Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 8

Waning Gibbous 77%

20:10

11:48

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 07:54, Set: 16:10, Transit: 12:02. Moon - Rise: 20:10, Set: 11:48. Civil Dark: 16:48 - 07:17. Nautical Dark: 17:29 - 06:36. Astro Dark: 18:07 - 05:57

Total Clouds (% Sky Obscured)

90
92
94
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

68
49
86
96
84
78
82
87
84
78
90
77
78
73
80
84
63
69
71
84
73
83
78
88

Medium Clouds (% Sky Obscured)

90
92
94
100
100
84
100
79
51
64
88
100
100
100
100
100
97
95
98
97
93
63
94
93

High Clouds (% Sky Obscured)

90
92
94
100
94
95
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

95
95
95
89
76
68
62
49
49
31
26
68
70
71
95
91
58
44
40
25
37
36
79
73

Precipitation Amount (mm)

1.1
1.6
1.4
0.8
0.4
0.3
0.3
0
0.3
0
0
0.5
0.4
0.3
0.8
0.8
0.2
0
0
0
0
0
0.6
0.3

Wind Speed/Direction (mph)

16
15
16
21
23
24
24
22
23
25
27
27
27
28
29
30
31
31
31
31
33
33
34
34

Chance of Frost

Temperature (°C)

13
13
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14

Feels Like (°C)

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

Dew Point (°C)

12
13
13
12
12
12
13
13
12
12
12
12
12
12
11
11
11
11
11
12
12
11
11
12

Relative Humidity (%)

93
95
95
92
90
86
90
92
86
86
87
87
87
87
83
86
83
80
84
86
84
83
82
87

Pressure (mb)

1010
1010
1010
1010
1010
1010
1010
1011
1010
1010
1009
1009
1008
1008
1007
1006
1005
1005
1004
1004
1004
1004
1004
1004

Ozone (du)

337
334
334
332
328
327
328
326
324
318
307
300
297
295
292
292
290
290
289
288
286
286
286
285

Tuesday 9

Waning Gibbous 67%

21:33

12:05

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 07:55, Set: 16:10, Transit: 12:03. Moon - Rise: 21:33, Set: 12:05. Civil Dark: 16:48 - 07:18. Nautical Dark: 17:29 - 06:37. Astro Dark: 18:07 - 05:58

Total Clouds (% Sky Obscured)

100
97
100
99
98
100
100
97
100
95
100
100
100
100
100
100
100
100
58
56
58
63
69
49

Low Clouds (% Sky Obscured)

100
79
63
68
69
54
26
36
46
39
44
50
69
64
59
49
55
48
44
56
58
61
68
49

Medium Clouds (% Sky Obscured)

100
91
100
97
80
100
100
96
96
70
75
85
100
96
76
83
15
31
35
1
0
1
0
2

High Clouds (% Sky Obscured)

90
2
20
96
72
16
78
19
32
62
95
100
100
100
100
100
100
100
57
55
56
53
48
35

ISS Passover

Visibility (miles)

4
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

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

Precipitation Probability (%)

89
54
36
42
25
3
0
0
0
0
2
10
12
14
17
9
26
22
10
13
15
10
9
2

Precipitation Amount (mm)

0.6
0.2
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)

34
31
28
25
23
18
18
17
16
16
15
16
16
16
16
17
16
16
17
17
17
17
17
16

Chance of Frost

Temperature (°C)

14
14
14
14
14
14
14
14
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
92
89
87
89
84
86
87
89
89
87
89
89
87
87
89
89
89
89
90
89
86
86
84

Pressure (mb)

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

Ozone (du)

283
283
283
283
284
285
286
289
290
290
289
289
289
289
291
292
292
293
295
297
299
299
301
299

Wednesday 10

Waning Gibbous 57%

22:50

12:19

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

Sun - Rise: 07:56, Set: 16:10, Transit: 12:03. Moon - Rise: 22:50, Set: 12:19. Civil Dark: 16:48 - 07:19. Nautical Dark: 17:29 - 06:38. Astro Dark: 18:07 - 05:59

Total Clouds (% Sky Obscured)

37
43
53
60
55
53
57
46
47
45
44
64
32
20
27
40
51
52
67
69
70
71
72
69

Low Clouds (% Sky Obscured)

37
43
53
60
55
53
57
46
47
45
44
64
32
20
27
40
51
52
61
62
60
59
58
52

Medium Clouds (% Sky Obscured)

1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
60
60
50
50
45

High Clouds (% Sky Obscured)

37
35
35
24
0
0
0
0
0
0
0
0
0
0
0
0
0
2
45
40
35
35
35
40

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
67
67
67
67
67
67
67

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
1
0
1
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
6
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)

15
14
12
12
10
9
8
7
4
5
8
5
7
8
8
10
12
13
14
15
16
17
17
17

Chance of Frost

Temperature (°C)

13
13
13
13
13
12
12
12
12
12
12
12
12
12
12
12
12
11
11
11
11
11
11
11

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
86
86
83
80
79
79
77
77
77
80
79
80
80
83
86
87
86
86
84
84
87
88
88

Pressure (mb)

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

Ozone (du)

297
298
300
305
304
303
306
309
308
309
312
313
314
315
317
315
316
313
312
312
314
316
316
315

Thursday 11

Third Quarter 46%

00:03

12:32

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 07:57, Set: 16:10, Transit: 12:04. Moon - Rise: 00:03, Set: 12:32. Civil Dark: 16:48 - 07:20. Nautical Dark: 17:29 - 06:39. Astro Dark: 18:07 - 06:00

Total Clouds (% Sky Obscured)

65
64
78
89
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

46
40
51
64
74
78
83
80
87
90
92
83
73
65
70
67
68
80
78
76
70
61
57
46

Medium Clouds (% Sky Obscured)

40
40
38
24
37
41
43
42
45
42
43
43
95
60
83
63
96
97
97
98
98
77
100
68

High Clouds (% Sky Obscured)

14
0
47
79
100
100
100
100
100
100
100
81
65
44
65
81
100
100
80
100
88
76
45
71

ISS Passover

Visibility (miles)

9
9
9
9
9
9
8
9
9
9
9
9
9
9
9
9
9
9
9
9
8
9
9
9

Fog (%)

67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67

Precipitation Type

None
None
None
None
None
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

Precipitation Probability (%)

9
7
4
7
14
8
10
3
8
8
4
3
3
3
7
12
26
47
60
73
74
80
84
75

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

16
16
16
17
18
20
20
19
19
19
18
18
18
18
18
18
19
18
18
18
18
13
14
17

Chance of Frost

Temperature (°C)

11
11
11
11
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
11

Feels Like (°C)

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

Dew Point (°C)

9
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
9
10
10
10
9
9

Relative Humidity (%)

87
88
88
88
87
88
90
90
90
90
89
89
89
87
87
87
87
84
83
84
86
86
86
83

Pressure (mb)

1016
1016
1015
1014
1014
1013
1013
1013
1012
1012
1011
1011
1010
1010
1010
1009
1009
1009
1009
1009
1010
1010
1010
1010

Ozone (du)

317
311
305
301
301
302
302
305
306
307
309
311
311
312
314
314
315
317
322
321
322
322
323
321

Friday 12

Waning Crescent 36%

01:13

12:44

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 07:58, Set: 16:10, Transit: 12:04. Moon - Rise: 01:13, Set: 12:44. Civil Dark: 16:48 - 07:20. Nautical Dark: 17:29 - 06:39. Astro Dark: 18:08 - 06:00

Total Clouds (% Sky Obscured)

98
97
90
85
76
83
91
98
86
76
65
73
81
83
87
84
75
73
72
68
66
63
57
69

Low Clouds (% Sky Obscured)

35
28
33
42
44
45
52
50
48
36
33
37
39
45
43
48
50
53
48
48
48
45
43
51

Medium Clouds (% Sky Obscured)

94
91
81
73
64
59
54
39
40
41
46
48
57
62
62
64
60
60
60
55
48
45
49
61

High Clouds (% Sky Obscured)

73
77
63
46
30
48
61
92
66
28
1
2
4
5
6
4
3
1
1
0
0
0
0
18

ISS Passover

Visibility (miles)

9
5
9
5
3
5
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67

Precipitation Type

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

Precipitation Probability (%)

60
60
51
70
70
51
39
31
20
11
9
25
31
31
33
31
31
28
26
19
30
34
32
31

Precipitation Amount (mm)

0.2
0.2
0
0.3
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

16
17
14
13
10
14
14
12
12
14
14
14
14
14
14
14
15
15
16
16
17
17
18
19

Chance of Frost

Temperature (°C)

11
11
11
12
12
12
12
12
12
12
12
12
12
12
11
11
11
11
11
11
11
11
11
11

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
92
90
90
92
90
81
79
79
71
71
72
71
71
71
70
67
65
67
70
73
73
75
76

Pressure (mb)

1011
1011
1012
1012
1013
1014
1014
1015
1016
1016
1017
1017
1017
1018
1018
1019
1019
1019
1020
1020
1021
1021
1021
1021

Ozone (du)

320
319
319
317
318
318
320
318
319
320
321
318
317
316
316
318
321
323
333
342
352
363
375
386

Saturday 13

Waning Crescent 27%

02:22

12:58

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 07:59, Set: 16:10, Transit: 12:05. Moon - Rise: 02:22, Set: 12:58. Civil Dark: 16:48 - 07:21. Nautical Dark: 17:29 - 06:40. Astro Dark: 18:08 - 06:01

Total Clouds (% Sky Obscured)

82
90
85
82
76
81
85
85
86
88
89
92
96
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

60
68
66
65
63
59
52
45
48
54
60
52
42
42
46
53
60
57
53
50
50
46
44
42

Medium Clouds (% Sky Obscured)

73
85
76
62
50
51
53
58
60
58
56
44
33
24
21
22
27
21
12
6
7
7
7
16

High Clouds (% Sky Obscured)

34
50
36
22
9
13
15
17
21
29
37
57
79
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

8
7
5
7
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67

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 (%)

29
32
34
31
28
24
18
2
1
2
0
7
12
16
13
9
1
5
3
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)

19
20
21
21
21
20
20
20
19
20
20
21
21
21
22
22
22
23
24
24
25
26
27
28

Chance of Frost

Temperature (°C)

11
11
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
11
12
12
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
72
71
72
73
75
77
79
80
81
83
86
86
86
86
87
86
86
86
84
84
83
83
83

Pressure (mb)

1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022
1021
1021
1020
1020
1020
1019
1019
1019
1018
1018
1017

Ozone (du)

375
363
351
348
346
343
341
339
338
334
330
326
325
323
322
320
318
317
314
311
309
309
309
309

Sunday 14

Waning Crescent 19%

03:32

12:58

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

Sun - Rise: 08:00, Set: 16:10, Transit: 12:05. Moon - Rise: 03:32, Set: 12:58. Civil Dark: 16:48 - 07:22. Nautical Dark: 17:29 - 06:41. Astro Dark: 18:08 - 06:02

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
94
89
85

Low Clouds (% Sky Obscured)

41
41
52
63
76
83
89
96
94
90
86
80
73
67
57
48
38

Medium Clouds (% Sky Obscured)

25
34
55
76
97
98
98
98
99
99
100
88
80
70
75
70
80

High Clouds (% Sky Obscured)

100
100
97
95
94
95
96
96
98
99
100
100
100
100
89
81
77

ISS Passover

Visibility (miles)

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

Fog (%)

67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67

Precipitation Type

None
None
None
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None

Precipitation Probability (%)

2
3
15
26
32
51
81
95
95
95
95
95
82
30
24
31
30

Precipitation Amount (mm)

0
0
0
0
0
0
0.4
0.9
0.9
1.2
1.4
1.1
0.5
0
0
0
0

Wind Speed/Direction (mph)

27
27
27
26
25
25
25
25
25
19
17
20
18
17
16
15
14

Chance of Frost

Temperature (°C)

12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
83
83
83
83
84
86
89
92
90
87
86
84
81
80
79
77

Pressure (mb)

1017
1016
1015
1015
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014

Ozone (du)

307
305
304
303
303
303
303
303
303
305
307
309
311
313
315
318
321

Forecast for Salerie, Guernsey (49.46,-2.53)

Generated: 08/12/25 13:29:15. Forecast: 08/12/25 to 14/12/25. Timezone: UTC+0.00