Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 16

Waning Crescent 30%

No Rise

17:25

00 Bad
01 Bad
02 Bad
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

Sun - Rise: 06:38, Set: 19:11, Transit: 12:55. Moon - Rise: No Rise, Set: 17:25. Civil Dark: 19:45 - 06:05. Nautical Dark: 20:24 - 05:25. Astro Dark: 21:06 - 04:44

Total Clouds (% Sky Obscured)

72
68
65
61
48
51
55
55
60
98
64
72
100
100
100
100
100
100
100
100
99
100
100
100

Low Clouds (% Sky Obscured)

46
44
53
50
48
51
55
55
34
41
61
66
64
51
52
24
4
37
6
4
0
0
0
32

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
3
73
43
29
30
33
30
94
58
51
63
99

High Clouds (% Sky Obscured)

0
0
0
2
0
4
4
0
19
36
16
28
100
100
100
99
100
96
100
88
61
72
100
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
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
Very Light Rain

Precipitation Probability (%)

0
0
0
1
6
4
13
12
4
10
2
2
2
0
2
4
3
15
5
6
10
16
30
60

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
0.3

Wind Speed/Direction (mph)

17
17
18
17
17
17
16
14
13
14
17
17
18
18
17
15
14
13
11
8
7
6
6
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
70
69
74
79
76
73
76
77
73
60
54
51
52
54
56
56
63
65
74
78
80
82
83

Pressure (mb)

1013
1014
1014
1015
1015
1016
1016
1017
1017
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1020
1020
1020
1020

Ozone (du)

309
305
303
302
301
300
302
302
301
299
296
292
289
284
280
279
278
276
273
270
266
262
259
257

Wednesday 17

Waning Crescent 20%

00:56

17:52

00 Bad
01 Bad
02 Bad
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

Sun - Rise: 06:40, Set: 19:09, Transit: 12:54. Moon - Rise: 00:56, Set: 17:52. Civil Dark: 19:42 - 06:07. Nautical Dark: 20:22 - 05:27. Astro Dark: 21:03 - 04:46

Total Clouds (% Sky Obscured)

100
100
100
100
98
99
97
99
100
98
100
100
100
100
100
81
70
80
83
69
78
72
68
69

Low Clouds (% Sky Obscured)

91
70
67
85
75
97
91
86
100
86
100
100
100
100
100
80
68
67
68
54
65
60
54
58

Medium Clouds (% Sky Obscured)

76
95
98
100
98
94
81
79
82
95
98
61
56
57
21
9
0
21
20
14
17
9
12
9

High Clouds (% Sky Obscured)

89
100
100
94
24
5
0
1
2
0
0
0
0
0
0
2
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
7
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

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

Precipitation Probability (%)

66
68
56
80
53
50
49
37
31
8
10
1
0
0
0
2
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.3
0.3
0
0.4
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
6
8
7
8
12
13
16
18
18
20
19
19
19
18
18
18
18
17
16
14
14
13
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
84
90
90
90
87
89
87
87
86
85
85
86
86
82
81
81
82
83
86
86
86
92
93

Pressure (mb)

1019
1019
1019
1018
1018
1017
1016
1016
1016
1016
1016
1016
1015
1016
1016
1015
1015
1015
1016
1016
1016
1017
1017
1017

Ozone (du)

256
255
253
252
252
251
251
252
252
253
254
256
257
258
260
260
262
260
261
260
260
260
260
260

Thursday 18

Waning Crescent 12%

02:19

18:11

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

Sun - Rise: 06:41, Set: 19:07, Transit: 12:54. Moon - Rise: 02:19, Set: 18:11. Civil Dark: 19:40 - 06:08. Nautical Dark: 20:19 - 05:29. Astro Dark: 21:01 - 04:48

Total Clouds (% Sky Obscured)

75
78
55
64
71
95
71
94
84
68
80
71
78
53
72
67
49
42
38
54
76
96
96
100

Low Clouds (% Sky Obscured)

60
56
46
37
42
90
58
87
83
63
78
68
76
53
72
67
49
42
33
39
44
50
53
55

Medium Clouds (% Sky Obscured)

10
16
4
11
11
7
6
4
0
0
0
0
0
0
0
4
3
1
5
6
5
5
4
4

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
29
55
82
88
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
2
3
3
3
3
12
0
2
0
1
1
4
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)

12
12
12
12
11
11
11
11
10
13
15
15
17
17
18
18
17
15
12
9
7
6
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
82
85
82
86
90
92
89
89
90
85
82
78
72
68
67
69
72
80
88
93
95
95
93

Pressure (mb)

1017
1017
1018
1018
1018
1018
1018
1018
1019
1019
1019
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

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

Friday 19

Waning Crescent 6%

03:40

18:25

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

Sun - Rise: 06:43, Set: 19:05, Transit: 12:54. Moon - Rise: 03:40, Set: 18:25. Civil Dark: 19:38 - 06:10. Nautical Dark: 20:17 - 05:31. Astro Dark: 20:58 - 04:50

Total Clouds (% Sky Obscured)

100
100
100
100
85
71
56
62
85
99
89
96
95
85
62
51
59
42
50
44
55
55
65
67

Low Clouds (% Sky Obscured)

58
66
73
81
72
63
54
45
38
27
18
9
0
10
19
29
35
33
34
30
26
24
24
24

Medium Clouds (% Sky Obscured)

3
2
15
20
14
1
11
2
2
3
3
3
2
3
2
0
0
1
1
10
19
29
17
8

High Clouds (% Sky Obscured)

100
100
100
100
68
37
4
30
66
97
88
93
89
77
43
30
36
11
14
5
14
7
28
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
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)

4
4
4
4
4
4
4
4
5
8
9
10
10
11
11
11
12
11
9
8
7
6
5
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
93
93
93
92
92
90
83
73
61
50
47
44
45
46
50
57
67
77
87
92
93
93

Pressure (mb)

1020
1020
1020
1019
1019
1018
1018
1018
1017
1017
1017
1017
1016
1016
1016
1016
1015
1015
1015
1015
1016
1016
1016
1016

Ozone (du)

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

Saturday 20

Waning Crescent 2%

04:58

18:37

00 Bad
01 Bad
02 Bad
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

Sun - Rise: 06:45, Set: 19:02, Transit: 12:53. Moon - Rise: 04:58, Set: 18:37. Civil Dark: 19:35 - 06:12. Nautical Dark: 20:14 - 05:32. Astro Dark: 20:55 - 04:51

Total Clouds (% Sky Obscured)

78
86
93
100
100
100
100
100
99
99
99
100
100
100
99
99
98
92
82
70
58
49
62
78

Low Clouds (% Sky Obscured)

27
34
38
41
40
38
37
27
16
6
17
30
37
57
77
97
83
69
54
52
49
44
42
37

Medium Clouds (% Sky Obscured)

4
6
14
19
73
29
39
46
49
72
73
69
62
58
54
61
68
70
70
50
26
6
6
8

High Clouds (% Sky Obscured)

53
61
72
100
98
85
100
99
98
98
98
99
100
72
48
25
34
36
31
27
21
21
26
29

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
7
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
1
5
8
19
12
16
17
14
18
43
25
30
31
29
23
16
15
17
13
2
11
15

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
95
98
98
96
96
89
83
81
72
70
73
79
78
77
74
72
74
77
78
80
82
82
86

Pressure (mb)

1015
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014

Ozone (du)

264
265
266
267
267
267
268
269
269
270
270
270
269
270
272
273
275
278
281
284
287
290
293
296

Sunday 21

New Moon 0%

06:12

18:47

00 Bad
01 Bad
02 Bad
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

Sun - Rise: 06:46, Set: 19:00, Transit: 12:53. Moon - Rise: 06:12, Set: 18:47. Civil Dark: 19:33 - 06:13. Nautical Dark: 20:12 - 05:34. Astro Dark: 20:53 - 04:53

Total Clouds (% Sky Obscured)

89
92
96
95
96
96
96
96
86
80
86
92
98
93
87
82
69
53
36
32
31
31
46
60

Low Clouds (% Sky Obscured)

31
38
45
49
52
58
59
47
39
32
39
43
47
47
53
58
49
39
29
27
25
23
37
51

Medium Clouds (% Sky Obscured)

10
10
15
25
30
25
20
10
5
5
0
0
4
10
14
11
15
19
25
32
31
31
46
55

High Clouds (% Sky Obscured)

31
36
47
60
65
75
80
95
86
80
86
92
90
70
45
21
14
7
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
4
2
2
3
4
5

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

Precipitation Probability (%)

14
41
51
55
53
48
48
45
40
31
25
22
20
26
30
30
43
60
74
69
83
95
91
63

Precipitation Amount (mm)

0
0
0
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.3
0.5
1.3
0.8
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
91
93
95
96
91
87
84
77
71
65
68
72
77
79
80
83
86
89
92
92
90
90
90

Pressure (mb)

1014
1014
1014
1013
1013
1013
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1016
1016
1017
1017
1017
1018
1018

Ozone (du)

299
303
305
308
310
312
313
315
318
320
323
323
322
322
322
323
323
325
326
327
329
330
332
333

Monday 22

Waxing Crescent 1%

07:25

18:58

Sun - Rise: 06:48, Set: 18:58, Transit: 12:53. Moon - Rise: 07:25, Set: 18:58. Civil Dark: 19:31 - 06:15. Nautical Dark: 20:10 - 05:36. Astro Dark: 20:50 - 04:55

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 Southgate, West Sussex, United Kingdom (51.11,-0.19)

Generated: 16/09/25 00:39:56. Forecast: 16/09/25 to 22/09/25. Timezone: UTC+1.00