Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 26

Waxing Crescent 39%

11:50

23:36

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

Sun - Rise: 08:46, Set: 16:03, Transit: 12:25. Moon - Rise: 11:50, Set: 23:36. Civil Dark: 16:47 - 08:01. Nautical Dark: 17:34 - 07:14. Astro Dark: 18:18 - 06:30

Total Clouds (% Sky Obscured)

14
17
19
35
49
47
29
24
23
28
25
23
31
27
22
23
19
28
33
45
67
65
84
93

Low Clouds (% Sky Obscured)

14
17
19
35
49
47
29
24
22
27
25
23
31
27
22
23
17
27
32
45
64
63
79
88

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)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
0
0
0
3
10
21
18

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
3
2
2
2
2
2
3
2
2
2
2
2
2
2
2
2
3
3
3
4
4
4
4

Relative Humidity (%)

91
89
88
86
82
82
86
91
91
93
93
94
94
93
94
93
93
93
93
88
86
86
83
85

Pressure (mb)

1035
1036
1036
1037
1037
1038
1038
1038
1038
1038
1038
1039
1039
1039
1039
1040
1040
1040
1041
1041
1040
1040
1040
1040

Ozone (du)

331
331
333
335
335
336
336
334
332
328
322
316
313
308
304
301
298
295
294
294
294
293
291
290

Saturday 27

First Quarter 50%

11:58

01:01

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: 08:46, Set: 16:04, Transit: 12:25. Moon - Rise: 11:58, Set: 01:01. Civil Dark: 16:48 - 08:01. Nautical Dark: 17:35 - 07:14. Astro Dark: 18:19 - 06:30

Total Clouds (% Sky Obscured)

82
80
88
92
89
75
78
84
91
95
95
97
98
98
98
97
94
92
100
97
100
100
98
99

Low Clouds (% Sky Obscured)

80
78
88
89
87
72
64
63
70
69
81
88
96
94
88
90
80
67
70
80
80
80
86
89

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
13
20
4
0
11
6
21
15

High Clouds (% Sky Obscured)

4
4
0
11
17
41
70
71
72
77
72
71
62
57
55
52
50
77
96
82
80
87
82
90

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
1
0
0
0
0
0
0
3
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)

12
11
11
11
10
10
11
12
11
10
10
8
7
8
8
7
7
7
7
6
6
6
7
6

Chance of Frost

Temperature (°C)

6
6
5
6
6
6
6
6
6
5
5
5
5
5
5
5
5
5
5
6
6
6
6
6

Feels Like (°C)

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

Dew Point (°C)

3
3
2
2
2
2
3
3
4
3
3
3
2
2
2
2
2
2
2
3
3
3
4
4

Relative Humidity (%)

82
80
80
78
75
75
82
83
86
85
82
85
80
79
80
82
82
79
79
83
82
82
83
86

Pressure (mb)

1040
1040
1040
1039
1039
1039
1040
1040
1039
1039
1038
1038
1038
1037
1037
1037
1037
1037
1037
1037
1037
1036
1035
1035

Ozone (du)

289
287
285
285
284
285
285
284
284
284
284
284
283
283
282
283
283
283
282
283
286
287
288
289

Sunday 28

Waxing Gibbous 61%

12:09

02:30

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: 08:46, Set: 16:05, Transit: 12:26. Moon - Rise: 12:09, Set: 02:30. Civil Dark: 16:49 - 08:01. Nautical Dark: 17:36 - 07:14. Astro Dark: 18:20 - 06:31

Total Clouds (% Sky Obscured)

99
100
100
98
99
99
100
100
100
100
100
100
100
100
99
95
93
94
90
85
88
87
93
95

Low Clouds (% Sky Obscured)

83
74
68
70
69
70
61
35
23
31
47
57
52
49
62
66
51
47
48
54
64
75
86
78

Medium Clouds (% Sky Obscured)

3
0
0
1
2
1
1
6
1
0
19
45
55
55
55
50
55
59
52
27
20
10
0
0

High Clouds (% Sky Obscured)

93
100
100
92
92
89
98
93
95
98
100
100
100
99
91
80
67
78
60
55
57
50
60
71

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
4
3
3
2
2
2
1
1
0
0
0
0
1
0
1
1
1
1
2
2
3
3
3

Relative Humidity (%)

91
91
93
93
91
93
91
91
91
91
91
91
91
93
91
93
94
93
94
89
88
88
89
91

Pressure (mb)

1035
1035
1035
1034
1034
1034
1034
1034
1033
1033
1033
1033
1032
1032
1031
1032
1032
1032
1032
1032
1032
1032
1032
1031

Ozone (du)

291
291
293
295
294
292
292
292
289
288
287
285
284
280
279
279
277
276
275
274
272
272
274
275

Monday 29

Waxing Gibbous 72%

12:24

04:04

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: 08:46, Set: 16:06, Transit: 12:26. Moon - Rise: 12:24, Set: 04:04. Civil Dark: 16:50 - 08:01. Nautical Dark: 17:37 - 07:15. Astro Dark: 18:21 - 06:31

Total Clouds (% Sky Obscured)

96
90
95
93
84
84
91
82
80
87
90
93
88
84
80
75
71
76
79
84
79
75
68
66

Low Clouds (% Sky Obscured)

69
60
48
41
31
31
30
28
27
24
23
25
32
37
24
13
2
2
1
1
1
1
0
7

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

79
79
84
84
82
83
83
65
66
80
83
88
82
79
78
75
71
76
79
84
78
75
68
66

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 (%)

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

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

Chance of Frost

Temperature (°C)

4
3
3
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
3
4
4
3

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
85
86
91
89
89
89
91
93
91
91
91
93
93
93
91
91
89
89
86
83
83
88
93

Pressure (mb)

1032
1032
1033
1033
1034
1034
1034
1035
1035
1035
1035
1035
1035
1036
1036
1036
1036
1037
1037
1037
1037
1036
1036
1036

Ozone (du)

274
273
274
275
277
273
272
271
270
270
271
271
272
272
274
278
280
282
285
293
295
295
294
294

Tuesday 30

Waxing Gibbous 82%

12:46

05:43

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 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 OK

Sun - Rise: 08:45, Set: 16:07, Transit: 12:27. Moon - Rise: 12:46, Set: 05:43. Civil Dark: 16:51 - 08:01. Nautical Dark: 17:38 - 07:15. Astro Dark: 18:21 - 06:31

Total Clouds (% Sky Obscured)

68
63
64
61
59
59
61
62
48
48
36
35
42
47
43
37
42
44
47
50
48
45
41
40

Low Clouds (% Sky Obscured)

14
19
24
30
32
31
28
27
22
17
14
20
22
28
26
29
38
37
39
45
42
40
39
36

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
11
6
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

61
57
61
61
50
37
35
34
20
22
15
6
5
4
27
8
0
0
1
1
1
1
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
2
2
1
2
2
1
2
2
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)

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

Chance of Frost

Temperature (°C)

2
1
1
1
1
0
0
0
1
1
1
0
0
0
1
1
1
1
2
3
4
4
4
4

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
93
94
94
94
94
92
94
92
92
92
92
94
92
93
93
93
89
88
86
88
91
94

Pressure (mb)

1036
1036
1036
1036
1036
1036
1035
1035
1035
1035
1034
1034
1034
1034
1033
1033
1033
1033
1032
1032
1032
1031
1031
1030

Ozone (du)

296
299
301
303
305
304
303
303
301
301
302
302
304
304
305
306
307
309
309
309
309
308
307
306

Wednesday 31

Waxing Gibbous 91%

13:23

07:18

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

Sun - Rise: 08:45, Set: 16:08, Transit: 12:27. Moon - Rise: 13:23, Set: 07:18. Civil Dark: 16:52 - 08:01. Nautical Dark: 17:39 - 07:14. Astro Dark: 18:22 - 06:31

Total Clouds (% Sky Obscured)

39
39
34
29
23
24
26
27
46
64
83
83
89
95
86
73
60
70
84
100
73
46
23
41

Low Clouds (% Sky Obscured)

32
28
26
22
20
22
23
24
45
61
72
77
84
92
80
69
58
69
80
97
73
46
19
25

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
12
18
25
35
50
45
46
23
41

High Clouds (% Sky Obscured)

0
0
0
0
0
2
3
5
15
22
27
25
23
19
15
15
20
30
40
50
52
43
23
27

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 (%)

1
0
1
1
0
1
1
1
5
5
4
10
12
16
18
16
12
14
12
9
11
11
11
9

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

3
3
2
2
1
0
1
1
1
2
2
3
3
3
3
3
4
3
3
4
4
4
4
4

Relative Humidity (%)

94
93
94
93
93
91
91
91
91
93
94
96
94
93
89
89
91
91
88
86
85
85
85
85

Pressure (mb)

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

Ozone (du)

305
305
304
303
303
302
300
299
297
295
294
292
293
293
293
296
299
302
303
304
305
305
305
305

Thursday 1

Waxing Gibbous 97%

14:24

08:37

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

Sun - Rise: 08:45, Set: 16:09, Transit: 12:27. Moon - Rise: 14:24, Set: 08:37. Civil Dark: 16:53 - 08:01. Nautical Dark: 17:40 - 07:14. Astro Dark: 18:23 - 06:31

Total Clouds (% Sky Obscured)

45
52
69
87
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

30
32
41
51
58
48
40
37
52
68
85
82
78
75
71
69
67
73
80
86

Medium Clouds (% Sky Obscured)

45
40
39
38
37
50
58
65
66
71
77
87
93
100
100
100
100
100
99
98

High Clouds (% Sky Obscured)

18
9
39
69
100
100
100
100
100
100
100
100
100
100
100
100
100
68
37
5

ISS Passover

Visibility (miles)

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

Fog (%)

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
Light Rain
Very Light Rain

Precipitation Probability (%)

8
3
8
9
6
13
12
7
8
5
2
33
47
62
80
90
95
89
79
71

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.5
0.7
0.6
0.4
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
86
88
88
88
88
88
88
88
88
89
89
93
94
96
96
98
96
96
98

Pressure (mb)

1024
1025
1025
1025
1025
1025
1025
1024
1024
1024
1023
1023
1022
1022
1021
1020
1020
1019
1018
1017

Ozone (du)

296
287
278
274
270
266
265
264
263
262
262
262
259
257
255
257
259
262
261
260

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

Generated: 26/12/25 16:11:13. Forecast: 26/12/25 to 01/01/26. Timezone: UTC+0.00