Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 12%

03:45

18:23

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
04 Bad
05 Bad
06 Bad

Sun - Rise: 06:51, Set: 19:15, Transit: 13:02. Moon - Rise: 03:45, Set: 18:23. Civil Dark: 19:49 - 06:17. Nautical Dark: 20:30 - 05:37. Astro Dark: 21:12 - 04:54

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
74
57
48
70
56
94
89
96
100
100
99
99
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

92
85
84
85
91
54
61
52
45
67
55
51
37
29
47
49
67
55
65
69
64
50
47
52

Medium Clouds (% Sky Obscured)

5
16
15
0
15
9
9
0
0
0
2
48
20
96
26
88
34
49
10
25
53
66
7
48

High Clouds (% Sky Obscured)

51
100
100
99
100
98
65
57
48
66
56
65
45
77
100
100
97
94
100
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 (%)

28
32
33
13
11
4
2
5
7
1
1
2
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
8
11
15
16
16
16
17
18
17
16
14
13
12
12
10
11
11
11
11
10
10
9
8

Chance of Frost

Temperature (°C)

17
18
18
19
19
20
21
21
22
22
21
20
19
18
18
17
17
17
17
16
16
16
16
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
95
96
93
91
91
89
88
76
72
71
74
80
85
86
93
93
92
93
96
96
96
96
95

Pressure (mb)

1015
1015
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1017

Ozone (du)

261
260
260
261
261
261
261
262
262
261
260
259
259
259
259
262
262
261
260
261
264
264
264
263

Friday 19

Waning Crescent 6%

05:04

18:36

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
04 Bad
05 Bad
06 Bad

Sun - Rise: 06:52, Set: 19:13, Transit: 13:02. Moon - Rise: 05:04, Set: 18:36. Civil Dark: 19:47 - 06:19. Nautical Dark: 20:27 - 05:38. Astro Dark: 21:10 - 04:56

Total Clouds (% Sky Obscured)

100
97
100
100
90
100
98
71
77
95
94
79
94
83
88
100
75
100
98
92
100
65
100
100

Low Clouds (% Sky Obscured)

68
86
56
69
73
72
70
70
65
60
56
51
34
0
9
0
32
60
60
52
48
60
62
58

Medium Clouds (% Sky Obscured)

42
54
49
55
42
39
33
42
37
16
2
21
38
44
35
12
26
2
0
1
0
3
23
57

High Clouds (% Sky Obscured)

100
87
100
100
78
89
80
4
51
88
68
33
67
59
82
100
54
96
93
84
100
52
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
26
29
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
9
11
11
12
13
14
14
13
14
11
9
6
5
3
3
2
3
4
4
4
3
3
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
15
15
16
17
17
18
19
19
19
19
20
20
18
18
17
16
15
15
15
13
14
13
13

Dew Point (°C)

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

Relative Humidity (%)

96
92
86
80
72
66
60
56
55
56
59
65
76
82
86
89
90
90
92
93
93
95
93
95

Pressure (mb)

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

Ozone (du)

261
261
260
261
261
262
260
260
260
260
261
261
263
266
267
266
266
267
267
267
267
268
268
267

Saturday 20

Waning Crescent 2%

06:20

18:46

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 OK
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 OK
05 OK
06 Bad

Sun - Rise: 06:54, Set: 19:11, Transit: 13:02. Moon - Rise: 06:20, Set: 18:46. Civil Dark: 19:45 - 06:20. Nautical Dark: 20:25 - 05:40. Astro Dark: 21:07 - 04:58

Total Clouds (% Sky Obscured)

100
100
100
100
95
97
96
80
71
70
71
71
60
39
45
53
56
38
52
37
18
19
40
58

Low Clouds (% Sky Obscured)

46
73
84
89
84
70
88
68
59
53
51
51
38
39
36
29
37
14
20
27
18
19
37
42

Medium Clouds (% Sky Obscured)

50
41
36
90
52
29
66
24
12
70
62
71
56
4
38
53
5
35
4
3
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
95
67
44
30
30
32
8
36
60
53
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
7
7
8
9
9
9
9

Fog (%)

100
97
6
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
Very Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

0
0
0
1
8
46
47
44
27
4
1
0
23
6
6
10
32
67
53
29
20
5
3
0

Precipitation Amount (mm)

0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0.3
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

5
6
6
7
8
9
9
9
11
11
10
8
12
17
15
16
14
14
13
10
11
7
6
5

Chance of Frost

Temperature (°C)

13
14
15
17
18
19
19
19
20
20
20
19
17
14
13
13
13
13
13
13
12
11
10
11

Feels Like (°C)

13
14
16
17
17
18
18
18
19
19
18
19
14
10
11
9
9
9
10
11
10
11
11
10

Dew Point (°C)

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

Relative Humidity (%)

95
93
86
79
73
68
58
53
50
50
52
61
66
86
87
87
87
89
93
93
90
96
96
95

Pressure (mb)

1011
1010
1010
1010
1010
1009
1008
1007
1007
1007
1007
1008
1008
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1010

Ozone (du)

265
266
266
266
266
266
266
266
267
267
268
269
270
274
275
273
273
274
277
281
282
284
285
287

Sunday 21

New Moon 0%

No Rise

18:56

07 OK
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
04 Bad
05 Bad
06 Bad

Sun - Rise: 06:56, Set: 19:08, Transit: 13:01. Moon - Rise: No Rise, Set: 18:56. Civil Dark: 19:42 - 06:22. Nautical Dark: 20:22 - 05:42. Astro Dark: 21:04 - 05:00

Total Clouds (% Sky Obscured)

32
42
78
92
91
83
80
44
61
98
95
80
90
88
81
86
90
90
91
91
91
82
71
64

Low Clouds (% Sky Obscured)

32
42
78
85
85
83
80
44
61
72
55
39
34
31
27
39
47
57
52
46
40
36
35
31

Medium Clouds (% Sky Obscured)

0
0
0
3
5
8
49
32
41
51
54
71
85
83
58
66
80
66
80
87
87
67
67
61

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
39
1
0
0
0
0
0
0
0
0
0
1

ISS Passover

Visibility (miles)

9
9
9
9
9
9
4
4
3
5
3
5
2
6
4
5
8
7
6
8
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
1
2
10
23
41
47
48
49
49
62
60
52
45
43
36
28
36
32
28
19
5
4
13

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
12
14
13
13
14
14
15
16
17
14
13
11
8
8
9
8
7
7
7
7
7
6
5

Dew Point (°C)

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

Relative Humidity (%)

93
93
83
76
67
62
61
61
57
56
73
76
87
93
95
93
93
91
90
91
90
88
87
87

Pressure (mb)

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

Ozone (du)

289
290
292
294
296
297
299
300
299
300
300
302
304
304
305
305
306
308
308
311
313
313
312
312

Monday 22

Waxing Crescent 1%

07:34

19:05

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
00 Good
01 OK
02 OK
03 OK
04 Bad
05 Bad
06 Bad

Sun - Rise: 06:57, Set: 19:06, Transit: 13:01. Moon - Rise: 07:34, Set: 19:05. Civil Dark: 19:40 - 06:24. Nautical Dark: 20:20 - 05:44. Astro Dark: 21:02 - 05:02

Total Clouds (% Sky Obscured)

59
50
43
46
53
58
59
59
55
61
63
65
75
75
76
54
32
13
21
30
38
41
43
46

Low Clouds (% Sky Obscured)

34
36
39
42
49
55
50
48
45
42
39
36
53
55
56
38
19
0
9
18
27
27
26
26

Medium Clouds (% Sky Obscured)

53
35
41
34
46
47
3
3
1
10
15
22
9
6
6
6
6
4
6
8
9
8
4
3

High Clouds (% Sky Obscured)

0
0
0
0
0
1
17
19
40
40
35
18
24
12
0
0
0
0
0
0
0
6
15
25

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 (%)

6
7
3
0
7
3
1
2
0
0
0
0
2
4
7
6
4
1
3
3
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)

12
12
12
12
12
12
12
12
12
11
10
8
7
6
6
6
5
5
5
5
5
5
5
5

Chance of Frost

Temperature (°C)

10
10
11
12
13
14
14
15
15
15
14
14
13
12
11
11
10
8
7
7
6
6
6
5

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
84
80
76
66
61
64
63
59
57
58
59
60
62
63
64
69
75
84
85
87
88
88
88

Pressure (mb)

1018
1019
1019
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1022
1023
1023
1023
1023
1023
1023
1022
1022
1022
1022

Ozone (du)

311
310
308
308
309
309
309
309
310
310
311
312
314
316
317
318
317
315
314
313
312
311
310
310

Tuesday 23

Waxing Crescent 3%

08:48

19:14

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
04 Bad
05 Bad
06 Bad

Sun - Rise: 06:59, Set: 19:04, Transit: 13:00. Moon - Rise: 08:48, Set: 19:14. Civil Dark: 19:37 - 06:25. Nautical Dark: 20:17 - 05:45. Astro Dark: 20:59 - 05:04

Total Clouds (% Sky Obscured)

61
76
91
88
85
80
82
72
71
80
89
98
98
99
100
92
85
72
70
71
75
75
73
74

Low Clouds (% Sky Obscured)

28
30
32
37
38
42
28
14
2
25
46
68
60
55
51
57
63
68
70
71
71
70
63
57

Medium Clouds (% Sky Obscured)

2
3
8
20
34
46
42
42
40
50
46
44
29
20
10
15
20
20
20
20
20
20
25
25

High Clouds (% Sky Obscured)

42
59
73
54
40
27
46
66
71
80
75
50
55
50
55
66
71
72
57
41
26
19
12
7

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
Very Light Rain
Light Rain
Light Rain
None
Very Light Rain

Precipitation Probability (%)

1
0
0
2
2
0
1
1
1
9
14
16
18
19
18
34
41
37
44
54
67
61
49
56

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

5
7
8
10
11
13
14
14
15
15
14
13
11
11
11
10
10
9
8
8
7
7
7
7

Feels Like (°C)

4
3
4
4
4
4
5
12
12
12
12
13
13
8
8
8
8
9
9
7
6
6
6
6

Dew Point (°C)

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

Relative Humidity (%)

88
78
70
62
57
53
49
50
49
49
57
67
79
81
81
84
84
85
85
87
88
90
91
91

Pressure (mb)

1022
1022
1022
1023
1022
1022
1021
1021
1021
1020
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

309
309
309
309
310
310
311
311
312
312
311
310
309
308
307
307
306
306
305
304
303
302
301
300

Wednesday 24

Waxing Crescent 7%

10:01

19:26

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

Sun - Rise: N/A, Set: 19:01, Transit: 13:00. Moon - Rise: 10:01, Set: 19:26. Civil Dark: 19:35 - 06:27. Nautical Dark: 20:15 - 05:47. Astro Dark: 20:56 - 05:06

Total Clouds (% Sky Obscured)

75
77
87
87
87
82
67
47
12
8
9
9
8
6
15
17
23
34

Low Clouds (% Sky Obscured)

59
61
62
62
62
61
49
35
12
8
9
9
8
6
4
8
12
14

Medium Clouds (% Sky Obscured)

29
28
41
45
45
45
38
32
12
8
9
9
8
6
15
17
20
29

High Clouds (% Sky Obscured)

4
3
2
1
2
1
1
0
0
8
9
9
8
6
15
17
23
12

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

52
45
32
37
35
26
21
16
11
10
8
3
8
12
18
27
33
36

Precipitation Amount (mm)

0.3
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
6
5
5
5
4
4
4
4
4
4
4
5
4
3

Chance of Frost

Temperature (°C)

6
8
9
11
12
13
13
14
14
15
14
13
12
11
10
9
9
8

Feels Like (°C)

6
5
5
6
6
7
7
14
14
14
15
15
16
11
10
10
10
9

Dew Point (°C)

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

Relative Humidity (%)

93
84
77
69
62
56
50
49
46
45
49
55
61
63
65
67
69
71

Pressure (mb)

1021
1021
1022
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

299
298
298
297
297
297
297
297
298
298
297
296
295
295
296
296
295
294

Forecast for Northwick, Worcestershire, United Kingdom (52.21,-2.22)

Generated: 18/09/25 07:23:48. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+1.00