Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 19

Waning Crescent 6%

04:56

18:24

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

Sun - Rise: 06:41, Set: 19:03, Transit: 12:52. Moon - Rise: 04:56, Set: 18:24. Civil Dark: 19:36 - 06:08. Nautical Dark: 20:16 - 05:28. Astro Dark: 20:57 - 04:49

Total Clouds (% Sky Obscured)

44
32
31
36
48
41
33
26
18
100
100
9
28
5
0
10
2
12
16
44
58
100
100
66

Low Clouds (% Sky Obscured)

44
30
26
28
36
32
16
10
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

7
0
0
0
0
0
0
2
0
0
3
3
10
0
0
6
0
3
16
44
58
56
74
66

High Clouds (% Sky Obscured)

33
32
31
36
17
41
26
13
18
67
60
9
28
5
0
2
2
12
16
20
58
78
93
43

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)

6
5
4
4
7
8
9
11
11
12
12
11
11
8
6
5
4
4
4
3
3
2
2
4

Chance of Frost

Temperature (°C)

15
15
15
16
18
19
21
23
24
25
25
25
24
22
21
19
18
17
17
17
16
16
15
15

Feels Like (°C)

15
15
15
17
18
20
20
21
22
22
23
23
22
20
19
18
19
17
17
16
15
15
15
14

Dew Point (°C)

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

Relative Humidity (%)

87
89
90
86
78
67
55
42
34
31
29
30
33
39
46
49
52
52
52
51
50
50
52
52

Pressure (mb)

1020
1020
1020
1020
1020
1019
1019
1018
1018
1017
1016
1016
1016
1015
1015
1015
1015
1015
1015
1014
1014
1013
1012
1012

Ozone (du)

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

Saturday 20

Waning Crescent 2%

04:56

18:35

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 OK
01 OK
02 Bad
03 OK
04 OK

Sun - Rise: 06:43, Set: 19:01, Transit: 12:52. Moon - Rise: 04:56, Set: 18:35. Civil Dark: 19:34 - 06:10. Nautical Dark: 20:13 - 05:30. Astro Dark: 20:55 - 04:51

Total Clouds (% Sky Obscured)

100
93
100
100
100
100
82
76
93
92
100
100
100
92
100
97
56
59
45
24
25
45
39
39

Low Clouds (% Sky Obscured)

0
0
0
23
48
51
59
53
77
48
45
58
64
60
61
71
56
55
45
24
25
43
39
39

Medium Clouds (% Sky Obscured)

88
58
79
67
90
41
20
63
23
24
80
99
100
55
55
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

98
84
100
100
100
100
40
57
61
50
94
96
98
61
85
80
0
0
0
0
0
0
1
1

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
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
8
8
1
12
72
52
4
2
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

4
5
5
5
7
6
10
12
12
15
15
17
13
19
17
17
17
17
15
14
13
11
7
5

Chance of Frost

Temperature (°C)

15
15
15
16
18
18
19
20
21
22
21
20
20
19
18
17
17
16
14
13
12
12
11
11

Feels Like (°C)

14
14
13
15
16
18
17
18
18
18
18
16
17
15
14
14
13
13
10
10
10
10
10
11

Dew Point (°C)

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

Relative Humidity (%)

53
55
58
61
64
70
61
51
44
38
40
45
57
63
71
77
69
70
66
66
69
73
73
71

Pressure (mb)

1011
1011
1011
1011
1011
1011
1011
1010
1010
1009
1009
1008
1008
1008
1007
1008
1009
1010
1011
1011
1012
1013
1014
1015

Ozone (du)

262
262
262
261
261
261
261
262
262
263
265
266
266
267
273
276
277
279
280
281
283
286
288
289

Sunday 21

New Moon 0%

06:10

18:46

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

Sun - Rise: 06:44, Set: 18:58, Transit: 12:51. Moon - Rise: 06:10, Set: 18:46. Civil Dark: 19:32 - 06:11. Nautical Dark: 20:11 - 05:32. Astro Dark: 20:52 - 04:53

Total Clouds (% Sky Obscured)

30
45
47
58
69
88
94
91
88
84
92
85
61
64
36
26
56
58
39
33
41
53
52
35

Low Clouds (% Sky Obscured)

28
45
45
51
69
88
82
64
64
61
65
55
33
24
1
3
37
42
35
33
41
46
46
35

Medium Clouds (% Sky Obscured)

0
0
6
14
17
18
23
23
27
72
91
71
21
22
25
12
5
4
3
0
0
3
2
4

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
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 (%)

0
0
0
0
0
0
3
0
0
1
2
0
0
1
0
2
0
4
0
0
1
1
1
3

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
5
6
6
6
6
8
9
10
9
9
10
10
10
10
10
9
10
10
10
10
9
9
9

Chance of Frost

Temperature (°C)

11
11
10
11
12
13
14
14
14
14
15
15
14
14
13
12
11
11
11
10
10
10
9
9

Feels Like (°C)

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

Dew Point (°C)

6
5
5
5
5
5
5
5
4
3
2
2
1
0
0
3
4
4
4
4
4
4
3
2

Relative Humidity (%)

71
68
71
68
63
59
55
54
50
45
42
40
39
38
40
54
63
61
64
67
66
66
64
61

Pressure (mb)

1015
1016
1017
1018
1018
1019
1019
1020
1020
1020
1020
1020
1021
1021
1022
1023
1024
1024
1025
1025
1025
1025
1025
1025

Ozone (du)

289
290
292
294
295
297
298
298
299
302
304
305
305
306
308
311
311
312
313
314
315
315
315
315

Monday 22

Waxing Crescent 1%

07:23

18:56

05 OK
06 OK
07 OK
08 OK
09 OK
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

Sun - Rise: 06:46, Set: 18:56, Transit: 12:51. Moon - Rise: 07:23, Set: 18:56. Civil Dark: 19:29 - 06:13. Nautical Dark: 20:09 - 05:34. Astro Dark: 20:49 - 04:55

Total Clouds (% Sky Obscured)

37
37
42
44
40
41
47
62
87
93
91
90
78
64
62
56
52
58
63
69
92
71
96
96

Low Clouds (% Sky Obscured)

37
35
42
44
40
41
47
50
51
45
42
46
46
48
33
21
9
29
48
65
73
54
76
77

Medium Clouds (% Sky Obscured)

7
11
8
4
0
8
16
22
16
9
5
2
1
0
9
20
29
42
53
55
53
50
48
44

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
28
53
75
50
25
0
3
6
8
32
63
69
53
25
0
27

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
6
3
1
8
6
4
5
3
1
5
3
10
8
6
2
16
11
5
26
36
42
40

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

Chance of Frost

Temperature (°C)

9
9
9
10
11
13
14
15
16
16
16
16
15
14
14
13
12
11
11
11
10
10
10
11

Feels Like (°C)

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

Dew Point (°C)

2
2
3
5
4
3
2
1
1
-1
-2
-1
-0
1
1
2
3
4
5
4
5
4
5
4

Relative Humidity (%)

60
63
68
69
62
52
44
39
36
32
30
30
34
40
41
47
55
61
65
65
67
66
67
65

Pressure (mb)

1025
1026
1026
1027
1027
1028
1027
1027
1027
1027
1027
1026
1026
1027
1027
1027
1027
1027
1027
1026
1026
1026
1025
1025

Ozone (du)

317
319
321
322
322
321
321
319
318
318
318
318
317
316
315
314
313
312
311
311
312
314
316
317

Tuesday 23

Waxing Crescent 3%

08:36

19:06

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
04 Bad

Sun - Rise: 06:48, Set: 18:54, Transit: 12:51. Moon - Rise: 08:36, Set: 19:06. Civil Dark: 19:27 - 06:14. Nautical Dark: 20:06 - 05:35. Astro Dark: 20:47 - 04:56

Total Clouds (% Sky Obscured)

93
85
86
92
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

72
63
73
88
95
80
66
54
51
49
47
52
57
62
55
63
70
65
60
56
59
63
67
76

Medium Clouds (% Sky Obscured)

45
50
66
69
82
96
91
100
100
100
58
100
100
100
100
100
99
94
88
83
71
59
50
67

High Clouds (% Sky Obscured)

53
75
80
81
100
100
100
100
100
85
100
100
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
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
Very Light Rain
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

34
31
52
69
81
95
95
95
95
95
95
95
90
74
52
59
62
61
53
36
46
48
43
54

Precipitation Amount (mm)

0
0
0.2
0.4
0.6
1
1.7
2.7
1.9
1.1
0.4
0.5
0.4
0.2
0
0
0.3
0.2
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
71
73
71
65
61
55
48
49
51
51
53
56
56
59
63
68
72
76
79
83
83
81
80

Pressure (mb)

1024
1024
1024
1024
1024
1023
1023
1023
1022
1022
1022
1021
1021
1021
1021
1023
1023
1023
1023
1023
1022
1022
1022
1022

Ozone (du)

317
316
315
315
314
314
315
316
315
317
312
309
309
309
307
307
307
307
306
305
304
304
304
305

Wednesday 24

Waxing Crescent 7%

09:48

19:19

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
04 Bad

Sun - Rise: 06:49, Set: 18:52, Transit: 12:50. Moon - Rise: 09:48, Set: 19:19. Civil Dark: 19:25 - 06:16. Nautical Dark: 20:04 - 05:37. Astro Dark: 20:44 - 04:58

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
97
96
95
94
92
95
97
100
92

Low Clouds (% Sky Obscured)

86
96
98
98
99
99
99
99
94
88
82
84
88
93
62
31
0
13
27
40
37
33
29
27

Medium Clouds (% Sky Obscured)

84
100
100
100
100
100
100
100
99
97
94
96
96
100
96
92
87
85
83
82
84
88
93
90

High Clouds (% Sky Obscured)

100
100
100
100
100
79
52
28
46
75
100
100
100
100
80
60
45
57
70
77
85
93
100
72

ISS Passover

Visibility (miles)

9
9
9
9
8
8
8
7
7
8
9
9
9
9
9
9
9
9
8
8
7
8
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
Very Light Rain
Very Light Rain
None
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
Light Rain
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

61
66
67
62
53
61
69
79
73
62
59
68
67
61
41
43
66
60
51
40
36
35
34
29

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

8
8
8
9
10
10
10
9
8
8
7
7
6
5
4
3
3
3
3
4
4
3
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
9
9
9
9
9
9
10
10
10
10
10
10
10
10
10
10
10
10
10
10
9
10
9

Relative Humidity (%)

81
81
81
80
79
77
79
79
79
79
80
80
79
80
80
80
83
84
86
87
88
87
88
88

Pressure (mb)

1022
1022
1021
1021
1022
1022
1021
1021
1021
1021
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019
1019

Ozone (du)

305
305
305
305
305
305
305
305
305
305
305
305
305
304
304
304
304
304
304
303
303
303
303
303

Thursday 25

Waxing Crescent 13%

11:02

19:34

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: 06:51, Set: 18:49, Transit: 12:50. Moon - Rise: 11:02, Set: 19:34. Civil Dark: 19:22 - 06:18. Nautical Dark: 20:01 - 05:39. Astro Dark: 20:42 - N/A

Total Clouds (% Sky Obscured)

82
74
82
88
96
98
99
100
100
100
100
100
100
100
98
94
89
93
96
100

Low Clouds (% Sky Obscured)

25
23
29
35
43
60
71
80
76
74
72
67
65
66
67
69
67
67
67
63

Medium Clouds (% Sky Obscured)

82
74
82
87
88
88
87
87
75
62
50
34
19
3
4
6
9
26
44
55

High Clouds (% Sky Obscured)

42
19
26
32
34
46
74
100
97
95
93
91
90
92
81
67
54
65
76
86

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

24
16
20
20
15
30
30
25
33
41
45
49
45
34
29
22
5
15
15
8

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
87
87
87
89
82
75
68
67
65
64
66
67
69
71
72
75
79
80

Pressure (mb)

1019
1019
1018
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1018
1018
1018
1018
1018
1018
1018

Ozone (du)

304
304
305
304
304
304
303
302
302
302
302
302
301
300
299
299
299
299
298
298

Forecast for Sutton at Hone, Kent, United Kingdom (51.41,0.23)

Generated: 19/09/25 05:20:09. Forecast: 19/09/25 to 25/09/25. Timezone: UTC+1.00