Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 16

Waning Crescent 30%

01:21

17:40

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
03 Bad

Sun - Rise: 06:58, Set: 19:30, Transit: 13:14. Moon - Rise: 01:21, Set: 17:40. Civil Dark: 20:03 - 06:25. Nautical Dark: 20:42 - 05:46. Astro Dark: 21:23 - 05:05

Total Clouds (% Sky Obscured)

64
72
62
83
97
100
100
100
100
99
100
100
100
100
100
100
100
100
99
100
100
95
92
93

Low Clouds (% Sky Obscured)

38
42
49
61
44
47
55
55
79
75
73
39
62
59
77
60
42
52
70
100
100
78
83
86

Medium Clouds (% Sky Obscured)

51
45
45
38
57
40
63
85
72
90
98
100
96
100
100
100
98
100
96
100
93
92
79
57

High Clouds (% Sky Obscured)

64
72
62
83
97
99
99
100
97
93
100
100
100
100
100
100
100
100
94
92
66
57
3
1

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
8
9
9
9
5
7
5
8
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
Very Light Rain
Very Light Rain
None
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

0
0
0
17
9
20
11
15
22
24
28
40
44
50
65
68
61
68
95
95
71
65
41
12

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.3
0
0.2
0.7
0.8
0.2
0.2
0
0

Wind Speed/Direction (mph)

14
12
12
10
11
11
13
13
13
12
11
11
10
9
8
7
7
9
11
14
16
19
20
21

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
76
76
79
80
76
70
68
65
65
65
68
69
74
80
86
89
90
89
90
93
93
93
92

Pressure (mb)

1019
1019
1019
1019
1020
1020
1021
1021
1021
1021
1021
1021
1021
1020
1020
1020
1019
1019
1018
1018
1016
1015
1015
1014

Ozone (du)

293
291
290
288
285
284
283
281
279
277
275
274
272
270
267
265
263
262
261
260
260
258
257
257

Wednesday 17

Waning Crescent 20%

02:43

18:08

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
03 Bad

Sun - Rise: 06:59, Set: 19:28, Transit: 13:14. Moon - Rise: 02:43, Set: 18:08. Civil Dark: 20:01 - 06:27. Nautical Dark: 20:40 - 05:48. Astro Dark: 21:21 - 05:07

Total Clouds (% Sky Obscured)

100
99
100
94
100
99
98
98
100
95
98
96
100
100
100
100
100
95
97
97
85
91
94
89

Low Clouds (% Sky Obscured)

76
94
100
90
100
97
87
88
100
92
90
91
100
100
100
100
100
91
91
88
64
85
81
78

Medium Clouds (% Sky Obscured)

90
51
92
89
78
84
94
88
90
71
94
74
49
41
51
39
48
8
60
69
46
62
62
49

High Clouds (% Sky Obscured)

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

ISS Passover

Visibility (miles)

9
9
9
9
9
5
3
9
8
9
5
9
8
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
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

6
12
34
28
47
61
53
41
28
38
30
37
37
28
30
25
26
23
10
19
9
11
11
11

Precipitation Amount (mm)

0
0
0
0
0
0.5
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
16
17
17
17
17
17
18
18
18
18
18
18
17
17
17
17
17
17
17
17
17
17
17

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
92
92
93
92
93
93
93
95
96
95
95
95
95
93
95
96
95
95
95
95
96
92
92

Pressure (mb)

1014
1013
1013
1013
1013
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

258
259
258
257
258
258
262
263
262
261
260
260
260
261
261
262
264
264
263
262
262
264
265
266

Thursday 18

Waning Crescent 12%

04:03

18:28

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

Sun - Rise: 07:01, Set: 19:26, Transit: 13:13. Moon - Rise: 04:03, Set: 18:28. Civil Dark: 19:59 - 06:28. Nautical Dark: 20:37 - 05:50. Astro Dark: 21:18 - 05:09

Total Clouds (% Sky Obscured)

83
97
69
52
43
41
42
59
77
69
75
91
96
100
100
100
98
89
81
91
83
84
87
89

Low Clouds (% Sky Obscured)

74
92
69
52
43
41
42
59
46
64
56
58
51
54
66
72
65
66
79
70
58
61
60
62

Medium Clouds (% Sky Obscured)

41
38
0
0
0
0
3
22
62
63
62
85
88
89
76
84
50
21
27
20
9
14
20
26

High Clouds (% Sky Obscured)

0
0
0
0
0
0
3
7
6
24
35
43
62
100
100
99
90
70
37
51
60
48
42
44

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

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)

14
13
13
13
13
16
17
17
17
18
17
17
16
14
12
10
9
9
9
8
8
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

16
16
16
16
16
16
16
16
15
16
16
16
16
16
16
16
16
16
15
15
15
15
14
14

Relative Humidity (%)

92
93
92
95
95
90
86
80
77
78
78
80
81
85
89
92
96
96
95
96
96
96
95
95

Pressure (mb)

1016
1016
1016
1016
1017
1017
1017
1018
1018
1018
1018
1017
1017
1017
1017
1018
1018
1018
1018
1018
1017
1017
1016
1016

Ozone (du)

267
268
268
268
268
267
267
267
267
267
267
267
267
268
268
267
266
266
266
266
266
265
264
263

Friday 19

Waning Crescent 6%

04:03

18:43

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
03 Bad

Sun - Rise: 07:03, Set: 19:24, Transit: 13:13. Moon - Rise: 04:03, Set: 18:43. Civil Dark: 19:56 - 06:30. Nautical Dark: 20:35 - 05:51. Astro Dark: 21:15 - 05:11

Total Clouds (% Sky Obscured)

93
97
100
99
94
91
90
93
87
85
97
100
100
100
100
94
99
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

69
74
78
69
60
51
55
60
61
61
61
60
55
51
46
46
48
55
90
89
86
80
71
33

Medium Clouds (% Sky Obscured)

17
9
2
28
23
2
33
46
37
48
71
68
86
98
93
69
30
100
72
74
100
82
30
43

High Clouds (% Sky Obscured)

63
85
100
96
82
83
63
67
42
59
90
100
97
94
92
81
97
100
100
97
94
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
8
9
9
7
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
Very Light Rain
Very Light Rain
None
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Very Light Rain
None

Precipitation Probability (%)

4
3
0
1
0
0
0
1
1
9
19
19
28
42
50
60
68
81
92
92
85
81
62
31

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
93
95
95
93
89
83
77
73
68
67
69
70
77
82
87
93
95
95
95
95
95
92
90

Pressure (mb)

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

Ozone (du)

264
265
265
265
266
266
267
267
268
269
270
269
271
272
272
271
272
274
274
275
274
275
275
277

Saturday 20

Waning Crescent 2%

05:19

18:56

04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 OK
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

Sun - Rise: 07:04, Set: 19:21, Transit: 13:13. Moon - Rise: 05:19, Set: 18:56. Civil Dark: 19:54 - 06:32. Nautical Dark: 20:33 - 05:53. Astro Dark: 21:13 - 05:13

Total Clouds (% Sky Obscured)

97
95
92
91
87
84
84
76
70
72
22
29
30
27
28
53
50
52
57
72
82
83
82
82

Low Clouds (% Sky Obscured)

40
41
49
42
40
39
32
29
23
29
22
29
30
27
28
36
29
26
40
58
76
77
75
71

Medium Clouds (% Sky Obscured)

3
16
1
0
0
0
60
20
22
1
0
0
0
0
0
1
1
1
14
26
39
27
15
4

High Clouds (% Sky Obscured)

82
63
35
30
24
27
20
20
30
30
0
0
0
0
0
53
50
52
50
25
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
7
9
9
8
7
6
7
8
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 (%)

22
12
5
6
12
2
6
9
16
12
23
27
30
30
26
23
30
38
40
39
38
30
26
29

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)

11
10
10
9
9
10
11
13
15
18
17
17
17
16
14
13
9
8
6
6
7
8
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

13
13
12
12
12
12
12
11
10
10
10
10
11
11
11
11
11
11
10
9
9
7
7
6

Relative Humidity (%)

92
95
95
93
93
87
80
74
66
64
63
66
69
72
78
83
84
89
90
84
80
73
72
70

Pressure (mb)

1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1012

Ozone (du)

278
279
281
283
284
285
286
289
292
295
303
310
315
316
316
317
318
318
319
319
320
320
321
323

Sunday 21

New Moon 0%

06:33

19:07

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
03 Bad

Sun - Rise: 07:06, Set: 19:19, Transit: 13:12. Moon - Rise: 06:33, Set: 19:07. Civil Dark: 19:52 - 06:33. Nautical Dark: 20:30 - 05:55. Astro Dark: 21:10 - 05:15

Total Clouds (% Sky Obscured)

86
84
88
88
87
75
69
65
63
68
73
78
67
58
52
59
64
62
52
57
57
57
49
35

Low Clouds (% Sky Obscured)

70
72
76
71
69
70
69
64
53
59
63
69
63
56
52
50
52
50
48
50
53
57
48
34

Medium Clouds (% Sky Obscured)

3
2
0
0
0
0
18
35
49
51
55
58
60
58
52
59
45
24
27
27
29
22
19
15

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
5
9
14
9
5
1
1
3
2
1
1
1
0
0
0

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

35
38
41
46
56
73
91
95
95
95
91
70
57
47
43
39
41
51
42
36
32
37
36
31

Precipitation Amount (mm)

0
0
0
0
0
0.3
0.6
1
1.5
1.1
0.7
0.4
0.2
0
0
0
0
0.3
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

12
11
11
11
12
12
13
13
13
13
12
13
13
12
12
12
11
11
11
11
10
10
10
10

Feels Like (°C)

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

Dew Point (°C)

6
7
7
8
9
9
9
10
10
11
10
10
9
10
10
10
9
9
9
8
8
7
7
7

Relative Humidity (%)

70
73
77
81
81
80
77
81
84
89
86
83
79
83
84
87
87
87
85
85
85
84
84
84

Pressure (mb)

1012
1012
1012
1011
1012
1012
1012
1012
1012
1013
1013
1013
1013
1014
1014
1014
1015
1016
1016
1017
1017
1017
1017
1018

Ozone (du)

325
326
328
330
330
330
331
330
329
328
328
328
328
329
330
330
330
330
330
330
330
330
330
330

Monday 22

Waxing Crescent 1%

07:45

19:18

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

Sun - Rise: 07:07, Set: 19:17, Transit: 13:12. Moon - Rise: 07:45, Set: 19:18. Civil Dark: 19:49 - 06:35. Nautical Dark: 20:28 - 05:56. Astro Dark: 21:08 - 05:16

Total Clouds (% Sky Obscured)

38
46
48
49
38
28
33
39
44
36
24
20
14
12
16
18
23
29
35
41
52

Low Clouds (% Sky Obscured)

33
18
9
13
22
28
20
11
0
13
24
20
14
12
16
18
22
22
22
23
24

Medium Clouds (% Sky Obscured)

12
9
7
17
25
28
28
19
16
23
24
20
14
12
16
18
23
29
35
41
52

High Clouds (% Sky Obscured)

0
0
0
16
29
28
33
39
44
36
24
20
14
12
16
18
23
29
35
41
36

ISS Passover

Visibility (miles)

8
8
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

Precipitation Type

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

Precipitation Probability (%)

29
26
22
21
18
5
14
19
24
37
44
52
50
50
44
39
34
17
32
31
17

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
6
6
6
7
7
8
8
9
11
11
10
11
10
10
8
8
9
9
8

Dew Point (°C)

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

Relative Humidity (%)

85
85
84
84
78
73
67
64
59
54
55
55
56
60
63
67
68
69
70
72
72

Pressure (mb)

1018
1018
1019
1019
1019
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

331
332
333
335
333
332
330
329
328
326
326
325
324
322
320
318
316
315
314
313
313

Forecast for Mawgan Porth, Cornwall, United Kingdom (50.46,-5.03)

Generated: 16/09/25 04:39:49. Forecast: 16/09/25 to 22/09/25. Timezone: UTC+1.00