Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 15

Waning Crescent 19%

03:37

13:06

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 08:08, Set: 16:01, Transit: 12:05. Moon - Rise: 03:37, Set: 13:06. Civil Dark: 16:41 - 07:28. Nautical Dark: 17:24 - 06:45. Astro Dark: 18:04 - 06:05

Total Clouds (% Sky Obscured)

96
95
100
100
100
100
100
100
100
100
99
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

85
89
76
91
90
76
75
66
80
90
69
70
74
72
80
100
85
95
81
88
68
88
88
83

Medium Clouds (% Sky Obscured)

66
90
81
77
98
100
99
100
100
74
56
55
55
55
51
91
100
100
100
100
100
96
99
100

High Clouds (% Sky Obscured)

93
95
100
100
100
60
5
3
58
65
61
68
100
100
100
100
100
100
100
90
82
100
81
15

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0

Precipitation Type

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

Precipitation Probability (%)

15
16
46
50
57
74
69
48
25
32
36
43
60
81
90
95
95
95
86
77
56
66
70
60

Precipitation Amount (mm)

0
0
0
0
0
0.3
0.3
0
0
0
0
0
0
0.4
0.4
0.9
1.3
2.3
0.4
0.4
0
0.2
0.2
0

Wind Speed/Direction (mph)

18
18
18
17
17
17
16
16
17
16
17
17
16
15
14
16
16
16
13
13
11
9
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
87
83
81
87
85
90
90
87
88
88
86
90
90
87
87
87
88
88
91
93
91
93
91

Pressure (mb)

1007
1007
1006
1005
1005
1004
1004
1004
1004
1004
1004
1003
1003
1002
1002
1002
1001
1001
1002
1002
1003
1003
1003
1004

Ozone (du)

288
291
295
296
298
299
299
296
297
298
298
299
301
303
302
301
301
303
305
304
301
298
295
295

Tuesday 16

Waning Crescent 12%

04:49

13:22

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

Sun - Rise: 08:09, Set: 16:01, Transit: 12:05. Moon - Rise: 04:49, Set: 13:22. Civil Dark: 16:41 - 07:29. Nautical Dark: 17:24 - 06:46. Astro Dark: 18:05 - 06:05

Total Clouds (% Sky Obscured)

100
100
99
96
97
100
100
100
100
100
89
100
54
10
0
0
0
19
23
32
36
42
47
85

Low Clouds (% Sky Obscured)

67
50
54
39
0
0
0
0
0
0
0
0
0
0
0
0
0
19
23
32
36
40
34
0

Medium Clouds (% Sky Obscured)

100
100
99
79
97
100
100
100
100
100
89
100
54
10
0
0
0
1
2
1
0
0
0
0

High Clouds (% Sky Obscured)

13
15
27
29
10
5
11
15
15
10
10
20
20
4
0
0
0
0
0
0
0
3
15
68

ISS Passover

Visibility (miles)

5
7
9
8
7
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
24

Precipitation Type

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

Precipitation Probability (%)

59
50
36
44
36
13
6
4
5
11
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.2
0.2
0
0.3
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
8
4
5
10
7
8
8
7
8
8
7
6
4
4
4
4
4
3
2
2
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

7
7
6
6
7
6
5
4
4
3
4
4
4
4
4
3
2
2
1
1
0
-1
-1
-0

Relative Humidity (%)

91
93
91
91
96
96
94
88
91
85
82
82
79
81
82
86
88
88
88
88
89
88
88
88

Pressure (mb)

1004
1004
1005
1005
1006
1007
1008
1010
1011
1012
1013
1013
1014
1014
1015
1016
1016
1017
1018
1018
1019
1019
1019
1019

Ozone (du)

295
298
299
301
302
304
311
316
321
325
332
343
346
342
343
350
359
363
365
353
348
344
340
333

Wednesday 17

Waning Crescent 7%

06:02

13:44

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 08:09, Set: 16:02, Transit: 12:05. Moon - Rise: 06:02, Set: 13:44. Civil Dark: 16:41 - 07:30. Nautical Dark: 17:24 - 06:47. Astro Dark: 18:05 - 06:06

Total Clouds (% Sky Obscured)

100
77
96
92
100
100
100
100
100
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
3
20
2
20
34
32
42
54
70
78
87
81
92
77
77
95
97
100
100
100
95
100
96

Medium Clouds (% Sky Obscured)

15
28
38
26
24
33
33
100
88
81
96
73
40
53
84
73
88
47
49
71
47
95
100
98

High Clouds (% Sky Obscured)

87
48
90
65
100
100
100
100
100
67
100
100
71
15
15
15
20
47
68
100
100
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
8
9

Fog (%)

20
24
24
29
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
Light Rain
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
1
15
26
26
28
34
26
7
19
23
54
52
33
35
32
30
40
65
62

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
0.5
0.3

Wind Speed/Direction (mph)

3
4
4
4
5
5
6
8
9
10
12
15
16
17
17
17
17
19
19
19
19
19
18
19

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-0
1
1
2
3
3
3
3
4
5
5
6
6
6
6
7
7
7
8
7
7
7
8
8

Relative Humidity (%)

88
89
89
91
93
89
86
85
85
85
84
82
81
81
82
85
88
88
87
84
82
81
85
87

Pressure (mb)

1019
1020
1019
1019
1019
1019
1019
1019
1019
1019
1018
1017
1017
1016
1016
1015
1015
1015
1014
1014
1014
1013
1013
1013

Ozone (du)

328
326
325
324
320
317
313
310
308
306
303
299
299
299
299
298
296
296
298
301
304
304
303
302

Thursday 18

Waning Crescent 3%

07:13

14:13

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 OK
00 OK

Sun - Rise: 08:10, Set: 16:02, Transit: 12:06. Moon - Rise: 07:13, Set: 14:13. Civil Dark: 16:42 - 07:30. Nautical Dark: 17:25 - 06:47. Astro Dark: 18:05 - 06:06

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
78
56
34
32

Low Clouds (% Sky Obscured)

92
89
88
89
89
90
93
92
93
91
90
91
92
93
87
81
74
75
78
67
67
49
18
25

Medium Clouds (% Sky Obscured)

100
98
100
100
100
95
100
95
100
100
100
100
99
99
99
100
100
100
99
99
78
56
13
12

High Clouds (% Sky Obscured)

85
100
93
100
100
100
100
100
99
100
100
100
100
100
100
100
100
99
92
96
76
28
34
32

ISS Passover

Visibility (miles)

9
9
5
9
9
9
9
9
9
9
9
9
4
3
6
4
2
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
Light Rain
Light Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

73
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
76
48
46
42
45
27
11
7

Precipitation Amount (mm)

0.3
1.3
1.6
2
3
2.2
1.9
2.1
1.4
1.2
1
1
1.1
0.9
0.6
0.8
0.4
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

18
18
18
18
19
19
21
22
23
24
26
28
28
28
29
28
26
21
18
17
16
17
16
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
90
93
91
91
91
88
88
90
88
88
91
91
93
91
91
93
93
91
91
91
90
84
87

Pressure (mb)

1012
1011
1011
1010
1009
1008
1007
1006
1005
1004
1003
1002
1000
999
999
998
998
999
1000
1001
1002
1003
1004
1005

Ozone (du)

299
295
296
296
294
291
290
289
285
285
284
285
286
285
288
296
306
317
318
320
329
339
349
348

Friday 19

Waning Crescent 1%

08:17

14:55

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

Sun - Rise: 08:11, Set: 16:02, Transit: 12:06. Moon - Rise: 08:17, Set: 14:55. Civil Dark: 16:42 - 07:31. Nautical Dark: 17:25 - 06:48. Astro Dark: 18:06 - 06:07

Total Clouds (% Sky Obscured)

31
35
43
37
41
45
45
53
52
48
43
44
37
40
38
36
34
50
64
73
66
64
62
71

Low Clouds (% Sky Obscured)

31
34
39
37
41
45
45
53
52
46
43
43
37
40
38
36
34
45
50
56
50
48
45
45

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
2
2
2
2
2
1
1
0
0
0
0
2
5
10
19

High Clouds (% Sky Obscured)

31
2
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
10
28
58
60
44
24
21

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 (%)

13
0
1
1
0
1
1
0
0
2
2
6
6
3
11
8
2
6
5
0
1
1
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)

16
18
15
13
11
10
10
10
10
10
11
13
12
11
10
10
9
8
10
11
12
12
12
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

1
-1
1
1
3
4
4
4
3
5
6
5
5
6
6
6
6
6
3
4
5
5
5
4

Dew Point (°C)

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

Relative Humidity (%)

90
86
83
82
82
85
86
88
88
85
81
78
79
82
84
87
90
91
91
91
91
90
90
88

Pressure (mb)

1006
1007
1009
1009
1010
1011
1012
1013
1014
1015
1016
1016
1016
1016
1016
1017
1017
1017
1017
1017
1016
1016
1015
1014

Ozone (du)

350
358
369
369
372
373
373
377
377
373
366
358
349
339
330
322
315
307
305
303
301
297
294
290

Saturday 20

New Moon 0%

09:11

15:49

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 08:11, Set: 16:03, Transit: 12:07. Moon - Rise: 09:11, Set: 15:49. Civil Dark: 16:43 - 07:31. Nautical Dark: 17:26 - 06:48. Astro Dark: 18:06 - 06:08

Total Clouds (% Sky Obscured)

73
79
86
90
91
93
96
100
100
100
100
100
100
100
95
86
77
74
74
71
76
82
88
90

Low Clouds (% Sky Obscured)

40
38
46
54
62
63
63
58
58
58
58
56
53
52
57
64
71
73
74
71
75
77
79
83

Medium Clouds (% Sky Obscured)

29
37
36
31
26
26
30
30
56
78
100
100
100
100
87
77
60
57
63
59
58
58
57
62

High Clouds (% Sky Obscured)

19
16
43
70
91
93
96
100
100
100
100
100
100
100
70
40
10
15
15
15
9
9
4
7

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
8
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
Very Light Rain
Very Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
None
None
None
None

Precipitation Probability (%)

1
1
18
37
57
71
77
74
53
46
44
33
23
11
18
20
22
34
45
55
52
48
40
47

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

13
14
15
15
16
16
14
13
12
13
14
14
14
14
14
13
11
11
12
13
13
11
10
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
4
4
5
5
5
5
5
5
5
5
5
5
5
5
4
4
4
4
4
5
5
5
5

Relative Humidity (%)

90
90
90
90
90
87
87
88
88
87
85
85
84
85
84
84
84
85
86
90
91
94
94
96

Pressure (mb)

1013
1013
1012
1011
1010
1009
1009
1008
1008
1007
1007
1006
1005
1004
1004
1003
1003
1003
1002
1002
1002
1002
1001
1001

Ozone (du)

289
288
287
287
287
287
291
295
299
304
308
313
316
319
323
323
323
323
325
327
329
330
332
333

Sunday 21

Waxing Crescent 2%

09:52

16:56

Sun - Rise: 08:12, Set: 16:03, Transit: 12:07. Moon - Rise: 09:52, Set: 16:56. Civil Dark: 16:43 - 07:32. Nautical Dark: 17:26 - 06:49. Astro Dark: 18:07 - 06:08

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

Generated: 15/12/25 01:13:02. Forecast: 15/12/25 to 21/12/25. Timezone: UTC+0.00