Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 19

Waning Crescent 6%

03:43

18:28

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

Sun - Rise: 06:46, Set: 19:07, Transit: 12:56. Moon - Rise: 03:43, Set: 18:28. Civil Dark: 19:40 - 06:13. Nautical Dark: 20:20 - 05:33. Astro Dark: 21:01 - 04:52

Total Clouds (% Sky Obscured)

79
82
76
68
61
87
78
48
32
14
54
6
0
2
5
7
58
0
17
47
38
41
40
58

Low Clouds (% Sky Obscured)

79
72
62
55
61
87
78
41
29
10
8
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

6
3
3
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
5
12
15
26
40
18

High Clouds (% Sky Obscured)

64
47
38
28
36
30
7
24
9
5
29
6
0
2
5
7
32
0
2
16
38
23
40
52

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
95
95
95
95
92
85
72
57
46
40
41
41
43
46
55
67
71
73
72
72
72
73
73

Pressure (mb)

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

Ozone (du)

262
261
261
260
260
260
259
259
258
258
259
259
258
258
258
261
262
262
262
261
261
261
260
260

Saturday 20

Waning Crescent 2%

05:00

18:40

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 OK
23 Good
00 Good
01 Good
02 Good

Sun - Rise: 06:47, Set: 19:05, Transit: 12:56. Moon - Rise: 05:00, Set: 18:40. Civil Dark: 19:38 - 06:14. Nautical Dark: 20:17 - 05:35. Astro Dark: 20:58 - 04:54

Total Clouds (% Sky Obscured)

81
68
100
100
100
100
100
89
96
100
100
100
100
99
100
100
71
52
51
24
0
10
7
4

Low Clouds (% Sky Obscured)

13
6
31
26
47
69
71
76
90
59
51
93
93
89
69
63
71
52
51
22
0
10
0
0

Medium Clouds (% Sky Obscured)

41
68
76
46
21
71
24
76
32
40
43
97
91
88
50
0
0
0
0
0
0
0
4
2

High Clouds (% Sky Obscured)

31
46
98
100
100
100
100
35
42
97
100
100
94
89
81
80
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
3
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
6
45
81
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
Very Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
2
22
22
11
60
49
61
16
2
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
0.2
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
5
5
6
5
5
8
11
12
14
14
15
16
14
18
17
16
18
16
15
12
11
9
8

Chance of Frost

Temperature (°C)

14
14
14
14
14
15
16
17
18
19
19
19
19
18
18
18
17
16
14
13
12
11
11
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
82
79
87
95
92
83
74
66
60
57
57
63
82
82
81
87
86
84
89
89
87
90
95

Pressure (mb)

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

Ozone (du)

261
260
262
261
262
263
264
263
262
263
263
265
266
267
269
277
278
279
282
285
288
292
294
294

Sunday 21

New Moon 0%

06:15

18:50

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

Sun - Rise: 06:49, Set: 19:03, Transit: 12:56. Moon - Rise: 06:15, Set: 18:50. Civil Dark: 19:36 - 06:16. Nautical Dark: 20:15 - 05:37. Astro Dark: 20:56 - 04:56

Total Clouds (% Sky Obscured)

9
33
33
33
32
54
71
82
94
96
98
93
91
83
70
50
12
50
29
20
21
23
20
31

Low Clouds (% Sky Obscured)

9
33
33
33
32
48
58
71
87
59
57
54
46
24
32
16
3
15
27
18
17
15
14
26

Medium Clouds (% Sky Obscured)

0
1
2
3
3
6
13
56
17
30
86
93
91
80
70
50
12
50
4
5
8
7
5
4

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
1
1
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
0
0
3
4
2
3
3
3
2
1
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
3
3
3
4
7
9
10
10
10
10
11
11
11
9
6
8
10
9
8
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
10
10
9
9
10
10
10
9
10
10
9
10
9
9
10
9
7
6
6
7
5
5
6

Dew Point (°C)

9
8
8
8
8
8
7
6
5
5
5
5
4
3
3
3
2
1
2
4
5
4
4
4

Relative Humidity (%)

95
93
93
93
96
93
80
66
58
57
57
54
49
48
49
48
52
50
57
69
74
69
73
77

Pressure (mb)

1015
1016
1016
1017
1017
1018
1019
1019
1020
1020
1020
1020
1021
1021
1021
1022
1022
1023
1024
1025
1025
1025
1025
1026

Ozone (du)

293
293
295
296
298
299
299
301
302
303
305
307
307
308
309
311
313
314
314
314
314
315
316
316

Monday 22

Waxing Crescent 1%

07:28

19:00

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

Sun - Rise: 06:50, Set: 19:00, Transit: 12:55. Moon - Rise: 07:28, Set: 19:00. Civil Dark: 19:33 - 06:17. Nautical Dark: 20:13 - 05:38. Astro Dark: 20:53 - 04:58

Total Clouds (% Sky Obscured)

41
40
40
40
48
52
58
58
59
59
56
60
60
52
66
66
69
62
74
78
81
86
96
95

Low Clouds (% Sky Obscured)

36
38
39
40
45
45
43
43
43
43
35
37
35
37
54
60
46
18
8
9
8
9
27
43

Medium Clouds (% Sky Obscured)

2
0
0
0
13
27
38
37
37
32
27
20
15
9
5
0
0
0
0
16
37
56
57
49

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
1
2
2
2
1
0
28
57
74
78
81
76
91
89

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
0
0
0
0
3
2
1
3
4
1
1
0
0
3
3
1
6
6
1
46
58

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
0.2

Wind Speed/Direction (mph)

8
8
8
8
8
9
11
13
14
14
14
14
13
13
13
14
11
10
9
9
9
8
8
8

Chance of Frost

Temperature (°C)

8
7
7
7
7
8
10
11
13
14
15
15
16
16
15
14
13
12
11
10
9
9
8
8

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
78
77
76
82
79
69
60
52
47
42
40
36
34
38
50
52
57
68
74
77
81
84
84

Pressure (mb)

1026
1026
1026
1026
1027
1027
1028
1028
1028
1028
1027
1027
1027
1026
1026
1027
1027
1027
1028
1028
1027
1027
1027
1026

Ozone (du)

318
322
324
324
322
322
322
319
317
316
315
314
313
312
312
311
311
311
311
310
309
309
308
308

Tuesday 23

Waxing Crescent 3%

08:40

19:11

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: 06:52, Set: 18:58, Transit: 12:55. Moon - Rise: 08:40, Set: 19:11. Civil Dark: 19:31 - 06:19. Nautical Dark: 20:10 - 05:40. Astro Dark: 20:51 - 04:59

Total Clouds (% Sky Obscured)

91
91
91
95
95
96
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

55
60
62
68
80
83
90
95
100
100
90
80
71
64
58
52
59
69
79
69
58
46
51
58

Medium Clouds (% Sky Obscured)

50
49
53
52
58
51
95
98
100
100
100
100
98
100
100
100
100
100
100
99
98
97
92
87

High Clouds (% Sky Obscured)

85
85
80
80
85
85
85
100
100
100
100
100
75
100
65
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
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

56
52
57
70
85
94
95
95
95
95
95
95
95
95
95
95
61
71
80
70
58
44
43
37

Precipitation Amount (mm)

0
0
0
0.4
0.6
0.7
0.8
1.1
1.7
2.2
1.5
1.2
1
1.2
1
0.8
0.2
0.4
0.6
0.4
0.3
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
7
6
7
7
7
7
6
7
7
7
8
7
7
8
8
8
8
8
8
8
8
8
7

Dew Point (°C)

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

Relative Humidity (%)

87
90
91
93
91
78
68
63
57
53
52
55
60
54
57
60
62
66
71
76
80
84
87
85

Pressure (mb)

1026
1025
1025
1025
1025
1025
1025
1024
1024
1023
1023
1023
1022
1022
1022
1022
1022
1023
1023
1023
1023
1023
1023
1023

Ozone (du)

309
310
311
314
315
316
315
316
314
314
315
314
317
312
316
311
309
309
308
308
307
306
305
305

Wednesday 24

Waxing Crescent 7%

09:52

19:24

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: 06:54, Set: 18:56, Transit: 12:55. Moon - Rise: 09:52, Set: 19:24. Civil Dark: 19:29 - 06:21. Nautical Dark: 20:08 - 05:42. Astro Dark: 20:48 - 05:01

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
99
98
96
98
99
100
99
99
99
98
97
96
97
99

Low Clouds (% Sky Obscured)

64
71
77
84
90
95
100
96
93
89
91
93
94
94
93
93
86
83
81
87
90
93
81
69

Medium Clouds (% Sky Obscured)

81
86
89
94
95
94
92
95
97
100
88
78
74
81
83
82
82
86
94
86
79
71
74
76

High Clouds (% Sky Obscured)

100
100
100
98
97
99
100
73
43
10
4
2
0
33
67
100
91
85
84
73
62
45
63
82

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

Precipitation Probability (%)

18
44
57
68
62
54
47
45
41
35
42
41
37
45
45
43
37
55
31
35
35
30
36
36

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

7
8
8
8
8
9
9
9
10
11
12
10
9
8
6
5
4
4
3
3
3
3
4
5

Chance of Frost

Temperature (°C)

11
11
11
11
11
11
11
11
12
12
13
13
13
13
13
13
12
12
11
11
11
11
11
11

Feels Like (°C)

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

Dew Point (°C)

9
9
9
9
9
9
9
9
9
8
8
8
9
8
9
10
10
10
10
10
10
10
10
10

Relative Humidity (%)

86
86
87
88
91
90
88
85
81
76
71
71
72
72
77
81
89
90
91
95
93
91
90
90

Pressure (mb)

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

Ozone (du)

305
305
306
306
306
306
306
306
307
307
307
307
306
306
306
307
307
307
306
306
305
304
303
303

Thursday 25

Waxing Crescent 13%

11:06

19:39

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

Sun - Rise: 06:55, Set: 18:54, Transit: 12:54. Moon - Rise: 11:06, Set: 19:39. Civil Dark: 19:27 - 06:22. Nautical Dark: 20:05 - 05:43. Astro Dark: 20:46 - 05:03

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
98
97
95
93
91
90
93
97
100

Low Clouds (% Sky Obscured)

57
59
60
64
68
73
78
80
81
81
74
69
63
60
61
69
75
76
75
80
86
90

Medium Clouds (% Sky Obscured)

79
79
79
79
85
91
97
98
99
99
97
96
95
76
60
41
51
58
62
61
61
60

High Clouds (% Sky Obscured)

100
82
58
47
57
62
70
64
59
55
64
78
97
82
66
49
65
78
88
83
82
72

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

Fog (%)

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

Precipitation Probability (%)

21
29
28
17
27
22
19
21
24
37
51
59
63
57
51
40
38
32
14
27
29
21

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
85
87
87
88
87
86
86
86
86
84
73
64
56
58
60
62
64
65
66
69
72

Pressure (mb)

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

Ozone (du)

303
303
304
304
305
304
304
303
303
303
303
301
300
299
299
298
298
298
297
297
296
296

Forecast for Crondall, Hampshire, United Kingdom (51.23,-0.86)

Generated: 19/09/25 03:53:09. Forecast: 19/09/25 to 25/09/25. Timezone: UTC+1.00