Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 12%

03:54

18:47

10 OK
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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 07:05, Set: 19:32, Transit: 13:18. Moon - Rise: 03:54, Set: 18:47. Civil Dark: 20:08 - 06:30. Nautical Dark: 20:51 - 05:47. Astro Dark: 21:36 - 05:01

Total Clouds (% Sky Obscured)

41
56
64
73
100
100
100
100
93
100
100
100
100
100
100
100
100
100
100
89
100
99
98
99

Low Clouds (% Sky Obscured)

29
29
39
73
95
97
94
87
77
91
71
92
63
69
61
48
46
73
81
56
54
37
42
26

Medium Clouds (% Sky Obscured)

41
45
64
73
97
86
97
40
26
79
26
27
32
48
75
65
82
95
99
50
75
97
91
97

High Clouds (% Sky Obscured)

41
56
64
73
93
57
100
100
35
99
100
100
100
100
100
100
100
100
100
62
93
82
34
28

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
4
9
9
9
9
6
9
9
8
8
8
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
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
3
32
38
51
66
64
56
40
27
15
16
21
30
11
22
33
31
19
18
11
7
11

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
78
74
70
73
87
92
92
92
93
90
90
93
95
95
93
95
95
95
95
93
93
92
92

Pressure (mb)

1012
1012
1012
1011
1011
1011
1010
1010
1009
1009
1009
1010
1010
1010
1010
1010
1010
1010
1010
1011
1011
1011
1012
1012

Ozone (du)

266
266
266
268
269
266
267
268
268
265
265
265
265
266
266
267
267
267
269
269
269
270
270
271

Friday 19

Waning Crescent 6%

05:16

18:57

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 07:07, Set: 19:29, Transit: 13:17. Moon - Rise: 05:16, Set: 18:57. Civil Dark: 20:05 - 06:31. Nautical Dark: 20:48 - 05:49. Astro Dark: 21:33 - 05:04

Total Clouds (% Sky Obscured)

100
100
100
100
100
95
94
100
100
100
100
100
100
91
82
62
84
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

67
33
64
66
66
61
60
35
56
40
0
0
0
0
0
0
19
3
36
58
45
33
4
22

Medium Clouds (% Sky Obscured)

100
100
100
100
99
91
90
100
100
100
97
90
62
87
47
30
25
100
96
62
83
92
100
100

High Clouds (% Sky Obscured)

67
59
19
86
61
41
29
42
87
53
100
100
100
66
76
62
79
100
82
100
100
100
91
40

ISS Passover

Visibility (miles)

9
9
9
8
9
7
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 (%)

10
30
33
43
43
45
17
6
2
3
1
0
0
0
0
0
0
0
0
0
0
0
0
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)

8
7
7
7
7
7
8
8
7
5
5
5
6
5
5
5
4
4
4
4
4
3
3
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
89
83
86
89
89
92
87
87
92
93
93
95
95
95
95
95
95
91
93
93
93
90
88

Pressure (mb)

1012
1012
1013
1013
1012
1012
1012
1012
1012
1012
1012
1013
1013
1012
1012
1012
1012
1011
1011
1011
1010
1010
1010
1010

Ozone (du)

270
270
269
269
270
271
272
273
273
274
275
277
279
280
280
282
283
283
284
285
285
286
288
290

Saturday 20

Waning Crescent 2%

06:35

19:04

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 07:09, Set: 19:27, Transit: 13:17. Moon - Rise: 06:35, Set: 19:04. Civil Dark: 20:02 - 06:33. Nautical Dark: 20:45 - 05:51. Astro Dark: 21:30 - 05:06

Total Clouds (% Sky Obscured)

100
97
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
75
62
70
64
55
43

Low Clouds (% Sky Obscured)

78
63
71
59
65
67
40
50
61
100
100
100
91
92
83
62
41
19
17
44
36
34
32
30

Medium Clouds (% Sky Obscured)

100
96
97
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
59
62
69
56
45
35

High Clouds (% Sky Obscured)

30
25
2
30
100
100
60
77
95
82
93
100
100
100
100
100
100
48
61
38
40
38
2
10

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
5
2
2
4
3
1
2
1
2
2
2
3
3
2
2
2
2

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
Light Rain
Light Rain
Light Rain
Light Rain
Moderate 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

Precipitation Probability (%)

5
4
5
18
25
55
73
95
95
95
95
95
95
95
95
95
95
95
89
93
91
88
92
75

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.9
1.1
2.3
2.4
4
1.5
1.9
1.2
1.3
1.2
0.8
0.4
0.7
0.8
0.7
0.8
0.4

Wind Speed/Direction (mph)

3
4
3
4
5
5
8
7
8
7
9
14
19
16
15
15
16
16
14
13
12
12
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
11
11
12
11
12
10
9
8
7
5
4
3
3
3
3
1
1
-1
-1
0
-1
2
3

Dew Point (°C)

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

Relative Humidity (%)

84
79
77
68
73
83
89
89
92
93
91
93
93
93
95
95
95
93
93
91
93
88
93
90

Pressure (mb)

1010
1009
1009
1008
1008
1008
1006
1006
1005
1006
1006
1006
1006
1007
1007
1007
1008
1008
1009
1010
1011
1012
1013
1014

Ozone (du)

289
290
293
293
296
297
300
303
306
308
311
313
311
311
312
313
313
314
314
315
314
314
314
314

Sunday 21

New Moon 0%

07:52

19:11

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

Sun - Rise: 07:11, Set: 19:24, Transit: 13:17. Moon - Rise: 07:52, Set: 19:11. Civil Dark: 20:00 - 06:35. Nautical Dark: 20:42 - 05:53. Astro Dark: 21:27 - 05:08

Total Clouds (% Sky Obscured)

46
48
54
43
49
48
46
40
44
43
9
2
2
4
3
7
9
25
10
6
4
6
5
5

Low Clouds (% Sky Obscured)

34
38
41
36
29
23
25
32
37
35
8
2
2
2
2
6
6
11
3
2
1
1
1
1

Medium Clouds (% Sky Obscured)

25
25
20
6
13
23
12
7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

4
4
5
25
30
19
25
28
34
2
0
0
0
3
2
1
2
25
8
4
2
3
2
3

ISS Passover

Visibility (miles)

5
8
9
9
9
8
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 (%)

47
33
22
21
30
25
16
14
7
7
10
1
5
2
1
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)

15
16
16
17
17
15
15
14
12
10
9
7
7
6
6
5
4
4
4
3
3
3
4
4

Chance of Frost

Temperature (°C)

10
11
11
12
13
12
12
12
11
10
10
8
8
8
7
7
6
5
5
5
5
4
6
8

Feels Like (°C)

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

Dew Point (°C)

9
9
9
8
8
9
10
8
6
5
5
5
3
2
2
2
3
2
2
2
2
1
2
3

Relative Humidity (%)

91
87
84
77
74
79
84
76
71
69
71
79
68
67
69
74
79
80
80
80
80
80
79
74

Pressure (mb)

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

Ozone (du)

314
315
315
316
316
316
316
318
321
321
318
316
315
314
315
315
314
314
313
311
309
307
305
305

Monday 22

Waxing Crescent 1%

09:08

19:17

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

Sun - Rise: 07:13, Set: 19:22, Transit: 13:16. Moon - Rise: 09:08, Set: 19:17. Civil Dark: 19:57 - 06:37. Nautical Dark: 20:40 - 05:55. Astro Dark: 21:24 - 05:10

Total Clouds (% Sky Obscured)

20
34
77
89
94
100
92
84
77
64
57
42
54
59
69
77
83
91
93
94
93
93
95
96

Low Clouds (% Sky Obscured)

20
34
51
57
64
63
64
84
77
64
57
42
42
23
17
33
48
63
61
60
63
60
56
54

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
7
6
2
5
8
12
24
31
37
34
32
26
45
64
82
85
90
95

High Clouds (% Sky Obscured)

3
3
46
55
55
45
40
35
30
35
28
21
14
16
21
40
60
79
61
47
32
18
13
8

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
3
5
4
10
17
14
9
4
1
1
1
0
2
2
1
3
3
2
5
5
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
60
57
58
59
59
63
73
77
80
82
82
85
91
93
94
93
90
90
90
88
88
87
84

Pressure (mb)

1027
1027
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025
1025
1026
1026
1026

Ozone (du)

304
303
303
302
301
301
301
299
299
298
299
298
296
296
295
295
296
296
296
297
298
299
299
298

Tuesday 23

Waxing Crescent 3%

No Rise

19:24

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 07:15, Set: 19:19, Transit: 13:16. Moon - Rise: No Rise, Set: 19:24. Civil Dark: 19:55 - 06:39. Nautical Dark: 20:37 - 05:57. Astro Dark: 21:21 - 05:13

Total Clouds (% Sky Obscured)

96
97
98
98
98
97
93
90
88
90
94
96
91
87
83
82
79
75
75
77
77
76
72
68

Low Clouds (% Sky Obscured)

57
59
62
56
52
48
43
48
46
59
70
78
77
76
81
76
60
43
36
28
21
26
31
34

Medium Clouds (% Sky Obscured)

94
94
92
73
53
33
32
31
32
26
23
21
21
21
21
18
16
14
16
11
2
3
5
7

High Clouds (% Sky Obscured)

8
5
3
9
14
21
14
8
0
0
0
3
7
11
23
38
51
64
69
77
77
76
72
68

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 (%)

8
8
3
10
11
7
11
12
11
15
15
11
12
13
14
13
10
3
8
7
1
3
4
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
80
76
74
74
75
75
79
81
83
86
88
88
90
90
91
90
90
90
90
90
90
84
80

Pressure (mb)

1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027

Ozone (du)

297
297
296
295
295
295
295
295
295
295
295
295
295
295
295
295
295
296
296
297
297
297
296
295

Wednesday 24

Waxing Crescent 7%

10:25

19:33

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
05 Bad
06 OK

Sun - Rise: 07:16, Set: 19:17, Transit: 13:16. Moon - Rise: 10:25, Set: 19:33. Civil Dark: 19:52 - 06:41. Nautical Dark: 20:34 - 05:59. Astro Dark: 21:19 - 05:15

Total Clouds (% Sky Obscured)

65
59
57
68
84
99
100
100
100
98
96
94
95
96
97
88
81
73
58
41
25

Low Clouds (% Sky Obscured)

37
40
46
45
45
42
41
44
47
54
61
67
59
53
45
39
32
23
27
31
25

Medium Clouds (% Sky Obscured)

14
21
29
41
53
61
52
46
45
55
70
86
68
50
32
28
25
21
12
5
0

High Clouds (% Sky Obscured)

65
55
31
47
59
76
87
94
100
78
56
39
53
67
80
62
43
25
25
24
25

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

Precipitation Probability (%)

5
5
3
8
8
4
15
11
5
27
36
33
17
13
19
19
14
3
4
3
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
70
65
61
62
62
63
65
70
72
76
83
87
87
87
90
90
90
91
90
90

Pressure (mb)

1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1028
1028
1028
1028
1028
1028
1028
1028
1028

Ozone (du)

294
295
295
295
295
294
294
294
294
294
294
294
294
296
298
300
301
302
304
304
304

Forecast for Knockmore, Lisburn and Castlereagh, United Kingdom (54.51,-6.07)

Generated: 18/09/25 10:48:23. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+1.00