Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 22

Waxing Crescent 12%

10:43

18:10

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
16 Bad
17 Bad

Sun - Rise: 08:13, Set: 16:04, Transit: 12:08. Moon - Rise: 10:43, Set: 18:10. Civil Dark: 16:44 - 07:33. Nautical Dark: 17:27 - 06:50. Astro Dark: 18:07 - 06:09

Total Clouds (% Sky Obscured)

62
72
74
100
100
100
100
100
100
100
99
100
100
100
100
100
100
100
99
100
100
97
100
100

Low Clouds (% Sky Obscured)

62
72
73
81
75
77
73
79
72
71
78
100
100
100
100
100
100
100
96
100
100
91
100
100

Medium Clouds (% Sky Obscured)

62
46
54
79
90
95
98
97
87
92
65
47
43
50
43
28
30
45
45
24
19
23
45
51

High Clouds (% Sky Obscured)

62
72
74
100
74
75
63
86
100
92
79
93
100
100
93
74
82
87
94
69
61
60
27
2

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
43
48
64
84
100
94
2
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
4
11
11
11
10
13
12
7
3
2
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
6
6
7
7
8
8
9
9
7
7
8
10
10
11
11
14
14
14
14
15
16
16
16

Chance of Frost

Temperature (°C)

8
8
8
8
8
8
8
8
8
8
8
7
7
6
6
6
6
6
6
6
6
6
6
6

Feels Like (°C)

5
5
5
5
5
5
5
5
5
6
5
4
4
4
2
2
2
2
2
2
1
0
0
-0

Dew Point (°C)

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

Relative Humidity (%)

91
91
91
91
91
91
91
91
95
96
94
94
94
94
94
93
93
91
90
90
88
88
86
85

Pressure (mb)

1009
1009
1010
1010
1011
1011
1011
1011
1012
1012
1012
1013
1013
1014
1015
1016
1017
1018
1018
1018
1019
1019
1020
1021

Ozone (du)

386
385
381
374
366
361
359
357
358
356
355
354
351
350
348
351
353
355
355
355
356
356
355
351

Tuesday 23

Waxing Crescent 19%

11:00

19:27

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
16 Bad
17 Bad

Sun - Rise: 08:13, Set: 16:05, Transit: 12:09. Moon - Rise: 11:00, Set: 19:27. Civil Dark: 16:45 - 07:33. Nautical Dark: 17:28 - 06:50. Astro Dark: 18:08 - 06:09

Total Clouds (% Sky Obscured)

92
91
97
92
90
98
100
94
84
92
91
83
82
72
84
65
69
56
78
85
75
75
71
48

Low Clouds (% Sky Obscured)

85
90
94
92
90
98
100
89
84
92
91
83
82
72
81
65
69
56
78
85
75
75
71
48

Medium Clouds (% Sky Obscured)

9
3
9
3
0
0
0
16
0
0
0
0
0
0
0
0
10
20
0
0
0
0
0
0

High Clouds (% Sky Obscured)

1
1
0
1
0
1
0
0
1
12
10
10
15
10
17
13
8
15
15
4
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
1
5
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)

16
16
16
16
17
16
16
16
17
17
17
16
16
16
16
17
18
18
19
18
18
18
16
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
80
79
91
85
83
83
80
82
82
80
79
77
79
88
88
85
80
75
73
75
75
77
80

Pressure (mb)

1022
1022
1023
1024
1025
1025
1026
1027
1027
1028
1028
1029
1029
1030
1031
1032
1033
1033
1033
1033
1033
1033
1033
1034

Ozone (du)

349
348
344
344
341
336
332
329
326
324
325
327
327
327
326
326
326
326
327
329
330
326
324
325

Wednesday 24

Waxing Crescent 28%

11:14

20:45

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

Sun - Rise: 08:13, Set: 16:06, Transit: 12:09. Moon - Rise: 11:14, Set: 20:45. Civil Dark: 16:46 - 07:33. Nautical Dark: 17:29 - 06:50. Astro Dark: 18:09 - 06:10

Total Clouds (% Sky Obscured)

39
55
62
23
11
42
8
17
22
25
28
28
20
1
1
2
0
0
8
16
26
18
9
0

Low Clouds (% Sky Obscured)

39
50
56
22
11
42
8
17
22
25
28
28
19
1
1
1
0
0
8
16
26
18
9
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
0
1
0

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
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)

17
16
16
17
18
18
18
19
19
20
21
21
21
22
22
21
22
21
22
21
21
20
19
17

Chance of Frost

Temperature (°C)

3
2
2
2
2
2
2
2
2
2
1
1
1
1
1
1
2
3
3
3
3
3
2
2

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
83
83
83
82
81
83
83
83
83
83
81
81
80
77
73
66
62
61
60
62
63
64
65

Pressure (mb)

1034
1034
1034
1034
1033
1033
1033
1032
1032
1031
1031
1030
1030
1030
1030
1030
1029
1029
1028
1028
1028
1028
1028
1028

Ozone (du)

325
328
330
332
332
334
336
337
338
341
346
354
351
350
353
355
355
355
354
353
353
353
353
353

Thursday 25

Waxing Crescent 39%

11:26

22:03

18 Good
19 OK
20 OK
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 OK
13 OK
14 Good
15 Good
16 Good
17 Good

Sun - Rise: 08:13, Set: 16:06, Transit: 12:10. Moon - Rise: 11:26, Set: 22:03. Civil Dark: 16:46 - 07:34. Nautical Dark: 17:29 - 06:51. Astro Dark: 18:09 - 06:10

Total Clouds (% Sky Obscured)

7
14
19
28
32
39
34
36
32
25
25
25
27
36
36
35
37
44
33
18
0
0
0
1

Low Clouds (% Sky Obscured)

7
14
19
28
32
39
34
36
32
25
25
25
27
36
36
35
37
44
31
15
0
0
0
1

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
2
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
0
0
0
0
0
0
0
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)

16
15
14
13
13
13
12
12
12
12
12
12
12
12
12
13
14
15
15
16
16
17
16
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-3
-2
-2
-2
-2
-2
-3

Dew Point (°C)

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

Relative Humidity (%)

66
67
70
71
74
75
75
78
80
78
78
78
78
78
78
77
71
70
68
67
68
72
77
85

Pressure (mb)

1029
1029
1030
1030
1030
1030
1030
1031
1031
1031
1031
1031
1031
1031
1032
1032
1032
1032
1032
1032
1032
1032
1032
1032

Ozone (du)

354
353
353
353
353
354
356
359
358
355
351
348
347
347
346
346
346
343
340
338
337
335
331
329

Friday 26

Waxing Crescent 50%

11:37

23:22

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

Sun - Rise: 08:14, Set: 16:07, Transit: 12:10. Moon - Rise: 11:37, Set: 23:22. Civil Dark: 16:47 - 07:34. Nautical Dark: 17:30 - 06:51. Astro Dark: 18:10 - 06:10

Total Clouds (% Sky Obscured)

7
10
22
33
40
54
53
56
51
54
58
65
58
56
60
42
24
10
11
12
13
26
44
58

Low Clouds (% Sky Obscured)

3
5
7
19
34
49
50
51
51
54
56
65
58
56
60
42
24
10
11
12
13
26
44
58

Medium Clouds (% Sky Obscured)

0
0
0
0
0
8
4
3
2
40
45
45
58
56
60
42
24
10
11
12
13
26
14
2

High Clouds (% Sky Obscured)

7
10
22
25
25
25
12
2
2
1
2
1
2
0
0
0
0
0
0
0
1
7
16
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
1
3
4
3
4
3
1
4
4
1
3
3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
89
91
91
93
94
93
85
82
80
86
93
88
88
88
86
85
85
85
83
80
76
82
88

Pressure (mb)

1033
1033
1033
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
1035
1035
1035
1035
1035
1035
1035
1035
1035
1036

Ozone (du)

326
325
324
325
326
324
323
322
322
321
320
320
319
318
317
316
315
315
314
313
311
309
309
308

Saturday 27

First Quarter 50%

11:50

00:42

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
16 Bad
17 Bad

Sun - Rise: 08:14, Set: 16:08, Transit: 12:11. Moon - Rise: 11:50, Set: 00:42. Civil Dark: 16:48 - 07:34. Nautical Dark: 17:31 - 06:51. Astro Dark: 18:11 - 06:11

Total Clouds (% Sky Obscured)

64
71
77
79
81
84
86
91
97
86
75
67
78
89
100
100
100
100
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

64
68
69
73
76
80
85
90
96
86
75
67
78
89
100
100
100
100
100
100
100
100
100
99

Medium Clouds (% Sky Obscured)

2
1
0
0
0
0
0
0
0
2
5
10
10
7
7
5
2
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

6
3
1
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
0
1
2
0
3
5
3
5
5
0
1
2
2
1
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
13
12
12
13
13
14
13
13
13
14
15
16
15
15
14
15
15
16
14
13
13
12
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

1
-2
-2
-1
-2
-2
-2
-1
-1
-2
-2
-2
-2
-1
-1
-2
-2
-2
-2
-1
-1
-1
-1
-1

Dew Point (°C)

2
2
2
2
2
2
2
2
1
1
2
1
1
1
1
1
1
1
1
1
1
2
2
1

Relative Humidity (%)

91
93
93
94
91
88
85
85
83
83
83
82
80
79
75
72
71
71
70
71
74
74
75
75

Pressure (mb)

1036
1036
1036
1036
1036
1036
1036
1036
1035
1035
1035
1035
1035
1035
1035
1035
1035
1035
1035
1035
1035
1035
1035
1035

Ozone (du)

307
307
307
307
308
309
309
307
306
304
303
303
302
302
303
303
303
303
304
303
303
302
303
303

Sunday 28

Waxing Gibbous 61%

12:05

02:06

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

Sun - Rise: 08:14, Set: 16:09, Transit: 12:11. Moon - Rise: 12:05, Set: 02:06. Civil Dark: 16:49 - 07:34. Nautical Dark: 17:32 - 06:51. Astro Dark: 18:11 - 06:11

Total Clouds (% Sky Obscured)

78
58
38
33
42
57
59
70
71
70
69
43
31
24
18
17
19
22

Low Clouds (% Sky Obscured)

78
58
38
33
42
57
59
70
66
69
65
43
31
24
18
17
19
22

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
6
14
18
14
8
0

High Clouds (% Sky Obscured)

6
13
19
27
38
50
45
38
31
40
48
43
31
24
18
17
18
16

ISS Passover

Visibility (miles)

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

Precipitation Type

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
1
0
0
1
0
0
0
0
0
1
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
80
86
91
93
93
96
96
96
96
96
96
96
96
96
98
91
88

Pressure (mb)

1035
1036
1036
1036
1036
1036
1036
1036
1036
1036
1036
1036
1036
1037
1037
1037
1037
1037

Ozone (du)

304
304
304
305
305
305
305
304
302
300
301
302
302
302
302
302
301
300

Forecast for Twerton, Bath and North East Somerset, United Kingdom (51.36,-2.38)

Generated: 22/12/25 17:39:36. Forecast: 22/12/25 to 28/12/25. Timezone: UTC+0.00