Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waxing Crescent 14%

06:54

01:55

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

Sun - Rise: 06:07, Set: 20:37, Transit: 13:22. Moon - Rise: 06:54, Set: 01:55. Civil Dark: 21:16 - 05:28. Nautical Dark: 22:07 - 04:37. Astro Dark: 23:10 - 03:34

Total Clouds (% Sky Obscured)

0
0
0
31
27
24
16
17
53
67
67
75
66
61
57
41
41
64
65
60
59
59
57
54

Low Clouds (% Sky Obscured)

0
0
0
27
23
21
15
17
45
39
54
62
58
49
40
24
21
1
2
2
2
20
30
42

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
11
37
27
22
21
19
20
19
16
36
41
40
37
34
22
14

High 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

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
1
9
16
14
13
18
14
7
3
1
2
2
5
2
8
8

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)

2
2
2
2
2
2
2
2
3
4
5
7
8
9
9
9
9
8
7
5
5
5
6
7

Chance of Frost

Temperature (°C)

3
3
2
2
1
2
4
7
9
11
11
12
12
12
12
12
11
10
9
8
7
6
6
6

Feels Like (°C)

2
2
3
1
1
2
4
7
9
10
10
9
9
9
10
9
9
9
8
7
6
5
5
3

Dew Point (°C)

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

Relative Humidity (%)

85
86
88
88
88
88
82
74
69
67
66
66
68
68
66
67
71
80
88
94
93
94
94
91

Pressure (mb)

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

Ozone (du)

407
408
410
410
412
416
419
421
426
427
430
432
432
430
429
428
427
423
419
415
414
417
419
420

Tuesday 21

Waxing Crescent 24%

07:44

01:55

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

Sun - Rise: 06:05, Set: 20:39, Transit: 13:22. Moon - Rise: 07:44, Set: 01:55. Civil Dark: 21:18 - 05:25. Nautical Dark: 22:10 - 04:34. Astro Dark: 23:14 - 03:30

Total Clouds (% Sky Obscured)

66
45
46
58
57
48
59
43
68
76
56
55
54
36
100
100
100
100
100
64
14
16
6
1

Low Clouds (% Sky Obscured)

54
43
40
56
51
43
59
43
64
58
46
42
47
27
5
26
17
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

12
5
4
0
16
6
0
0
4
28
12
22
0
0
0
0
0
0
2
13
7
9
4
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
17
36
100
100
100
100
100
46
8
3
1
1

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 (%)

7
2
2
0
0
0
9
4
12
9
13
1
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
9
9
9
9
8
9
13
13
13
15
16
16
16
16
17
16
15
15
14
14
14
14
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
93
96
94
90
94
88
82
77
72
71
64
59
57
60
65
69
71
72
70
70
74
79
81

Pressure (mb)

1028
1028
1029
1029
1029
1030
1030
1031
1031
1031
1031
1031
1031
1031
1030
1030
1030
1030
1030
1030
1031
1031
1031
1031

Ozone (du)

417
414
414
413
415
417
416
414
416
417
416
411
407
402
398
395
394
394
394
390
385
381
381
380

Wednesday 22

Waxing Crescent 35%

08:56

02:57

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

Sun - Rise: 06:03, Set: 20:40, Transit: 13:22. Moon - Rise: 08:56, Set: 02:57. Civil Dark: 21:20 - 05:23. Nautical Dark: 22:13 - 04:31. Astro Dark: 23:18 - 03:26

Total Clouds (% Sky Obscured)

1
0
0
4
5
9
34
44
46
29
26
3
10
9
5
9
20
25
25
20
14
25
35
54

Low Clouds (% Sky Obscured)

0
0
0
4
0
7
32
38
39
24
24
0
0
0
0
0
0
0
0
0
7
15
22
26

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
0
0
3
5
6
18
37
35
29
12
3
10
9
5
9
20
25
25
20
8
14
20
37

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
82
83
82
83
85
82
78
70
67
62
61
60
61
61
63
70
75
77
78
85
90
91
94

Pressure (mb)

1031
1031
1031
1031
1031
1031
1032
1032
1032
1032
1032
1032
1032
1031
1031
1031
1031
1031
1031
1032
1032
1032
1032
1032

Ozone (du)

377
375
375
375
372
370
368
367
368
366
364
362
360
359
358
358
359
360
360
360
361
363
366
368

Thursday 23

Waxing Crescent 46%

10:23

03:36

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

Sun - Rise: 06:01, Set: 20:42, Transit: 13:21. Moon - Rise: 10:23, Set: 03:36. Civil Dark: 21:23 - 05:20. Nautical Dark: 22:15 - 04:28. Astro Dark: 23:22 - 03:21

Total Clouds (% Sky Obscured)

57
64
56
50
33
36
42
51
47
43
36
33
30
27
18
10
0
2
4
6
18
28
46
56

Low Clouds (% Sky Obscured)

32
37
38
36
33
36
42
47
43
37
33
21
10
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
8
14
14
8
4
0
0
0
0
4
9
18
20

High Clouds (% Sky Obscured)

51
64
49
25
3
4
4
5
3
1
0
1
1
2
1
1
0
2
4
4
3
1
0
15

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
94
94
94
96
90
77
69
67
65
64
62
59
58
59
64
75
84
85
82
80
82
85

Pressure (mb)

1032
1032
1032
1032
1032
1033
1033
1033
1033
1033
1033
1033
1032
1032
1031
1031
1031
1030
1030
1031
1031
1030
1030
1030

Ozone (du)

370
371
372
372
373
374
376
377
377
377
378
379
380
381
382
383
381
380
379
378
377
377
376
378

Friday 24

First Quarter 58%

11:55

04:00

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

Sun - Rise: 05:58, Set: 20:44, Transit: 13:21. Moon - Rise: 11:55, Set: 04:00. Civil Dark: 21:25 - 05:18. Nautical Dark: 22:18 - 04:25. Astro Dark: 23:26 - 03:17

Total Clouds (% Sky Obscured)

72
85
77
65
58
42
26
16
13
10
6
24
39
55
55
85
85
77
53
36
26
13
1
1

Low Clouds (% Sky Obscured)

0
0
6
12
16
9
4
0
0
0
0
8
20
35
36
33
26
19
10
0
0
0
0
0

Medium Clouds (% Sky Obscured)

27
35
38
42
33
27
19
13
10
6
4
6
7
6
7
12
17
23
19
14
8
2
0
0

High Clouds (% Sky Obscured)

30
55
41
23
2
1
1
0
0
0
0
23
39
55
55
70
70
58
36
13
8
5
1
1

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

Chance of Frost

Temperature (°C)

5
5
4
4
4
5
7
9
11
13
14
15
16
16
17
16
15
14
13
11
9
7
6
5

Feels Like (°C)

4
4
4
4
3
5
7
9
11
13
14
15
16
16
16
17
17
17
15
14
14
13
12
11

Dew Point (°C)

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

Relative Humidity (%)

86
88
89
91
93
93
85
74
66
62
61
59
59
59
58
65
70
78
81
84
88
87
86
85

Pressure (mb)

1030
1030
1029
1029
1029
1029
1029
1029
1029
1029
1028
1028
1027
1027
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026

Ozone (du)

379
381
381
380
378
377
377
378
380
383
385
386
386
387
387
387
387
387
388
390
391
390
390
389

Saturday 25

Waxing Gibbous 69%

13:24

04:16

02 Good
03 Good
04 Good
05 OK
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
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 05:56, Set: 20:46, Transit: 13:21. Moon - Rise: 13:24, Set: 04:16. Civil Dark: 21:27 - 05:15. Nautical Dark: 22:21 - 04:22. Astro Dark: 23:30 - 03:12

Total Clouds (% Sky Obscured)

1
1
18
39
62
58
60
55
65
71
77
77
79
82
74
66
62
57
53
49
50
47
47
45

Low Clouds (% Sky Obscured)

0
0
14
22
31
26
22
22
25
31
41
50
51
49
51
53
54
57
53
49
50
47
47
45

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
1

High Clouds (% Sky Obscured)

1
1
9
15
9
3
6
14
15
17
37
45
45
45
36
19
7
2
1
1
1
1
3
19

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
2
1
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)

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

Chance of Frost

Temperature (°C)

4
4
4
4
4
4
6
8
10
11
12
14
13
13
13
12
11
11
9
8
7
7
6
6

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
86
86
86
85
85
76
69
62
59
58
55
56
56
56
61
66
72
77
82
88
91
93
94

Pressure (mb)

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

Ozone (du)

390
391
392
395
399
402
403
404
406
404
402
400
399
398
397
393
389
385
381
378
374
372
371
369

Sunday 26

Waxing Gibbous 78%

14:49

04:26

Sun - Rise: 05:54, Set: 20:48, Transit: 13:21. Moon - Rise: 14:49, Set: 04:26. Civil Dark: 21:29 - 05:13. Nautical Dark: 22:23 - 04:19. Astro Dark: 23:34 - 03:07

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Cathedral's Quarter, Belfast, United Kingdom (54.60,-5.93)

Generated: 20/04/26 02:09:12. Forecast: 20/04/26 to 26/04/26. Timezone: UTC+1.00