Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 5

Waning Gibbous 85%

00:56

08:07

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

Sun - Rise: 07:01, Set: 20:20, Transit: 13:41. Moon - Rise: 00:56, Set: 08:07. Civil Dark: 20:55 - 06:26. Nautical Dark: 21:37 - 05:43. Astro Dark: 22:23 - 04:57

Total Clouds (% Sky Obscured)

55
52
48
53
87
71
98
70
48
57
7
19
5
11
5
6
11
14
14
61
65
92
93
75

Low Clouds (% Sky Obscured)

38
39
42
53
58
49
0
26
0
0
0
0
0
0
0
0
0
0
7
18
37
46
50
49

Medium Clouds (% Sky Obscured)

0
0
0
19
20
6
32
6
0
0
0
0
0
0
0
0
0
3
3
12
5
40
49
20

High Clouds (% Sky Obscured)

10
4
3
53
87
39
95
45
48
57
7
19
5
11
5
6
11
14
14
33
36
45
45
34

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
5
0
10
0
0
0
0
0
1
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)

19
21
21
19
12
8
7
7
7
7
7
7
6
5
5
5
5
5
6
6
6
6
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
6
7
6
6
6
6
4
4
2
2
2
2
2
1
1
1
4
5
7
8
9
9
10

Dew Point (°C)

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

Relative Humidity (%)

60
62
64
65
67
68
68
69
70
69
72
76
76
79
82
85
83
74
59
51
47
44
42
41

Pressure (mb)

1017
1018
1018
1019
1020
1021
1022
1023
1023
1024
1025
1025
1025
1026
1026
1027
1028
1028
1029
1029
1029
1029
1029
1028

Ozone (du)

386
382
385
386
383
381
381
381
380
380
382
382
381
379
375
374
374
373
372
371
368
368
369
370

Monday 6

Waning Gibbous 78%

02:05

08:40

16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 OK
22 Bad
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
13 Good
14 Good
15 Good

Sun - Rise: 06:59, Set: 20:22, Transit: 13:41. Moon - Rise: 02:05, Set: 08:40. Civil Dark: 20:57 - 06:24. Nautical Dark: 21:39 - 05:41. Astro Dark: 22:26 - 04:54

Total Clouds (% Sky Obscured)

82
73
77
56
56
34
51
8
5
4
5
3
3
5
1
16
2
4
2
2
2
1
1
0

Low Clouds (% Sky Obscured)

50
48
50
51
39
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

28
5
15
1
2
1
0
0
0
0
0
0
0
3
0
11
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

43
35
33
11
18
30
51
7
2
2
1
0
0
0
0
0
1
1
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)

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

Chance of Frost

Temperature (°C)

13
13
13
12
10
8
7
6
6
5
5
5
4
4
4
4
4
6
8
11
12
13
14
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

40
41
43
53
62
68
67
67
68
68
68
68
69
69
71
71
72
66
59
53
47
45
44
43

Pressure (mb)

1028
1027
1027
1027
1027
1028
1028
1028
1028
1028
1028
1027
1027
1027
1027
1027
1028
1028
1028
1028
1028
1027
1027
1027

Ozone (du)

371
371
371
371
370
369
368
368
369
369
368
369
370
372
372
372
373
374
374
375
376
377
379
381

Tuesday 7

Waning Gibbous 69%

03:05

09:27

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 OK
10 OK
11 OK
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 06:56, Set: 20:23, Transit: 13:41. Moon - Rise: 03:05, Set: 09:27. Civil Dark: 20:58 - 06:21. Nautical Dark: 21:41 - 05:38. Astro Dark: 22:28 - 04:51

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
11
25
25
19
46
90
86
67

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
44
30
16

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
11
25
25
19
45
85
82
64

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)

11
11
10
9
8
8
8
8
9
9
9
9
8
8
7
7
7
9
10
10
11
10
10
10

Chance of Frost

Temperature (°C)

15
15
15
14
12
10
9
8
8
7
7
6
6
5
5
5
5
7
10
12
14
16
17
18

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

43
45
51
58
65
67
69
73
75
74
71
70
71
72
75
78
78
73
63
58
53
50
45
43

Pressure (mb)

1026
1026
1026
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1026
1026

Ozone (du)

380
378
377
376
375
372
370
370
371
372
372
372
371
369
366
365
365
366
369
370
370
371
374
378

Wednesday 8

Waning Gibbous 60%

03:52

10:26

16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
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: 06:54, Set: 20:25, Transit: 13:40. Moon - Rise: 03:52, Set: 10:26. Civil Dark: 21:00 - 06:19. Nautical Dark: 21:43 - 05:36. Astro Dark: 22:31 - 04:48

Total Clouds (% Sky Obscured)

69
71
85
87
61
62
49
57
59
56
48
43
33
43
55
71
79
91
96
98
94
88
97
100

Low Clouds (% Sky Obscured)

0
0
0
0
2
3
5
14
24
36
25
13
0
23
45
68
62
57
52
55
58
62
54
45

Medium Clouds (% Sky Obscured)

3
2
1
0
5
13
20
13
11
31
48
35
33
43
49
19
21
39
58
59
54
46
50
50

High Clouds (% Sky Obscured)

65
64
68
73
39
57
39
42
45
40
25
5
5
2
5
7
38
69
96
98
94
88
97
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
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
2
5
6
5
4

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

Chance of Frost

Temperature (°C)

18
19
18
16
14
13
12
10
9
9
8
8
8
8
7
7
8
9
11
13
14
15
17
17

Feels Like (°C)

15
16
15
14
11
10
9
7
6
5
4
5
4
4
4
4
4
6
8
9
10
13
14
14

Dew Point (°C)

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

Relative Humidity (%)

43
45
49
55
61
62
63
64
66
65
68
69
70
70
69
69
71
68
60
57
52
47
45
44

Pressure (mb)

1026
1025
1025
1025
1025
1025
1026
1026
1026
1026
1026
1026
1025
1025
1025
1025
1025
1025
1026
1026
1025
1025
1025
1025

Ozone (du)

379
378
376
376
378
379
382
383
384
388
392
392
393
392
390
390
389
387
386
384
382
380
379
377

Thursday 9

Waning Gibbous 50%

04:26

11:36

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 OK
14 OK
15 OK

Sun - Rise: 06:52, Set: 20:27, Transit: 13:40. Moon - Rise: 04:26, Set: 11:36. Civil Dark: 21:02 - 06:17. Nautical Dark: 21:45 - 05:33. Astro Dark: 22:33 - 04:45

Total Clouds (% Sky Obscured)

97
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
95
91
87
73
59
46
40
36

Low Clouds (% Sky Obscured)

36
45
52
62
66
70
84
74
59
44
29
15
0
8
14
22
48
48
42
40
36
29
15
7

Medium Clouds (% Sky Obscured)

47
51
56
60
60
61
62
60
54
47
42
36
28
33
37
40
0
0
0
0
0
0
3
5

High Clouds (% Sky Obscured)

97
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
90
80
71
53
35
17
16
17

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
1
0
0
0
0
1
3
4
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)

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

Chance of Frost

Temperature (°C)

16
16
16
15
13
12
11
10
10
9
9
8
8
7
7
7
7
9
11
13
15
16
17
18

Feels Like (°C)

13
14
14
13
10
9
8
7
7
7
6
6
5
4
4
4
5
5
6
7
7
8
9
16

Dew Point (°C)

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

Relative Humidity (%)

43
42
47
55
60
60
60
60
60
59
59
60
59
59
62
62
65
63
60
59
53
49
45
44

Pressure (mb)

1024
1024
1024
1024
1024
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1026
1026
1026
1025
1025
1025
1024

Ozone (du)

378
378
376
374
374
374
371
371
370
368
366
364
362
360
359
359
358
357
356
355
355
354
354
354

Friday 10

Third Quarter 40%

04:51

12:52

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

Sun - Rise: 06:50, Set: 20:29, Transit: 13:40. Moon - Rise: 04:51, Set: 12:52. Civil Dark: 21:04 - 06:14. Nautical Dark: 21:47 - 05:30. Astro Dark: 22:36 - 04:42

Total Clouds (% Sky Obscured)

32
44
51
63
59
51
43
60
73
86
69
62
73
79
84
89
64
41
16
12
9
6
9
14

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)

7
13
16
13
11
13
8
8
8
14
14
17
22
28
32
35
27
18
6
4
2
0
0
0

High Clouds (% Sky Obscured)

15
24
15
6
6
6
5
29
52
76
63
59
50
33
19
5
4
2
1
3
4
5
6
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
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)

7
7
6
4
3
2
2
4
4
5
6
6
7
7
8
8
9
9
10
11
12
12
13
13

Chance of Frost

Temperature (°C)

18
18
17
15
14
13
12
11
11
10
10
9
9
8
8
8
8
10
13
15
17
19
20
21

Feels Like (°C)

15
15
15
15
16
13
13
13
13
12
12
8
8
8
8
7
6
7
7
8
9
11
11
21

Dew Point (°C)

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

Relative Humidity (%)

42
41
47
53
61
62
62
63
66
68
72
75
78
81
82
81
81
74
69
63
61
58
55
55

Pressure (mb)

1024
1024
1023
1023
1022
1022
1022
1022
1021
1021
1020
1020
1019
1019
1019
1018
1018
1018
1017
1017
1017
1016
1015
1015

Ozone (du)

354
354
355
355
356
357
358
360
361
363
364
364
365
365
368
372
375
375
375
375
374
373
372
369

Saturday 11

Waning Crescent 30%

05:10

14:12

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

Sun - Rise: 06:47, Set: 20:30, Transit: 13:40. Moon - Rise: 05:10, Set: 14:12. Civil Dark: 21:06 - 06:12. Nautical Dark: 21:50 - 05:28. Astro Dark: 22:38 - 04:38

Total Clouds (% Sky Obscured)

15
38
60
84
58
32
4
3
2
2
5
7
8
28
47
67
53
39
25
24
20
15

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
2
5
3
4
4
5
5
5
10

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

High Clouds (% Sky Obscured)

8
33
57
83
58
32
4
3
2
2
5
7
8
28
47
67
53
39
25
24
20
15

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
8
8
7
8
8
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 (%)

0
0
0
0
0
0
0
1
2
0
0
0
0
2
4
5
13
14
7
12
10
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

Wind Speed/Direction (mph)

13
13
12
10
9
10
10
11
11
10
9
9
9
9
9
9
10
10
11
12
12
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

20
20
20
21
21
15
16
16
16
15
15
13
13
13
13
12
11
9
8
8
9
9

Dew Point (°C)

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

Relative Humidity (%)

54
53
59
65
71
74
78
82
84
86
89
92
93
96
93
91
88
87
85
84
83
80

Pressure (mb)

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

Ozone (du)

366
363
362
361
360
360
360
360
360
359
359
357
356
355
355
356
356
356
355
355
355
355

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

Generated: 05/04/26 16:55:01. Forecast: 05/04/26 to 11/04/26. Timezone: UTC+2.00