Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 6%

03:46

18:19

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
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 06:49, Set: 19:13, Transit: 13:00. Moon - Rise: 03:46, Set: 18:19. Civil Dark: 19:47 - 06:16. Nautical Dark: 20:27 - 05:36. Astro Dark: 21:08 - 04:55

Total Clouds (% Sky Obscured)

100
100
100
98
100
100
100
98
88
100
100
100
100
100
97
99
81
71
73
72
85
61
68
100

Low Clouds (% Sky Obscured)

85
72
81
80
71
66
59
63
62
66
73
83
75
70
67
84
69
70
73
70
83
51
42
42

Medium Clouds (% Sky Obscured)

1
1
0
0
0
0
0
14
52
3
16
20
15
20
20
54
26
1
2
10
1
2
10
14

High Clouds (% Sky Obscured)

50
3
2
53
100
99
96
79
88
100
100
100
100
96
92
96
63
65
54
48
59
61
68
100

ISS Passover

Visibility (miles)

-
-
-
-
-
-
9
9
9
9
9
9
9
9
9
9
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

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
85
84
82
80
85
78
86
93
95
95
96
96
95
96
98
98
98
95
96
92
83
77
69

Pressure (mb)

1018
1018
1018
1018
1018
1018
1019
1019
1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1019
1019
1019
1018
1018
1018

Ozone (du)

263
263
263
264
264
262
260
259
259
259
258
258
257
258
258
258
259
259
259
257
257
258
258
260

Friday 19

Waning Crescent 2%

05:04

18:32

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
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 06:51, Set: 19:11, Transit: 13:00. Moon - Rise: 05:04, Set: 18:32. Civil Dark: 19:44 - 06:17. Nautical Dark: 20:24 - 05:38. Astro Dark: 21:06 - 04:56

Total Clouds (% Sky Obscured)

100
100
100
97
100
100
100
100
100
100
90
100
100
100
60
84
94
96
100
100
97
100
100
100

Low Clouds (% Sky Obscured)

64
47
51
56
77
75
63
63
36
30
50
51
48
56
60
61
63
81
83
76
63
65
76
59

Medium Clouds (% Sky Obscured)

5
2
2
5
0
3
17
13
0
0
0
0
2
3
27
38
67
51
52
41
26
36
67
66

High Clouds (% Sky Obscured)

100
100
94
55
100
100
100
100
100
100
84
57
100
100
27
53
68
83
100
80
90
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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
7
18
34
13

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)

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

Chance of Frost

Temperature (°C)

20
21
21
21
20
19
17
16
16
15
14
14
14
14
13
13
14
14
14
14
15
15
16
16

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

61
52
47
45
42
48
55
66
70
70
73
73
75
78
79
78
78
83
89
95
93
86
78
72

Pressure (mb)

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

Ozone (du)

258
258
261
264
265
264
265
267
268
267
266
266
267
268
268
267
266
265
264
264
265
264
263
263

Saturday 20

Waning Crescent 2%

06:19

18:44

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

Sun - Rise: 06:52, Set: 19:09, Transit: 13:00. Moon - Rise: 06:19, Set: 18:44. Civil Dark: 19:42 - 06:19. Nautical Dark: 20:22 - 05:40. Astro Dark: 21:03 - 04:58

Total Clouds (% Sky Obscured)

100
100
100
100
64
83
47
56
59
62
38
59
75
47
40
39
39
43
51
52
77
94
83
79

Low Clouds (% Sky Obscured)

39
60
59
80
64
83
47
56
59
62
38
57
74
47
40
39
39
42
51
49
68
72
76
74

Medium Clouds (% Sky Obscured)

62
62
89
71
59
3
3
0
0
0
0
0
0
0
0
7
5
4
17
10
16
23
14
15

High Clouds (% Sky Obscured)

100
100
91
86
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
4
9
7
6
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

12
43
42
36
42
53
12
0
0
1
0
12
1
0
1
3
3
3
2
3
5
4
19
5

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

13
15
17
17
19
20
19
16
14
13
13
12
11
10
10
9
8
8
7
5
5
7
9
10

Chance of Frost

Temperature (°C)

17
18
18
17
17
17
15
13
12
11
11
11
11
11
11
10
10
10
10
10
10
11
11
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
63
73
72
81
75
85
89
87
90
88
83
84
85
93
96
95
96
96
96
91
85
77
75

Pressure (mb)

1008
1007
1006
1006
1006
1005
1006
1007
1008
1009
1009
1009
1009
1009
1009
1009
1009
1009
1010
1011
1012
1013
1013
1014

Ozone (du)

264
266
267
271
271
280
283
285
287
288
292
296
297
297
296
296
298
300
300
301
302
304
306
308

Sunday 21

New Moon 0%

07:32

18:54

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

Sun - Rise: 06:54, Set: 19:06, Transit: 12:59. Moon - Rise: 07:32, Set: 18:54. Civil Dark: 19:40 - 06:21. Nautical Dark: 20:19 - 05:41. Astro Dark: 21:00 - 05:00

Total Clouds (% Sky Obscured)

96
97
98
99
98
98
98
98
97
96
93
74
91
93
94
83
79
38
35
42
41
43
51
56

Low Clouds (% Sky Obscured)

92
94
95
97
91
84
77
67
58
50
40
32
24
34
46
47
47
38
35
42
36
34
42
46

Medium Clouds (% Sky Obscured)

21
24
23
22
27
66
84
46
43
50
45
39
37
37
34
36
34
19
4
7
9
12
8
4

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
9
1
0
1
19
40
63
43
20
0
1
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 (%)

5
5
4
2
3
3
3
9
11
11
11
11
8
7
5
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
61
58
58
59
60
56
54
58
67
68
74
74
67
68
70
74
75
78
79
78
69
61
53

Pressure (mb)

1014
1014
1015
1015
1015
1016
1017
1017
1018
1019
1019
1020
1020
1020
1021
1021
1021
1022
1022
1023
1023
1024
1024
1024

Ozone (du)

308
308
309
309
309
311
312
314
315
315
316
315
315
315
316
316
317
318
317
317
318
317
316
315

Monday 22

Waxing Crescent 1%

08:44

19:04

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

Sun - Rise: 06:56, Set: 19:04, Transit: 12:59. Moon - Rise: 08:44, Set: 19:04. Civil Dark: 19:37 - 06:22. Nautical Dark: 20:17 - 05:43. Astro Dark: 20:58 - 05:02

Total Clouds (% Sky Obscured)

59
45
30
15
20
22
25
20
13
8
9
11
12
17
22
26
34
39
46
56
70
76
94
95

Low Clouds (% Sky Obscured)

54
42
28
14
19
22
25
20
12
7
8
10
12
17
22
26
34
39
46
29
40
52
53
54

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
1
2
3
3
2
2
2
2
2
10
11
11
11
15

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
1
2
3
2
1
2
2
1
1
1
3
52
70
76
62
33

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
3
4
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
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
14
14
13
13
12
10
8
7
7
7
7
7
7
6
6
5
5
5
5
6
7
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

47
43
41
41
43
45
51
59
63
65
65
65
67
74
76
79
82
83
88
89
81
74
67
60

Pressure (mb)

1024
1024
1024
1024
1024
1024
1025
1025
1026
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1026
1026
1026
1026

Ozone (du)

314
313
312
311
311
309
307
305
304
304
303
302
301
301
301
300
299
299
299
299
300
300
300
300

Tuesday 23

Waxing Crescent 3%

09:57

19:14

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
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 06:57, Set: 19:02, Transit: 12:59. Moon - Rise: 09:57, Set: 19:14. Civil Dark: 19:35 - 06:24. Nautical Dark: 20:14 - 05:45. Astro Dark: 20:55 - 05:04

Total Clouds (% Sky Obscured)

93
95
96
98
99
99
100
100
100
100
100
100
95
92
85
87
84
84
85
86
88
93
92
95

Low Clouds (% Sky Obscured)

55
66
77
86
81
77
72
79
85
90
81
72
60
49
49
48
51
54
53
66
82
93
92
95

Medium Clouds (% Sky Obscured)

19
27
32
32
32
36
31
24
13
11
13
14
15
20
25
40
24
22
17
12
7
6
8
9

High Clouds (% Sky Obscured)

4
5
6
6
24
28
41
57
75
90
90
95
95
92
85
87
73
45
23
30
24
16
32
51

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

Precipitation Probability (%)

1
19
24
22
27
30
35
30
28
29
41
48
53
62
73
84
79
74
71
59
46
28
26
22

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.4
0.6
0.5
0.4
0.4
0.3
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

55
49
48
47
47
53
58
66
69
74
80
84
88
93
93
93
91
93
91
91
82
74
66
59

Pressure (mb)

1026
1025
1025
1025
1024
1024
1024
1025
1025
1025
1025
1025
1025
1025
1024
1024
1024
1024
1024
1024
1024
1024
1025
1024

Ozone (du)

301
301
301
301
302
301
301
301
302
303
303
305
306
307
308
308
309
310
311
313
313
312
312
312

Wednesday 24

Waxing Crescent 7%

11:11

19:26

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
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 06:59, Set: 19:00, Transit: 12:58. Moon - Rise: 11:11, Set: 19:26. Civil Dark: 19:33 - 06:26. Nautical Dark: 20:12 - 05:47. Astro Dark: 20:53 - 05:06

Total Clouds (% Sky Obscured)

95
94
94
95
94
89
79
70
69
63
58
54
54
50
60
73
82
91
100
100
100
100
96
92

Low Clouds (% Sky Obscured)

92
85
78
71
75
78
79
70
66
61
58
54
54
50
60
73
82
90
97
99
100
100
93
88

Medium Clouds (% Sky Obscured)

10
15
15
15
14
12
7
8
9
15
25
25
30
30
35
35
35
35
30
35
35
35
25
30

High Clouds (% Sky Obscured)

69
74
80
84
86
89
77
70
67
63
58
54
54
50
60
73
82
91
96
96
91
87
70
56

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

Precipitation Probability (%)

11
21
26
29
24
21
12
19
16
10
17
17
9
21
28
32
42
50
58
59
60
63
49
39

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
6
12
12
11
11
11
11
8
8
9
8
9
8
6
6
7
7
7
7
8
8
9
9

Dew Point (°C)

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

Relative Humidity (%)

52
46
46
47
47
51
56
59
64
69
76
78
84
90
84
80
76
77
78
80
77
75
73
67

Pressure (mb)

1024
1024
1024
1023
1023
1023
1024
1024
1025
1025
1026
1026
1026
1026
1026
1025
1025
1025
1025
1025
1025
1025
1025
1025

Ozone (du)

312
311
311
311
310
310
310
311
310
310
310
309
309
308
307
306
305
304
304
303
303
302
302
302

Forecast for Swindon, Swindon, United Kingdom (51.56,-1.78)

Generated: 18/09/25 18:35:41. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+1.00