Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 5

Waning Gibbous 98%

15:41

09:51

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 08:29, Set: 15:59, Transit: 12:14. Moon - Rise: 15:41, Set: 09:51. Civil Dark: 16:43 - 07:47. Nautical Dark: 17:29 - 07:00. Astro Dark: 18:13 - 06:16

Total Clouds (% Sky Obscured)

93
93
100
100
100
100
100
100
100
100
100
100
100
100
99
97
92
97
89
91
83
77
71
78

Low Clouds (% Sky Obscured)

17
36
84
94
100
100
100
96
100
94
95
85
63
74
87
75
67
70
53
41
61
63
51
61

Medium Clouds (% Sky Obscured)

93
93
100
100
100
100
91
99
100
97
100
100
100
90
96
94
89
84
32
72
9
21
37
50

High Clouds (% Sky Obscured)

93
48
90
90
100
100
100
100
100
100
97
20
48
39
61
44
45
40
65
70
53
45
0
2

ISS Passover

Visibility (miles)

9
9
9
9
6
3
4
4
2
6
2
8
9
9
8
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
6
3
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
Light Rain
Light Rain
Moderate Rain
Light Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

1
20
53
92
95
95
95
95
95
95
88
68
49
50
36
24
13
9
4
3
2
2
6
31

Precipitation Amount (mm)

0
0
0
0.4
1.5
3.3
1.4
3.9
0.8
0.9
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
9
12
17
19
24
26
26
27
24
17
11
10
9
9
11
11
10
9
8
7
6
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
91
85
81
85
90
90
90
93
91
93
93
90
95
95
91
91
90
91
93
93
93
94
94

Pressure (mb)

996
995
994
992
990
988
986
984
982
980
978
978
978
978
978
979
979
979
980
980
981
981
982
983

Ozone (du)

309
306
301
300
300
298
300
301
298
299
298
296
294
295
299
299
294
291
289
288
289
288
286
284

Saturday 6

Waning Gibbous 93%

16:55

10:58

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 08:30, Set: 15:59, Transit: 12:15. Moon - Rise: 16:55, Set: 10:58. Civil Dark: 16:43 - 07:48. Nautical Dark: 17:29 - 07:01. Astro Dark: 18:13 - 06:17

Total Clouds (% Sky Obscured)

100
100
100
82
88
100
100
99
100
100
94
90
91
97
77
75
85
48
72
97
72
100
100
100

Low Clouds (% Sky Obscured)

90
89
79
68
76
88
100
96
100
100
89
80
90
95
49
57
47
47
44
24
32
29
41
49

Medium Clouds (% Sky Obscured)

48
57
51
58
62
100
100
80
89
80
75
42
59
51
28
18
27
6
8
70
72
100
100
99

High Clouds (% Sky Obscured)

5
4
69
7
13
100
75
19
40
6
0
0
0
0
3
8
35
35
66
95
53
100
100
98

ISS Passover

Visibility (miles)

7
9
9
9
9
6
3
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

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

Precipitation Probability (%)

57
72
47
26
40
61
95
88
47
30
23
14
3
16
8
20
5
2
0
1
0
1
5
17

Precipitation Amount (mm)

0.3
0.5
0
0
0
0
1.4
1.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
5
6
7
10
10
10
11
13
15
16
14
13
12
12
11
11
10
9
8
5
3
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
94
96
96
93
95
96
95
95
95
91
93
95
90
91
95
94
93
94
96
94
94
93
93

Pressure (mb)

983
984
985
985
986
987
987
988
989
990
991
993
994
995
996
996
997
997
998
998
998
997
997
996

Ozone (du)

283
285
289
290
288
283
279
279
277
281
284
287
284
285
288
287
288
285
283
284
285
287
289
290

Sunday 7

Waning Gibbous 86%

18:26

11:40

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 OK
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 08:32, Set: 15:58, Transit: 12:15. Moon - Rise: 18:26, Set: 11:40. Civil Dark: 16:42 - 07:49. Nautical Dark: 17:29 - 07:02. Astro Dark: 18:13 - 06:18

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
97
100
80
82
56
94
68
27
81
70
66
66
88
93
98
92
88

Low Clouds (% Sky Obscured)

70
88
93
91
100
100
100
70
90
68
58
50
55
46
27
26
39
53
66
58
52
49
60
67

Medium Clouds (% Sky Obscured)

100
100
100
100
97
96
98
95
100
61
51
2
83
25
0
38
34
30
26
50
81
94
69
26

High Clouds (% Sky Obscured)

100
100
100
100
100
62
43
35
35
35
67
36
69
1
2
61
43
30
12
48
40
59
48
11

ISS Passover

Visibility (miles)

9
8
7
7
4
1
0
0
3
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

62
90
95
95
95
74
68
79
58
20
12
0
1
2
0
0
2
4
4
16
24
40
31
21

Precipitation Amount (mm)

0.3
0.6
0.4
1.6
0.6
0
0
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
7
10
13
16
17
12
6
14
13
14
16
14
13
12
9
6
5
4
4
4
4
6
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
96
96
96
96
98
98
100
95
91
93
85
82
85
85
90
93
93
91
91
91
93
91
91

Pressure (mb)

996
995
994
993
992
991
990
989
990
990
991
993
994
995
995
996
997
997
997
997
997
997
997
997

Ozone (du)

294
294
292
295
294
296
297
297
297
303
305
313
316
324
330
336
340
343
349
349
350
350
348
351

Monday 8

Waning Gibbous 77%

20:01

12:04

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 08:33, Set: 15:58, Transit: 12:15. Moon - Rise: 20:01, Set: 12:04. Civil Dark: 16:42 - 07:50. Nautical Dark: 17:29 - 07:03. Astro Dark: 18:12 - 06:19

Total Clouds (% Sky Obscured)

67
87
93
78
72
72
65
52
63
65
76
88
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

67
68
62
43
49
50
46
40
33
32
30
34
67
63
56
51
57
61
68
73
78
82
88
94

Medium Clouds (% Sky Obscured)

0
0
0
1
1
1
1
0
0
35
57
80
100
100
100
100
100
100
79
94
100
100
99
98

High Clouds (% Sky Obscured)

0
25
47
60
40
37
37
15
45
55
67
83
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
3
3
0
2
7
2
1
0
0
0

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

Precipitation Probability (%)

3
3
2
1
0
0
0
0
1
0
1
3
27
65
95
95
95
85
56
65
82
86
89
90

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.8
0.7
0.8
0.4
0
0.2
0.4
0.4
0.4
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
90
84
84
88
87
87
91
93
93
93
93
93
94
96
98
98
98
96
98
98
98
98
100

Pressure (mb)

998
999
999
1000
1000
1001
1001
1001
1001
1002
1002
1002
1001
1001
1001
1000
999
998
998
997
996
994
993
992

Ozone (du)

352
352
351
349
351
352
353
361
357
354
351
349
348
341
331
327
316
312
312
309
309
306
305
305

Tuesday 9

Waning Gibbous 67%

21:31

12:20

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 08:34, Set: 15:58, Transit: 12:16. Moon - Rise: 21:31, Set: 12:20. Civil Dark: 16:42 - 07:51. Nautical Dark: 17:29 - 07:04. Astro Dark: 18:12 - 06:20

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
99
98
100
100
100
97
93
90
83
75
69
71
75
77
77
77

Low Clouds (% Sky Obscured)

99
99
98
98
100
95
98
98
98
93
95
96
98
94
90
84
81
75
69
71
75
77
74
61

Medium Clouds (% Sky Obscured)

97
94
90
88
92
96
100
85
76
69
99
99
100
94
87
86
83
75
69
71
75
77
77
77

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
75
50
30
34
56
51
51
51
51
51
46
45
40
35
30
31
49

ISS Passover

Visibility (miles)

0
2
3
7
9
9
9
9
9
9
9
9
9
9
8
7
5
7
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
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
Light Rain
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

89
90
88
87
72
55
24
31
29
24
78
68
74
67
62
52
47
47
42
33
24
8
15
10

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

12
14
11
9
9
9
9
10
9
10
11
9
11
12
11
10
9
9
10
10
10
10
10
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

100
98
98
98
96
96
96
96
96
96
96
95
93
95
95
93
93
93
93
93
94
94
94
93

Pressure (mb)

991
990
990
989
988
988
987
987
988
988
989
989
990
991
992
993
994
995
995
996
996
997
997
997

Ozone (du)

302
300
300
298
297
296
295
295
296
295
295
297
298
299
301
303
304
304
305
305
307
309
310
315

Wednesday 10

Waning Gibbous 56%

22:55

12:30

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

Sun - Rise: 08:35, Set: 15:58, Transit: 12:16. Moon - Rise: 22:55, Set: 12:30. Civil Dark: 16:42 - 07:52. Nautical Dark: 17:28 - 07:05. Astro Dark: 18:12 - 06:21

Total Clouds (% Sky Obscured)

81
79
75
70
55
41
27
41
48
53
67
83
98
99
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

46
39
32
25
24
35
27
41
48
51
50
48
47
42
37
35
40
44
47
47
49
47
48
50

Medium Clouds (% Sky Obscured)

81
76
63
51
34
17
0
5
10
14
39
64
89
84
78
68
80
87
96
97
98
99
99
99

High Clouds (% Sky Obscured)

55
44
31
30
20
9
0
2
4
5
31
59
82
57
43
39
62
78
93
96
98
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
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
None
None
None
None
None

Precipitation Probability (%)

2
4
2
0
4
2
0
1
1
0
0
0
0
1
2
4
42
60
69
54
37
6
7
7

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

6
6
6
6
7
6
6
6
6
6
6
6
6
6
6
6
6
6
7
7
7
7
7
7

Relative Humidity (%)

93
93
91
90
90
88
88
90
90
91
91
91
93
91
91
91
91
91
93
93
91
90
88
88

Pressure (mb)

998
999
999
1000
1001
1001
1002
1003
1003
1004
1005
1005
1006
1007
1007
1007
1007
1006
1006
1006
1005
1005
1005
1005

Ozone (du)

320
325
332
339
346
337
327
318
317
316
315
311
308
305
305
304
304
302
301
300
301
302
304
305

Thursday 11

Third Quarter 46%

00:15

12:38

Sun - Rise: 08:36, Set: 15:57, Transit: 12:17. Moon - Rise: 00:15, Set: 12:38. Civil Dark: 16:42 - 07:53. Nautical Dark: 17:28 - 07:06. Astro Dark: 18:12 - 06:22

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: 05/12/25 07:08:02. Forecast: 05/12/25 to 11/12/25. Timezone: UTC+0.00