Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 12%

03:38

18:24

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: 06:46, Set: 19:13, Transit: 12:59. Moon - Rise: 03:38, Set: 18:24. Civil Dark: 19:48 - 06:11. Nautical Dark: 20:29 - 05:29. Astro Dark: 21:14 - 04:45

Total Clouds (% Sky Obscured)

76
80
86
85
100
86
77
91
94
89
91
57
75
84
86
81
78
87
85
86
82
86
83
98

Low Clouds (% Sky Obscured)

24
26
21
31
30
39
51
86
89
80
83
42
59
68
67
73
54
52
54
49
53
51
52
46

Medium Clouds (% Sky Obscured)

39
80
62
55
31
31
57
50
29
23
26
22
35
57
32
27
44
58
48
46
41
53
41
93

High Clouds (% Sky Obscured)

76
64
62
75
99
75
40
45
36
55
45
32
45
15
54
9
5
32
30
13
30
56
29
91

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
3
2
5
7
4
3
5
6
5
19
3
0
0
1
0
0
0
8
7
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
83
84
83
79
76
72
75
87
88
84
86
86
84
78
81
80
78
79
78
82
85
85
85

Pressure (mb)

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

Ozone (du)

258
259
259
261
260
258
257
257
257
259
258
256
257
258
259
259
260
258
257
255
256
256
258
257

Friday 19

Waning Crescent 6%

No Rise

18:35

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: 06:47, Set: 19:10, Transit: 12:59. Moon - Rise: No Rise, Set: 18:35. Civil Dark: 19:45 - 06:13. Nautical Dark: 20:27 - 05:31. Astro Dark: 21:11 - 04:47

Total Clouds (% Sky Obscured)

100
100
100
100
98
72
70
69
78
71
59
78
97
99
97
81
98
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

50
53
51
52
51
46
58
61
67
59
59
54
56
46
37
36
40
34
26
6
10
10
41
53

Medium Clouds (% Sky Obscured)

41
76
65
74
37
6
35
3
7
14
2
12
32
10
18
57
10
65
84
49
35
78
81
20

High Clouds (% Sky Obscured)

100
100
100
100
95
70
44
35
27
3
7
40
76
83
72
18
88
100
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 (%)

0
0
0
0
1
0
1
6
9
10
9
14
2
1
2
0
0
0
0
0
0
0
2
4

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)

13
13
13
12
12
12
12
12
13
14
15
13
12
10
7
6
5
4
2
2
2
2
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

14
14
13
14
14
14
14
14
13
14
13
13
13
13
14
14
14
14
13
13
13
13
13
13

Relative Humidity (%)

83
83
83
86
85
82
78
72
65
63
59
57
57
62
67
78
86
87
87
87
89
89
89
89

Pressure (mb)

1015
1015
1015
1015
1016
1016
1016
1016
1015
1015
1015
1014
1014
1014
1014
1014
1014
1015
1014
1014
1014
1013
1013
1012

Ozone (du)

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

Saturday 20

Waning Crescent 2%

04:59

18:45

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 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad

Sun - Rise: 06:49, Set: 19:08, Transit: 12:59. Moon - Rise: 04:59, Set: 18:45. Civil Dark: 19:43 - 06:14. Nautical Dark: 20:24 - 05:33. Astro Dark: 21:08 - 04:49

Total Clouds (% Sky Obscured)

100
100
100
98
100
100
100
100
100
97
100
85
70
20
60
58
60
59
53
45
44
56
67
81

Low Clouds (% Sky Obscured)

73
85
75
49
48
55
86
65
55
41
67
69
65
5
46
45
47
46
44
38
41
53
66
81

Medium Clouds (% Sky Obscured)

21
13
40
62
99
82
90
88
48
43
62
58
50
20
29
44
44
35
45
40
35
35
25
25

High Clouds (% Sky Obscured)

100
100
100
94
100
100
100
100
100
89
100
50
44
2
28
50
2
0
0
0
0
0
2
1

ISS Passover

Visibility (miles)

9
9
9
9
9
3
4
9
9
9
9
9
9
9
9
6
4
4
3
9
9
3
2
1

Fog (%)

0
0
0
0
0
8
1
1
0
1
0
0
0
34
63
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

0
3
8
8
8
16
16
6
15
43
23
63
30
9
27
31
26
50
55
39
63
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.4
0
0
0
0
0
0.2
0.2
0
0.3
2.1
0.6
1.2

Wind Speed/Direction (mph)

3
3
4
5
6
7
10
11
11
11
11
12
14
14
15
17
15
16
18
18
19
18
17
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
90
89
89
89
92
86
82
80
79
78
76
78
78
83
87
90
90
91
88
90
90
95
96

Pressure (mb)

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

Ozone (du)

264
265
266
268
268
270
271
270
271
271
272
271
273
273
274
274
275
278
279
278
278
278
279
281

Sunday 21

New Moon 0%

06:16

18:52

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: 06:51, Set: 19:06, Transit: 12:58. Moon - Rise: 06:16, Set: 18:52. Civil Dark: 19:40 - 06:16. Nautical Dark: 20:22 - 05:35. Astro Dark: 21:05 - 04:51

Total Clouds (% Sky Obscured)

87
91
94
94
92
90
89
88
86
91
96
100
98
97
96
96
95
95
94
93
90
86
81
80

Low Clouds (% Sky Obscured)

84
87
90
84
78
73
71
70
69
79
90
100
88
76
65
58
56
52
53
54
54
61
68
74

Medium Clouds (% Sky Obscured)

45
41
57
55
54
45
52
50
49
47
46
43
40
41
44
41
70
52
52
77
76
61
51
39

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
30

ISS Passover

Visibility (miles)

0
0
0
0
0
3
3
3
4
8
7
7
9
8
3
2
3
3
2
4
9
5
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

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

Precipitation Probability (%)

95
95
94
69
56
40
43
35
29
31
26
27
28
32
46
35
25
28
25
16
13
7
1
1

Precipitation Amount (mm)

0.8
1
0.9
0.5
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
96
96
98
96
95
95
95
91
90
90
91
91
93
95
93
95
93
93
91
91
91
90
87

Pressure (mb)

1008
1008
1009
1010
1011
1012
1012
1013
1014
1014
1014
1015
1015
1015
1016
1016
1017
1017
1018
1018
1018
1018
1018
1019

Ozone (du)

282
284
286
288
290
290
293
294
294
295
297
298
298
299
299
302
304
305
306
305
304
303
303
307

Monday 22

Waxing Crescent 1%

07:32

19:00

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 Bad
19 Bad
20 OK
21 OK
22 OK
23 OK
00 Good
01 Good
02 OK
03 OK

Sun - Rise: 06:53, Set: 19:03, Transit: 12:58. Moon - Rise: 07:32, Set: 19:00. Civil Dark: 19:38 - 06:18. Nautical Dark: 20:19 - 05:37. Astro Dark: 21:02 - 04:54

Total Clouds (% Sky Obscured)

81
80
80
74
70
66
67
71
75
68
60
49
49
36
49
47
36
28
24
17
11
15
21
26

Low Clouds (% Sky Obscured)

74
75
75
67
64
57
59
62
68
55
45
34
32
32
36
43
34
25
21
15
9
14
18
22

Medium Clouds (% Sky Obscured)

47
61
48
70
62
4
3
3
3
0
2
2
1
1
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

35
35
40
50
45
7
2
6
2
0
0
0
0
0
0
0
1
1
1
1
1
3
4
6

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
0
2
1
8
0
1
0
1
8
2
11
12
9
2
9
11
12
11
8
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
84
84
85
87
82
76
72
70
62
58
62
61
63
64
64
68
73
79
81
81
81
81
82

Pressure (mb)

1019
1019
1019
1020
1021
1021
1021
1022
1021
1021
1021
1021
1021
1021
1021
1022
1024
1024
1024
1024
1024
1024
1023
1023

Ozone (du)

309
310
311
312
313
314
316
317
318
319
320
320
320
318
316
314
313
312
311
311
310
310
310
310

Tuesday 23

Waxing Crescent 3%

08:47

19:09

04 OK
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: 06:54, Set: 19:01, Transit: 12:57. Moon - Rise: 08:47, Set: 19:09. Civil Dark: 19:35 - 06:20. Nautical Dark: 20:16 - 05:39. Astro Dark: 20:59 - 04:56

Total Clouds (% Sky Obscured)

43
63
83
89
94
99
90
82
75
84
91
98
97
96
93
77
60
44
44
53
55
65
80
86

Low Clouds (% Sky Obscured)

33
44
55
50
47
44
57
67
75
74
69
64
63
60
56
58
59
44
44
53
55
63
61
58

Medium Clouds (% Sky Obscured)

0
1
0
20
41
64
48
35
19
23
28
29
31
32
28
28
32
40
44
45
45
45
45
45

High Clouds (% Sky Obscured)

14
24
41
63
72
80
53
28
1
1
2
3
24
38
60
60
60
44
44
53
55
52
38
24

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 (%)

2
3
0
6
10
11
10
8
4
10
10
4
10
11
11
17
20
22
36
45
49
48
47
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
80
79
78
70
62
56
57
58
59
58
59
59
62
64
66
71
77
81
84
85
88
88
88

Pressure (mb)

1023
1023
1023
1023
1023
1023
1023
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1021

Ozone (du)

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

Wednesday 24

Waxing Crescent 7%

10:02

19:19

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

Sun - Rise: 06:56, Set: 18:58, Transit: 12:57. Moon - Rise: 10:02, Set: 19:19. Civil Dark: 19:33 - 06:21. Nautical Dark: 20:14 - 05:40. Astro Dark: 20:57 - 04:58

Total Clouds (% Sky Obscured)

84
92
96
95
95
90
91
87
70
64
63
53
63
63
64
62
59
61
64
63
87

Low Clouds (% Sky Obscured)

69
76
83
77
67
58
63
71
70
64
55
44
30
26
23
18
13
8
9
8
3

Medium Clouds (% Sky Obscured)

55
45
55
60
59
59
53
52
50
46
42
28
24
15
15
19
23
30
26
19
19

High Clouds (% Sky Obscured)

39
58
82
56
35
13
9
6
3
2
1
0
1
1
1
1
1
1
28
55
87

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

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

Precipitation Probability (%)

48
52
50
43
34
27
42
45
44
35
30
27
30
29
25
23
18
13
9
5
1

Precipitation Amount (mm)

0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
5
5
6
5
5
5
5
5
5
5
5
6
5
5
5
4
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
88
88
81
74
68
61
54
49
47
45
44
51
57
66
69
72
74
74
74

Pressure (mb)

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

Ozone (du)

299
299
298
298
297
297
297
297
297
297
297
297
297
297
297
296
295
294
293
292
292

Forecast for Sheffield, Sheffield, United Kingdom (53.38,-1.47)

Generated: 18/09/25 04:51:55. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+1.00