Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 12%

02:35

18:23

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

Sun - Rise: 06:55, Set: 19:20, Transit: 13:07. Moon - Rise: 02:35, Set: 18:23. Civil Dark: 19:53 - 06:22. Nautical Dark: 20:32 - 05:43. Astro Dark: 21:13 - 05:02

Total Clouds (% Sky Obscured)

87
100
100
93
99
97
95
87
81
75
78
77
77
89
98
97
74
79
92
99
93
84
80
86

Low Clouds (% Sky Obscured)

85
80
78
87
90
91
77
74
80
63
74
74
75
80
65
89
58
60
48
49
67
74
78
80

Medium Clouds (% Sky Obscured)

2
0
0
26
52
49
44
26
2
2
2
3
2
9
17
11
22
52
46
0
8
1
3
3

High Clouds (% Sky Obscured)

0
0
0
0
0
3
4
5
16
75
12
32
4
10
56
90
74
79
92
70
85
76
30
31

ISS Passover

Visibility (miles)

-
-
-
-
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

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
2
2
8
6
6
2
1
1
4
2
2
1
1
2
1
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
14
14
16
11
10
10
11
12
13
16
16
17
16
17
17
16
14
12
10
8
7
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

16
16
16
16
17
17
16
16
16
16
16
15
16
15
16
16
16
16
16
16
16
16
16
16

Relative Humidity (%)

93
94
95
93
93
93
90
90
89
82
78
74
74
70
71
71
73
77
84
86
93
93
95
96

Pressure (mb)

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

Ozone (du)

265
264
265
266
267
267
266
265
265
264
263
262
262
262
262
261
260
258
259
259
259
259
259
259

Friday 19

Waning Crescent 6%

03:56

18:38

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

Sun - Rise: 06:56, Set: 19:18, Transit: 13:07. Moon - Rise: 03:56, Set: 18:38. Civil Dark: 19:50 - 06:24. Nautical Dark: 20:29 - 05:45. Astro Dark: 21:10 - 05:04

Total Clouds (% Sky Obscured)

76
70
87
81
84
88
79
78
73
85
79
73
90
76
77
77
76
67
65
79
75
58
69
76

Low Clouds (% Sky Obscured)

76
70
80
76
80
86
76
73
63
79
70
61
54
67
67
67
70
67
65
56
35
24
48
47

Medium Clouds (% Sky Obscured)

3
3
3
1
3
3
2
5
3
21
16
22
27
15
14
15
21
9
2
0
5
4
0
0

High Clouds (% Sky Obscured)

35
11
48
35
20
23
20
20
15
20
15
17
69
48
71
56
59
34
42
78
75
58
68
65

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
7
7
7
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
3
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)

6
6
6
5
5
4
4
4
4
5
9
11
11
11
11
10
9
8
6
4
3
3
3
3

Chance of Frost

Temperature (°C)

16
16
15
15
15
15
14
14
15
16
18
19
20
20
20
21
21
20
19
17
16
15
14
14

Feels Like (°C)

16
16
16
15
14
14
14
14
15
16
17
17
17
19
19
20
21
21
21
19
17
17
16
16

Dew Point (°C)

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

Relative Humidity (%)

95
95
96
96
96
96
96
98
96
90
83
78
70
68
64
61
58
59
68
77
83
84
86
87

Pressure (mb)

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

Ozone (du)

259
258
259
260
261
263
262
262
262
263
263
264
266
266
266
266
268
270
269
268
269
270
270
270

Saturday 20

Waning Crescent 2%

05:13

18:50

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

Sun - Rise: 06:58, Set: 19:16, Transit: 13:07. Moon - Rise: 05:13, Set: 18:50. Civil Dark: 19:48 - 06:25. Nautical Dark: 20:27 - 05:46. Astro Dark: 21:07 - 05:06

Total Clouds (% Sky Obscured)

90
96
83
87
100
100
100
100
100
100
100
100
76
73
90
44
45
33
19
50
67
52
60
56

Low Clouds (% Sky Obscured)

60
80
78
81
80
43
56
61
73
84
68
72
48
52
64
27
22
4
18
33
61
52
57
54

Medium Clouds (% Sky Obscured)

0
0
0
0
66
70
58
43
62
56
46
42
50
8
34
41
20
33
2
25
22
1
2
2

High Clouds (% Sky Obscured)

77
85
25
40
100
100
100
100
93
91
100
93
20
20
14
14
25
30
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
10
0
0
0
3
11
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
1
3
23
55
58
23
24
12
4
0
0
4
9
8
18
7
8

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

3
3
4
5
5
5
4
4
4
8
10
13
14
15
15
15
14
14
12
10
9
13
13
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
89
87
90
90
90
90
90
86
81
73
71
68
63
59
60
62
74
92
90
79
86
86

Pressure (mb)

1014
1014
1013
1013
1012
1012
1011
1011
1010
1010
1010
1010
1009
1009
1008
1009
1009
1009
1009
1009
1010
1010
1010
1010

Ozone (du)

270
269
268
267
267
266
266
266
267
267
269
270
270
271
273
273
272
272
273
277
276
278
278
280

Sunday 21

New Moon 0%

06:27

19:01

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

Sun - Rise: 07:00, Set: 19:13, Transit: 13:06. Moon - Rise: 06:27, Set: 19:01. Civil Dark: 19:46 - 06:27. Nautical Dark: 20:25 - 05:48. Astro Dark: 21:05 - 05:08

Total Clouds (% Sky Obscured)

50
44
30
14
35
51
66
65
70
60
54
52
68
74
41
50
97
97
94
84
92
93
93
92

Low Clouds (% Sky Obscured)

49
44
30
14
33
46
59
63
70
60
54
52
68
74
41
50
75
80
80
72
62
55
46
44

Medium Clouds (% Sky Obscured)

0
0
0
0
14
27
41
45
49
44
44
43
43
44
41
45
94
95
79
75
90
91
89
88

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
30
0
7
4
5
8
7
6

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
7
7
6
5
7
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
Very Light Rain
Very Light Rain
None
None
Very Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

19
7
19
11
28
30
24
37
53
60
59
52
52
60
56
47
53
53
48
51
43
22
29
26

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

10
10
8
6
4
5
5
6
7
9
10
12
13
14
14
14
13
13
12
12
12
12
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
86
83
86
93
93
93
91
87
84
83
82
80
79
75
70
68
71
74
77
80
79
79
80

Pressure (mb)

1010
1010
1010
1010
1010
1009
1009
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1011
1011
1012
1012
1013
1013

Ozone (du)

282
283
286
286
287
289
292
293
295
296
299
301
302
304
307
309
308
307
304
304
305
307
308
309

Monday 22

Waxing Crescent 1%

07:39

19:12

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

Sun - Rise: 07:01, Set: 19:11, Transit: 13:06. Moon - Rise: 07:39, Set: 19:12. Civil Dark: 19:44 - 06:28. Nautical Dark: 20:22 - 05:50. Astro Dark: 21:02 - 05:10

Total Clouds (% Sky Obscured)

90
84
81
75
70
65
63
61
54
51
39
26
13
21
26
35
52
70
86
36
41
47
43
35

Low Clouds (% Sky Obscured)

38
36
37
39
45
43
40
29
29
34
29
24
13
21
26
35
40
46
51
8
20
28
30
34

Medium Clouds (% Sky Obscured)

85
78
78
72
38
28
29
27
28
51
39
26
13
15
20
30
52
70
63
36
26
12
8
6

High Clouds (% Sky Obscured)

5
4
35
45
39
35
35
40
18
18
5
1
11
11
2
1
2
1
6
15
13
10
2
2

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
8
9
9
9
9
5
9
8
8
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 (%)

21
22
17
9
22
20
22
22
27
18
12
21
29
31
33
36
40
29
10
19
17
13
11
7

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)

10
10
9
9
9
10
10
10
11
13
14
15
15
15
14
13
13
13
13
12
6
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
9
9
8
8
8
8
9
9
10
10
10
11
11
11
12
12
12
11
11
9
8
7
7

Relative Humidity (%)

83
87
87
87
87
87
88
91
93
90
87
82
78
79
78
82
84
84
84
86
84
81
80
81

Pressure (mb)

1013
1013
1014
1014
1014
1014
1015
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1018
1018
1020
1021
1021
1021

Ozone (du)

310
310
309
309
308
309
309
309
309
310
311
310
311
312
313
313
314
313
313
313
314
314
315
316

Tuesday 23

Waxing Crescent 3%

08:50

19:23

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

Sun - Rise: 07:03, Set: 19:09, Transit: 13:06. Moon - Rise: 08:50, Set: 19:23. Civil Dark: 19:41 - 06:30. Nautical Dark: 20:20 - 05:51. Astro Dark: 21:00 - 05:11

Total Clouds (% Sky Obscured)

36
28
21
11
10
8
7
29
50
71
77
82
86
73
57
42
43
42
43
49
56
63
60
49

Low Clouds (% Sky Obscured)

34
26
19
11
10
8
7
25
42
60
51
46
40
36
28
24
26
36
39
41
42
45
43
36

Medium Clouds (% Sky Obscured)

3
2
1
0
0
0
0
5
15
26
30
34
46
50
54
42
43
42
39
33
26
23
21
18

High Clouds (% Sky Obscured)

5
6
4
1
1
0
0
3
4
3
4
4
4
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 (%)

1
1
0
0
0
0
0
1
1
1
5
6
1
7
6
1
6
8
6
14
16
8
10
6

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)

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

Chance of Frost

Temperature (°C)

9
8
8
8
8
8
8
7
9
10
11
12
13
14
14
14
15
14
12
11
11
10
9
9

Feels Like (°C)

7
7
5
6
6
6
6
6
5
6
6
6
6
7
11
10
10
11
11
12
9
10
10
9

Dew Point (°C)

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

Relative Humidity (%)

82
84
84
85
85
87
85
85
78
72
66
60
54
49
47
46
45
52
60
67
72
80
85
88

Pressure (mb)

1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1020
1020
1020
1020
1020
1020
1021
1021
1021

Ozone (du)

317
318
316
315
314
313
312
311
311
311
311
310
310
310
311
311
312
311
310
308
307
306
305
304

Wednesday 24

Waxing Crescent 7%

10:02

19:36

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

Sun - Rise: 07:04, Set: 19:07, Transit: 13:05. Moon - Rise: 10:02, Set: 19:36. Civil Dark: 19:39 - 06:32. Nautical Dark: 20:18 - 05:53. Astro Dark: 20:57 - 05:13

Total Clouds (% Sky Obscured)

42
43
40
43
62
72
83
82
75
67
68
67
70
74
67
71
63
59
52
47
31
26
19
16

Low Clouds (% Sky Obscured)

28
31
35
41
46
49
51
37
20
2
18
35
53
42
30
20
34
45
52
44
31
26
19
16

Medium Clouds (% Sky Obscured)

16
16
14
11
9
9
8
12
15
22
35
33
32
38
44
50
45
50
52
47
31
26
19
15

High Clouds (% Sky Obscured)

0
1
1
1
23
42
62
37
21
1
1
0
0
30
60
71
63
59
52
43
12
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

2
5
3
1
3
3
1
1
1
0
0
0
0
4
8
10
56
78
95
93
83
64
40
20

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.5
0.7
0.7
0.5
0.3
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

8
8
8
8
8
8
7
7
9
10
12
13
14
15
15
16
15
14
13
11
11
10
10
10

Feels Like (°C)

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

Dew Point (°C)

7
7
7
7
7
6
6
6
6
6
6
6
5
5
5
6
5
5
6
6
7
7
7
6

Relative Humidity (%)

90
91
93
91
91
91
91
91
82
73
66
61
55
51
50
51
50
56
63
71
75
77
78
78

Pressure (mb)

1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021
1021
1021
1020
1020
1020
1020
1021

Ozone (du)

303
303
302
302
302
301
300
299
299
298
298
298
298
298
298
298
298
298
297
297
297
297
296
296

Welcome to Clear Outside

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

Generated: 18/09/25 04:03:00. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+1.00