20
30
27
14
4
4
4
3
2
1
1
1
2
5
7

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

Precipitation Probability (%)

31
42
51
58
51
45
37
42
42
38
34
28
17
16
14
5
8
10
3
4
4
3
6
5

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

19
18
17
17
16
15
15
15
15
16
17
16
15
15
14
14
13
14
15
17
17
18
18
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
5
5
5
4
1
2
3
3
2
3
3
4
3
3
3
3
4
4
4
5
5
5
6

Dew Point (°C)

3
3
2
2
2
2
2
3
3
3
4
4
4
4
4
5
4
4
5
5
5
6
6
7

Relative Humidity (%)

61
61
63
65
66
68
69
71
73
73
74
77
78
81
81
82
81
79
79
77
78
78
80
81

Pressure (mb)

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

Ozone (du)

328
326
325
325
324
323
322
321
320
320
319
317
316
314
314
315
315
314
313
311
311
310
309
310

Tuesday 31

Waxing Gibbous 99%

18:37

06:49

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
13 Bad

Sun - Rise: 07:12, Set: 20:11, Transit: 13:43. Moon - Rise: 18:37, Set: 06:49. Civil Dark: 20:46 - 06:38. Nautical Dark: 21:27 - 05:56. Astro Dark: 22:12 - 05:12

Total Clouds (% Sky Obscured)

76
71
64
58
61
64
67
72
78
85
79
72
64
66
68
71
68
65
62
68
71
75

Low Clouds (% Sky Obscured)

76
71
64
58
57
56
55
64
73
83
76
68
61
63
65
68
65
62
60
60
60
63

Medium Clouds (% Sky Obscured)

0
0
0
0
4
7
13
9
4
0
0
0
0
12
27
44
33
23
12
17
21
27

High Clouds (% Sky Obscured)

9
6
2
0
0
0
0
0
0
0
10
18
29
38
52
65
48
24
17
15
10
9

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

Fog (%)

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

Precipitation Probability (%)

1
4
5
2
7
9
2
7
12
5
8
9
3
4
4
0
2
3
0
6
5
5

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

Wind Speed/Direction (mph)

18
19
18
16
15
14
13
11
11
10
10
9
9
8
8
9
9
10
12
13
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
6
6
6
6
6
6
6
6
5
7
6
6
6
5
5
6
6
6
6
6

Dew Point (°C)

7
8
7
7
7
7
6
6
7
7
7
7
7
6
6
6
6
6
7
7
7
7

Relative Humidity (%)

81
83
84
87
88
90
90
91
91
90
91
93
93
93
91
88
87
84
81
80
80
81

Pressure (mb)

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

Ozone (du)

311
312
314
317
319
320
321
323
324
326
328
328
329
330
332
333
335
336
336
337
338
339

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

Generated: 25/03/26 16:47:25. Forecast: 25/03/26 to 31/03/26. Timezone: UTC+1.00