Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 13

Waning Gibbous 64%

21:22

14:54

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
00 Bad
01 OK
02 OK

Sun - Rise: 06:37, Set: 19:25, Transit: 13:01. Moon - Rise: 21:22, Set: 14:54. Civil Dark: 20:00 - 06:02. Nautical Dark: 20:42 - 05:20. Astro Dark: 21:27 - 04:34

Total Clouds (% Sky Obscured)

86
90
93
100
98
100
97
96
60
61
79
73
98
86
97
100
100
62
74
75
84
100
28
12

Low Clouds (% Sky Obscured)

60
72
75
82
59
49
35
47
38
44
55
36
38
38
46
22
0
0
6
12
14
25
26
12

Medium Clouds (% Sky Obscured)

54
90
93
24
50
62
89
75
56
41
51
67
58
47
44
22
68
62
3
51
76
100
11
0

High Clouds (% Sky Obscured)

86
90
93
100
98
94
95
94
55
55
62
55
98
63
94
100
100
62
34
21
22
98
0
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

49
95
37
5
0
0
1
7
31
41
37
38
56
55
54
10
2
5
1
0
1
0
0
0

Precipitation Amount (mm)

0
0.7
0
0
0
0
0
0
0
0
0
0
0.2
0
0.2
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
95
93
91
93
90
84
79
69
60
56
62
58
63
70
75
82
89
90
91
91
90
88
90

Pressure (mb)

1005
1005
1005
1005
1005
1005
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1007
1008
1008
1008
1008
1009
1009

Ozone (du)

300
301
303
304
303
305
306
307
308
309
309
309
309
308
308
308
309
309
308
308
307
306
305
299

Sunday 14

Third Quarter 52%

22:14

16:11

03 OK
04 OK
05 OK
06 OK
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

Sun - Rise: 06:39, Set: 19:22, Transit: 13:00. Moon - Rise: 22:14, Set: 16:11. Civil Dark: 19:57 - 06:04. Nautical Dark: 20:39 - 05:22. Astro Dark: 21:24 - 04:37

Total Clouds (% Sky Obscured)

14
17
24
21
72
96
100
100
100
99
100
100
100
100
95
100
92
65
49
49
55
57
63
65

Low Clouds (% Sky Obscured)

14
17
24
17
9
8
34
28
4
34
43
53
55
71
83
100
86
65
49
47
50
57
59
63

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
61
92
100
95
100
100
100
100
89
85
36
0
0
0
6
0
0
0

High Clouds (% Sky Obscured)

0
1
6
7
58
96
100
100
100
94
100
100
100
100
72
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
3
9
2
2
3
6
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
Light Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
None
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
3
10
94
91
95
95
95
71
72
13
3
0
0
3
5

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.8
0.5
1.7
3.1
0.9
0
0.2
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
8
6
5
5
5
5
8
10
11
13
14
12
13
15
14
17
16
18
18
18
19
19
20

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
91
93
95
91
83
76
75
68
67
57
86
90
93
96
96
98
84
89
89
86
86
83

Pressure (mb)

1010
1010
1010
1010
1011
1011
1011
1010
1010
1009
1008
1008
1006
1004
1002
1000
998
997
996
996
996
996
996
995

Ozone (du)

289
283
282
279
274
271
269
267
265
261
259
258
258
257
256
261
270
275
277
280
280
282
286
285

Monday 15

Waning Crescent 41%

23:25

17:07

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
00 Bad
01 Bad
02 Bad

Sun - Rise: 06:40, Set: 19:20, Transit: 13:00. Moon - Rise: 23:25, Set: 17:07. Civil Dark: 19:55 - 06:05. Nautical Dark: 20:37 - 05:23. Astro Dark: 21:22 - 04:39

Total Clouds (% Sky Obscured)

66
66
64
95
69
70
63
66
55
81
90
80
80
85
77
94
90
87
87
91
93
95
91
67

Low Clouds (% Sky Obscured)

62
62
59
88
62
60
57
52
41
51
56
55
51
62
56
80
77
72
72
75
82
85
85
67

Medium Clouds (% Sky Obscured)

0
0
21
35
20
4
0
54
3
34
45
33
52
32
26
56
43
32
17
24
30
33
36
42

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
32
13
49
37
35
35
32
27
30
2
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
8
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 (%)

10
15
11
21
17
12
28
28
11
14
12
30
38
25
12
33
24
24
16
21
17
4
27
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)

20
21
21
20
22
22
22
22
23
24
23
22
23
21
20
19
18
17
17
17
17
17
16
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
82
82
84
79
79
75
76
82
79
76
70
61
58
57
62
69
71
71
70
71
71
73
76

Pressure (mb)

995
995
995
995
996
997
997
998
999
999
1000
1000
1001
1001
1002
1002
1003
1004
1005
1006
1006
1007
1007
1008

Ozone (du)

289
291
292
293
295
297
301
302
301
300
301
304
303
301
302
304
306
307
308
308
309
308
306
306

Tuesday 16

Waning Crescent 30%

00:48

17:44

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
00 Bad
01 Bad
02 Bad

Sun - Rise: 06:42, Set: 19:18, Transit: 13:00. Moon - Rise: 00:48, Set: 17:44. Civil Dark: 19:52 - 06:07. Nautical Dark: 20:34 - 05:25. Astro Dark: 21:19 - 04:41

Total Clouds (% Sky Obscured)

97
96
95
94
89
43
58
54
44
72
86
95
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

91
91
91
91
80
43
49
49
44
57
61
68
51
18
15
10
8
5
2
8
28
28
49
67

Medium Clouds (% Sky Obscured)

48
51
47
46
35
24
12
8
3
0
0
0
0
17
35
78
87
86
87
93
97
100
100
70

High Clouds (% Sky Obscured)

0
0
0
1
1
0
0
0
2
21
58
82
100
100
100
100
100
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
Very Light Rain
Very Light Rain
None
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Light Rain

Precipitation Probability (%)

52
59
56
44
50
42
11
24
29
16
17
19
6
4
8
0
0
0
0
16
30
34
64
90

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
76
75
75
75
72
75
68
60
56
55
52
52
51
56
60
65
70
72
76
80
89
93
93

Pressure (mb)

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

Ozone (du)

303
302
302
301
302
304
306
304
298
292
290
288
285
283
281
279
276
274
272
273
270
270
270
272

Wednesday 17

Waning Crescent 20%

02:14

18:07

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
00 Bad
01 Bad
02 Bad

Sun - Rise: 06:44, Set: 19:15, Transit: 12:59. Moon - Rise: 02:14, Set: 18:07. Civil Dark: 19:50 - 06:09. Nautical Dark: 20:32 - 05:27. Astro Dark: 21:16 - 04:43

Total Clouds (% Sky Obscured)

100
100
100
100
99
98
97
92
89
84
88
91
100
99
99
99
99
96
85
83
85
90
90
88

Low Clouds (% Sky Obscured)

85
85
86
88
82
77
71
67
63
57
65
73
81
79
77
75
69
67
65
65
68
70
71
72

Medium Clouds (% Sky Obscured)

100
100
100
45
45
38
27
16
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
93
85
59
59
44
24
46
72
99
99
99
98
93
82
75
74
74
73
58
43

ISS Passover

Visibility (miles)

9
3
0
1
3
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

Light Rain
Light Rain
Moderate Rain
Moderate Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
95
95
95
95
95
81
4
9
9
2
5
7
3
8
8
4
7
8
6
10
11

Precipitation Amount (mm)

0.8
1.9
2.6
3.2
2.7
2.1
1.3
1
0.5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
10
11
13
14
14
16
18
19
21
22
22
22
23
22
22
21
21
21
21
21
21
20
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
95
96
98
96
93
85
83
82
82
71
68
64
62
64
66
67
68
69
71
73
72
72
75

Pressure (mb)

1010
1009
1006
1004
1002
1001
1000
1000
999
999
999
1000
1000
1000
1001
1002
1002
1003
1004
1005
1005
1006
1007
1008

Ozone (du)

272
271
272
273
275
275
275
274
275
276
276
276
276
276
278
280
282
283
285
286
290
294
298
298

Thursday 18

Waning Crescent 12%

No Rise

18:23

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

Sun - Rise: 06:45, Set: 19:13, Transit: 12:59. Moon - Rise: No Rise, Set: 18:23. Civil Dark: 19:47 - 06:11. Nautical Dark: 20:29 - 05:29. Astro Dark: 21:13 - 04:45

Total Clouds (% Sky Obscured)

82
83
89
97
83
71
59
62
65
66
73
83
97
76
55
34
38
40
41
59
72
82
72
80

Low Clouds (% Sky Obscured)

73
67
59
53
56
56
54
58
59
60
57
54
51
44
38
33
32
32
32
36
36
38
40
44

Medium 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
18
35

High Clouds (% Sky Obscured)

27
43
63
80
57
27
0
0
0
0
25
50
80
56
32
10
13
22
29
50
54
55
47
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 (%)

4
10
12
11
16
18
15
28
31
28
36
41
38
36
31
16
15
13
0
0
0
0
10
23

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)

16
14
13
13
12
12
12
13
12
12
12
11
11
10
8
6
4
3
3
3
3
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
77
77
80
81
81
81
81
82
80
79
77
74
69
75
80
86
87
90
93
93
93
91
93

Pressure (mb)

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

Ozone (du)

297
297
297
297
297
295
294
293
292
290
289
286
284
282
281
281
280
280
279
279
278
277
277
277

Friday 19

Waning Crescent 6%

03:39

18:35

Sun - Rise: 06:47, Set: 19:10, Transit: 12:59. Moon - Rise: 03:39, Set: 18:35. Civil Dark: 19:45 - 06:13. Nautical Dark: 20:26 - 05:31. Astro Dark: 21:10 - 04:47

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Chesterfield, Derbyshire, United Kingdom (53.24,-1.42)

Generated: 13/09/25 03:14:45. Forecast: 13/09/25 to 19/09/25. Timezone: UTC+1.00