Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 13

Waning Gibbous 52%

21:50

14:44

13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 OK
19 OK
20 Good
21 Good
22 Good
23 Good
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: 06:49, Set: 19:31, Transit: 13:09. Moon - Rise: 21:50, Set: 14:44. Civil Dark: 20:04 - 06:16. Nautical Dark: 20:44 - 05:36. Astro Dark: 21:26 - 04:55

Total Clouds (% Sky Obscured)

37
36
25
26
27
18
16
0
0
0
0
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

25
25
14
22
22
16
16
0
0
0
0
0
5
26
31
37
30
35
12
51
53
67
89
100

Medium Clouds (% Sky Obscured)

29
0
0
0
0
0
0
0
0
0
0
0
0
0
6
39
68
100
100
100
100
100
100
86

High Clouds (% Sky Obscured)

0
0
0
0
0
4
0
0
0
0
0
100
100
99
100
100
96
100
100
100
100
100
100
43

ISS Passover

Visibility (miles)

7
6
6
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
6
0

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
6
19
36
48
30
4
0
0

Precipitation Type

None
None
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
None

Precipitation Probability (%)

48
43
38
26
30
12
9
5
4
2
2
0
0
0
0
1
1
2
1
20
73
95
95
85

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
1.5
2.4
0

Wind Speed/Direction (mph)

14
16
16
16
15
13
10
7
6
5
4
3
3
3
3
3
3
3
4
5
9
12
16
19

Chance of Frost

Temperature (°C)

17
17
17
17
16
16
14
13
12
11
11
10
9
9
8
8
9
9
10
11
14
15
15
15

Feels Like (°C)

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

Dew Point (°C)

9
9
9
10
10
11
11
11
10
10
9
8
7
6
6
6
7
8
8
10
12
14
14
15

Relative Humidity (%)

59
60
60
62
65
72
79
87
90
90
90
88
87
85
87
87
88
90
90
92
87
93
95
98

Pressure (mb)

1009
1009
1010
1010
1010
1010
1011
1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1012
1012
1011
1011
1010
1008
1007

Ozone (du)

316
313
312
312
312
311
310
310
307
302
294
289
285
281
278
276
274
270
266
262
259
259
261
262

Sunday 14

Third Quarter 41%

22:44

15:59

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

Sun - Rise: 06:50, Set: 19:29, Transit: 13:09. Moon - Rise: 22:44, Set: 15:59. Civil Dark: 20:02 - 06:17. Nautical Dark: 20:41 - 05:38. Astro Dark: 21:23 - 04:57

Total Clouds (% Sky Obscured)

99
96
99
100
98
71
66
36
51
49
53
65
68
19
24
31
28
34
34
41
32
42
49
33

Low Clouds (% Sky Obscured)

97
92
76
90
95
55
62
36
44
48
45
48
47
19
24
31
28
34
34
41
32
42
39
33

Medium Clouds (% Sky Obscured)

39
51
60
70
68
42
0
4
23
0
0
0
1
0
0
0
0
0
0
0
0
0
26
17

High Clouds (% Sky Obscured)

77
45
79
38
62
1
0
0
0
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
0
9
5
9
7
3
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
9
0
9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

60
38
95
60
53
76
51
12
7
10
10
21
12
10
9
8
6
8
9
13
17
30
23
34

Precipitation Amount (mm)

0
0
0.5
0
0
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

19
15
19
20
21
20
21
19
17
18
19
20
21
22
22
22
21
20
19
20
21
23
25
26

Chance of Frost

Temperature (°C)

16
17
18
18
18
18
18
16
15
15
14
15
15
15
14
14
14
14
14
14
15
16
16
17

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
96
95
95
93
92
92
85
85
84
84
82
82
74
78
78
78
78
79
78
73
69
67
65

Pressure (mb)

1006
1005
1004
1003
1003
1003
1002
1003
1003
1003
1004
1004
1004
1005
1005
1006
1006
1007
1007
1008
1008
1008
1009
1009

Ozone (du)

262
262
262
261
262
261
264
267
269
272
275
278
279
279
281
284
285
284
285
287
288
292
298
303

Monday 15

Waning Crescent 30%

23:53

16:56

13 Bad
14 Bad
15 OK
16 OK
17 OK
18 OK
19 Bad
20 OK
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: 06:52, Set: 19:27, Transit: 13:09. Moon - Rise: 23:53, Set: 16:56. Civil Dark: 20:00 - 06:19. Nautical Dark: 20:39 - 05:40. Astro Dark: 21:21 - 04:58

Total Clouds (% Sky Obscured)

28
27
19
30
24
27
41
35
47
47
41
47
65
75
73
70
60
95
97
100
100
100
100
100

Low Clouds (% Sky Obscured)

28
27
19
30
24
27
41
35
44
47
41
45
40
46
38
38
34
36
35
36
38
40
48
22

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
2
34
16
5
1
2
7
15
21
30
37
45

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
0
0
3
20
30
30
42
27
94
97
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
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 (%)

27
29
16
10
8
6
5
6
6
5
6
5
3
4
5
4
6
6
9
14
22
15
22
18

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)

26
26
25
24
23
22
20
19
18
17
17
15
14
14
13
12
11
9
7
8
11
13
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
10
11
11
11
11
11
11
11
10
10
10
10
10
9
9
9
10
10
10
10
10
10
10

Relative Humidity (%)

63
64
64
67
68
72
76
79
79
79
79
80
78
79
77
77
80
83
90
86
76
70
65
63

Pressure (mb)

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

Ozone (du)

310
306
305
301
301
304
309
306
304
302
302
299
299
300
302
303
301
295
292
290
286
283
280
278

Tuesday 16

Waning Crescent 20%

01:13

17:36

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: 06:53, Set: 19:25, Transit: 13:08. Moon - Rise: 01:13, Set: 17:36. Civil Dark: 19:57 - 06:21. Nautical Dark: 20:37 - 05:41. Astro Dark: 21:18 - 05:00

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
98
97

Low Clouds (% Sky Obscured)

25
38
28
34
45
47
53
56
65
73
79
88
92
96
100
93
87
81
77
71
38
60
55
60

Medium Clouds (% Sky Obscured)

70
82
78
80
90
97
99
100
100
100
100
100
96
92
88
86
87
85
86
87
82
87
88
49

High Clouds (% Sky Obscured)

100
100
100
100
100
86
94
100
100
100
100
100
100
100
100
100
99
100
72
100
100
93
52
77

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
8
9
9
7
5
3
2
1
2
3
9
3
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
Very Light Rain
Very 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 (%)

11
22
6
15
24
18
52
72
79
91
95
95
95
95
95
95
88
25
21
18
10
14
6
3

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.3
0.3
0.4
0.7
1
1.2
2
1.4
1.1
0.5
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

14
13
13
12
12
12
11
11
11
10
12
15
15
15
16
16
17
17
15
15
16
18
18
19

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
9
9
9
10
12
12
12
12
12
13
13
13
14
14
14
15
15
16
16
15
16
15
13

Relative Humidity (%)

57
57
56
56
62
80
83
86
89
92
95
92
95
95
95
95
93
93
96
93
86
85
80
69

Pressure (mb)

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

Ozone (du)

277
275
273
271
268
268
267
266
266
265
263
262
261
258
255
258
259
263
264
265
266
266
265
264

Wednesday 17

Waning Crescent 12%

02:35

18:03

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: 06:55, Set: 19:22, Transit: 13:08. Moon - Rise: 02:35, Set: 18:03. Civil Dark: 19:55 - 06:22. Nautical Dark: 20:34 - 05:43. Astro Dark: 21:15 - 05:02

Total Clouds (% Sky Obscured)

97
97
97
98
99
100
100
100
100
100
100
100
100
100
100
97
94
92
83
75
59
71
83
100

Low Clouds (% Sky Obscured)

54
49
46
45
44
42
39
36
31
33
36
38
40
41
42
36
32
27
28
26
23
38
55
72

Medium Clouds (% Sky Obscured)

82
82
78
85
94
100
81
57
35
40
50
35
44
61
76
79
76
67
57
49
45
55
62
67

High Clouds (% Sky Obscured)

83
86
89
91
95
100
100
100
100
94
100
100
100
100
100
95
90
85
65
43
20
15
8
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 (%)

1
2
2
6
3
4
12
12
7
6
6
2
8
10
8
12
11
5
8
9
5
34
43
43

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)

20
19
18
17
15
15
14
12
11
10
9
9
8
7
6
5
4
4
3
3
3
4
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

64
64
66
71
73
77
77
79
80
82
83
84
89
86
84
82
84
87
90
83
78
72
78
83

Pressure (mb)

1011
1012
1012
1012
1012
1012
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015

Ozone (du)

264
262
263
264
264
263
263
263
262
263
262
262
262
263
264
265
267
268
270
269
269
268
267
266

Thursday 18

Waning Crescent 6%

03:56

18:23

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 OK
02 OK
03 OK
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 06:56, Set: 19:20, Transit: 13:07. Moon - Rise: 03:56, Set: 18:23. Civil Dark: 19:53 - 06:24. Nautical Dark: 20:32 - 05:45. Astro Dark: 21:13 - 05:04

Total Clouds (% Sky Obscured)

100
99
98
89
81
75
71
68
65
64
63
47
29
26
34
54
77
90
92
90
91
93
95
97

Low Clouds (% Sky Obscured)

73
69
73
58
44
30
20
10
0
17
35
47
29
26
34
54
61
72
66
61
62
73
80
88

Medium Clouds (% Sky Obscured)

62
54
42
35
24
19
14
15
13
11
8
2
3
4
6
19
30
39
26
24
18
19
20
21

High Clouds (% Sky Obscured)

1
1
1
2
2
2
21
38
56
64
63
47
29
26
12
14
18
21
16
10
2
5
9
11

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 (%)

41
36
21
16
10
7
7
1
0
1
2
2
4
5
0
2
4
4
12
15
16
15
15
15

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
2
2
2
3
4
6
5
4
4
4
3
3
3
3
3
3
3
2
3
4
4
6
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
87
86
85
85
86
86
87
90
95
95
95
95
95
93
95
93
93
91
87
80
76
71
66

Pressure (mb)

1015
1015
1015
1015
1015
1015
1016
1016
1017
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1019
1020
1019
1019

Ozone (du)

266
265
265
265
266
267
267
267
268
268
269
269
269
270
270
271
271
272
273
273
273
273
273
273

Friday 19

Waning Crescent 2%

05:13

18:38

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

Sun - Rise: 06:58, Set: 19:18, Transit: 13:07. Moon - Rise: 05:13, Set: 18:38. Civil Dark: 19:50 - 06:25. Nautical Dark: 20:29 - 05:46. Astro Dark: 21:10 - 05:06

Total Clouds (% Sky Obscured)

98
99
100
100
99
100
94
88
81
78
79
80
87
95
100
100
100
100

Low Clouds (% Sky Obscured)

87
83
79
76
72
73
77
81
81
78
75
69
69
70
71
77
83
88

Medium Clouds (% Sky Obscured)

25
25
20
41
58
75
73
69
50
45
40
40
45
45
55
77
90
100

High Clouds (% Sky Obscured)

40
68
96
94
94
100
87
80
70
70
70
40
53
77
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
8
7
6
5
4
3
5
7
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
Very Light Rain
Light Rain
Light Rain
Light Rain
None
Very Light Rain
Light Rain
Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

24
29
31
27
23
14
35
56
77
79
73
57
71
75
72
60
47
45

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.2
0.4
0.5
0.4
0
0.3
0.4
0.4
0.2
0
0

Wind Speed/Direction (mph)

10
11
12
12
11
10
9
9
11
14
14
14
15
14
12
11
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

62
63
65
66
74
82
92
92
92
90
90
93
95
93
92
92
92
92

Pressure (mb)

1019
1018
1018
1018
1017
1017
1017
1016
1016
1015
1015
1014
1014
1013
1013
1012
1012
1012

Ozone (du)

273
272
271
270
270
269
268
269
270
270
271
271
271
272
272
273
275
278

Welcome to Clear Outside

Forecast for Alphington, Devon, United Kingdom (50.70,-3.52)

Generated: 13/09/25 12:45:24. Forecast: 13/09/25 to 19/09/25. Timezone: UTC+1.00