Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 12%

No Rise

18:20

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
01 Bad
02 Bad

Sun - Rise: 06:50, Set: 19:16, Transit: 13:03. Moon - Rise: No Rise, Set: 18:20. Civil Dark: 19:49 - 06:17. Nautical Dark: 20:29 - 05:37. Astro Dark: 21:10 - 04:56

Total Clouds (% Sky Obscured)

100
100
100
92
92
98
95
99
94
93
97
81
78
79
77
100
99
75
74
80
80
73
76
76

Low Clouds (% Sky Obscured)

100
100
100
86
79
89
87
97
86
77
73
63
65
67
66
61
58
57
61
62
57
64
68
65

Medium Clouds (% Sky Obscured)

65
62
63
38
28
43
56
33
25
27
7
8
7
13
5
11
3
0
0
0
4
0
2
3

High Clouds (% Sky Obscured)

0
4
4
16
78
84
62
3
59
42
60
35
16
69
77
100
98
75
74
78
66
56
44
42

ISS Passover

Visibility (miles)

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

13
12
13
14
13
14
15
16
17
17
17
17
17
17
16
15
14
13
12
11
11
10
10
9

Chance of Frost

Temperature (°C)

17
17
17
16
16
17
17
18
19
19
19
19
20
19
19
18
17
17
16
16
16
16
15
15

Feels Like (°C)

15
15
15
14
15
14
14
15
15
15
17
16
17
17
16
15
15
15
14
15
14
14
14
14

Dew Point (°C)

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

Relative Humidity (%)

96
98
96
96
96
93
90
83
78
73
71
71
72
66
71
77
86
96
96
96
98
95
96
98

Pressure (mb)

1017
1017
1017
1017
1017
1017
1018
1018
1019
1019
1019
1019
1019
1019
1018
1019
1019
1019
1020
1020
1020
1020
1020
1019

Ozone (du)

265
264
264
264
264
263
263
263
263
262
262
262
263
261
260
259
257
257
256
256
257
257
258
259

Friday 19

Waning Crescent 6%

03:49

18:34

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
01 Bad
02 Bad

Sun - Rise: 06:52, Set: 19:13, Transit: 13:03. Moon - Rise: 03:49, Set: 18:34. Civil Dark: 19:47 - 06:18. Nautical Dark: 20:26 - 05:39. Astro Dark: 21:08 - 04:58

Total Clouds (% Sky Obscured)

79
77
81
72
76
77
65
65
59
65
98
100
100
100
100
69
100
100
100
72
75
96
96
46

Low Clouds (% Sky Obscured)

79
75
80
72
76
77
65
65
59
55
48
59
73
79
75
62
66
61
57
72
64
23
29
41

Medium Clouds (% Sky Obscured)

3
3
2
3
3
2
2
2
2
3
36
2
2
2
1
1
0
0
24
0
10
26
30
0

High Clouds (% Sky Obscured)

31
23
7
0
0
2
9
10
7
32
96
87
94
88
91
30
86
91
100
15
17
83
82
9

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
9
100

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
6
6
6
8
10
11
12
12
12
12
10
9
8
7
5
5
5
5
5
4
4

Chance of Frost

Temperature (°C)

15
15
15
15
15
15
16
18
18
19
20
20
20
19
19
18
16
15
15
14
14
14
14
14

Feels Like (°C)

14
14
14
15
15
15
16
16
17
17
18
18
19
18
18
18
17
16
16
13
13
13
13
13

Dew Point (°C)

15
15
15
15
15
15
14
14
13
12
12
12
11
10
11
12
13
13
13
12
12
12
12
12

Relative Humidity (%)

96
96
98
96
96
95
87
79
70
63
59
57
55
55
58
67
79
87
87
87
89
89
89
89

Pressure (mb)

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

Ozone (du)

260
260
260
260
261
262
261
260
261
260
259
259
260
262
263
263
264
264
265
264
265
267
268
267

Saturday 20

Waning Crescent 2%

05:07

18:46

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
01 Bad
02 Bad

Sun - Rise: 06:53, Set: 19:11, Transit: 13:02. Moon - Rise: 05:07, Set: 18:46. Civil Dark: 19:44 - 06:20. Nautical Dark: 20:24 - 05:41. Astro Dark: 21:05 - 04:59

Total Clouds (% Sky Obscured)

61
86
100
100
100
100
100
100
100
100
100
94
98
80
81
81
79
78
74
65
69
50
56
79

Low Clouds (% Sky Obscured)

49
64
53
54
50
46
59
66
73
48
63
72
68
52
80
79
76
75
73
65
68
50
56
68

Medium Clouds (% Sky Obscured)

0
0
0
0
25
29
27
7
23
52
45
38
14
8
60
19
55
4
13
1
0
0
7
14

High Clouds (% Sky Obscured)

29
64
100
100
100
100
100
100
100
100
100
94
97
15
15
20
20
20
13
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
7
9
9
9
9
9
9

Fog (%)

100
100
100
100
100
100
100
8
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
3
7
44
59
49
23
10
4
8
21
23
8
28
9
3
22
28

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

4
4
4
4
4
5
7
9
11
11
11
12
13
15
15
13
14
13
15
18
17
16
15
15

Chance of Frost

Temperature (°C)

14
13
14
13
13
14
15
16
17
18
18
18
18
18
18
17
16
15
14
14
13
13
12
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
89
90
89
86
82
78
73
65
58
54
53
57
66
73
77
79
76
83
92
87
92
90

Pressure (mb)

1013
1012
1012
1011
1011
1010
1010
1010
1010
1009
1009
1008
1007
1007
1006
1006
1005
1006
1006
1006
1006
1007
1006
1006

Ozone (du)

266
266
266
265
267
267
268
268
267
268
267
268
270
271
271
271
271
274
278
280
281
282
283
282

Sunday 21

New Moon 0%

06:21

18:56

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

Sun - Rise: 06:55, Set: 19:09, Transit: 13:02. Moon - Rise: 06:21, Set: 18:56. Civil Dark: 19:42 - 06:22. Nautical Dark: 20:21 - 05:42. Astro Dark: 21:02 - 05:01

Total Clouds (% Sky Obscured)

86
86
88
56
82
93
94
43
46
51
27
24
18
12
15
4
20
35
49
40
30
20
15
10

Low Clouds (% Sky Obscured)

72
69
71
56
68
71
69
43
46
51
27
24
18
12
13
3
19
35
49
40
30
20
15
10

Medium Clouds (% Sky Obscured)

21
22
22
24
30
36
42
38
30
22
12
6
0
0
0
0
2
5
7
5
2
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
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 (%)

17
17
19
3
2
3
1
4
4
1
1
1
0
0
0
0
1
2
0
1
2
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
16
16
14
13
13
12
12
13
13
13
13
13
13
11
9
6
5
4
7
5
5
5
5

Chance of Frost

Temperature (°C)

12
12
11
10
10
10
11
11
12
13
13
14
14
14
13
12
11
10
9
10
10
10
10
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
87
86
85
87
78
68
67
60
57
53
51
51
54
60
66
74
87
87
69
66
65
62
63

Pressure (mb)

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

Ozone (du)

282
283
284
285
289
292
295
296
298
300
300
300
301
303
305
307
308
305
305
307
309
309
309
311

Monday 22

Waxing Crescent 1%

07:34

19:06

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

Sun - Rise: 06:56, Set: 19:07, Transit: 13:01. Moon - Rise: 07:34, Set: 19:06. Civil Dark: 19:40 - 06:23. Nautical Dark: 20:19 - 05:44. Astro Dark: 21:00 - 05:03

Total Clouds (% Sky Obscured)

15
15
10
15
10
15
5
20
40
60
58
60
57
49
41
34
40
49
61
61
59
57
54
57

Low Clouds (% Sky Obscured)

15
10
5
10
5
5
5
20
38
59
58
56
53
41
30
22
32
41
51
53
53
54
52
55

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

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

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 (%)

5
18
13
10
8
7
4
4
11
17
22
21
18
21
19
7
11
9
2
3
3
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)

5
5
6
6
5
7
8
9
11
12
12
13
13
14
12
10
9
7
7
7
7
8
8
7

Chance of Frost

Temperature (°C)

9
9
8
8
8
9
9
11
13
14
15
15
14
14
13
12
11
11
10
10
9
9
9
9

Feels Like (°C)

7
6
6
5
6
6
6
7
10
11
12
12
12
12
12
12
11
6
6
6
6
5
6
4

Dew Point (°C)

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

Relative Humidity (%)

66
70
81
84
85
82
81
76
61
56
52
56
61
66
69
73
77
75
72
69
70
72
72
70

Pressure (mb)

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

Ozone (du)

311
311
312
314
316
315
314
314
313
313
312
313
314
314
314
315
315
315
315
315
313
312
311
311

Tuesday 23

Waxing Crescent 3%

08:47

19:17

03 Bad
04 Bad
05 Bad
06 Bad
07 OK
08 OK
09 Good
10 OK
11 OK
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

Sun - Rise: 06:58, Set: 19:04, Transit: 13:01. Moon - Rise: 08:47, Set: 19:17. Civil Dark: 19:37 - 06:25. Nautical Dark: 20:16 - 05:46. Astro Dark: 20:57 - 05:05

Total Clouds (% Sky Obscured)

57
56
58
51
43
38
17
24
37
51
59
63
72
82
93
99
97
96
96
97
96
96
91
89

Low Clouds (% Sky Obscured)

56
48
40
32
32
32
17
24
37
51
54
54
53
45
36
28
30
32
34
36
43
50
53
50

Medium Clouds (% Sky Obscured)

6
10
11
11
11
14
14
21
26
35
38
35
33
35
33
40
40
30
30
30
30
30
20
15

High Clouds (% Sky Obscured)

3
2
1
0
2
4
6
24
37
51
59
51
28
49
70
90
86
85
85
90
90
95
69
38

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
1
1
0
9
11
8
13
15
16
16
15
13
13
11
4
19
23
20
20
23

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

Chance of Frost

Temperature (°C)

8
8
7
6
5
7
8
10
11
12
12
13
13
13
12
12
12
11
10
10
9
9
8
7

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
70
75
81
86
75
65
56
55
55
55
54
53
52
52
52
51
54
56
58
66
73
84
85

Pressure (mb)

1022
1022
1022
1022
1023
1023
1023
1023
1023
1022
1022
1022
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022

Ozone (du)

311
311
311
311
311
311
312
312
312
311
311
311
311
311
310
310
309
308
307
306
305
304
303
303

Wednesday 24

Waxing Crescent 7%

09:59

19:29

Sun - Rise: 07:00, Set: 19:02, Transit: 13:01. Moon - Rise: 09:59, Set: 19:29. Civil Dark: 19:35 - 06:27. Nautical Dark: 20:14 - 05:48. Astro Dark: 20:55 - 05:07

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: 18/09/25 03:08:27. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+1.00