Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 16

Waning Crescent 30%

23:29

16:41

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

Sun - Rise: 06:33, Set: 19:09, Transit: 12:50. Moon - Rise: 23:29, Set: 16:41. Civil Dark: 19:42 - 06:00. Nautical Dark: 20:22 - 05:20. Astro Dark: 21:04 - 04:38

Total Clouds (% Sky Obscured)

32
32
4
36
32
12
0
0
4
0
0
46
47
9
15
26
32
64
55
45
59
64
54
54

Low Clouds (% Sky Obscured)

37
35
42
36
50
45
51
34
29
34
45
46
49
9
15
26
32
57
47
45
50
55
49
48

Medium Clouds (% Sky Obscured)

39
45
32
19
40
31
34
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
0
0
0
23
11

ISS Passover

Visibility (miles)

-
-
-
-
-
-
-
-
-
-
-
-
-
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

-
-
-
-
-
-
-
-
-
-
-
-
-
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
4
5
12
4
3
2
1
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)

29
30
27
26
27
25
26
22
21
21
20
27
27
20
18
18
17
17
17
16
16
18
19
20

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

62
60
58
61
63
64
65
66
67
71
71
73
74
73
74
72
70
74
74
72
74
63
57
52

Pressure (mb)

1005
1005
1005
1005
1005
1006
1006
1007
1008
1009
1009
1010
1011
1012
1013
1013
1014
1014
1015
1015
1016
1017
1017
1018

Ozone (du)

295
298
302
305
306
305
305
305
306
309
311
312
312
309
308
305
305
305
304
303
304
304
303
300

Wednesday 17

Waning Crescent 20%

00:49

17:21

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
10 Bad
11 Bad

Sun - Rise: 06:34, Set: 19:06, Transit: 12:50. Moon - Rise: 00:49, Set: 17:21. Civil Dark: 19:40 - 06:01. Nautical Dark: 20:20 - 05:21. Astro Dark: 21:02 - 04:40

Total Clouds (% Sky Obscured)

62
100
74
100
100
100
72
77
67
100
100
100
100
100
100
100
100
100
100
98
99
99
100
99

Low Clouds (% Sky Obscured)

55
46
9
29
33
8
0
0
0
0
0
0
39
46
55
61
73
75
68
76
75
98
99
99

Medium Clouds (% Sky Obscured)

0
10
14
21
38
27
29
35
49
72
50
48
59
98
86
100
99
99
99
95
97
98
100
47

High Clouds (% Sky Obscured)

15
100
52
99
100
100
57
47
47
91
100
100
84
96
100
100
100
25
77
13
0
1
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
9
6
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

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

Precipitation Probability (%)

0
0
1
1
1
1
12
3
6
3
4
14
48
68
65
66
77
83
66
74
64
60
14
7

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

19
17
18
17
16
14
13
11
9
9
9
8
8
7
7
7
9
8
7
11
14
17
18
19

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

6
6
5
5
5
6
7
8
9
10
10
10
10
10
9
9
11
13
14
15
15
15
15
15

Relative Humidity (%)

48
44
40
40
40
45
52
59
70
76
78
78
80
82
77
76
82
89
92
93
93
89
89
86

Pressure (mb)

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

Ozone (du)

297
293
287
283
281
280
278
274
270
266
262
259
258
256
256
254
253
252
251
251
251
251
251
252

Thursday 18

Waning Crescent 12%

02:13

17:47

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
10 Bad
11 Bad

Sun - Rise: 06:36, Set: 19:04, Transit: 12:49. Moon - Rise: 02:13, Set: 17:47. Civil Dark: 19:37 - 06:03. Nautical Dark: 20:17 - 05:23. Astro Dark: 20:59 - 04:42

Total Clouds (% Sky Obscured)

100
100
97
100
69
74
73
67
52
42
49
67
57
64
54
64
83
89
75
80
52
64
88
68

Low Clouds (% Sky Obscured)

100
100
94
100
53
60
51
45
46
42
49
60
52
50
30
28
14
12
26
56
52
64
82
54

Medium Clouds (% Sky Obscured)

44
20
37
55
15
13
19
8
10
0
2
12
4
15
14
22
25
24
17
19
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
18
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 (%)

13
3
5
2
1
0
0
0
0
0
0
0
0
0
0
2
1
0
2
0
0
0
0
1

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
79
80
78
80
78
84
86
89
92
93
93
95
93
92
87
75
79
83
85
81
76
70
71

Pressure (mb)

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

Ozone (du)

254
256
258
261
261
261
260
261
260
260
261
261
261
262
263
263
263
263
262
261
260
260
260
259

Friday 19

Waning Crescent 6%

03:34

18:06

12 Bad
13 Bad
14 OK
15 OK
16 OK
17 OK
18 OK
19 OK
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 OK
09 OK
10 OK
11 OK

Sun - Rise: 06:38, Set: 19:02, Transit: 12:49. Moon - Rise: 03:34, Set: 18:06. Civil Dark: 19:35 - 06:04. Nautical Dark: 20:15 - 05:25. Astro Dark: 20:56 - 04:44

Total Clouds (% Sky Obscured)

60
72
40
23
27
25
25
34
42
50
50
54
56
68
83
98
85
72
61
54
43
41
37
33

Low Clouds (% Sky Obscured)

53
72
40
23
27
25
25
34
38
43
45
48
51
49
47
45
40
34
29
30
30
31
19
10

Medium Clouds (% Sky Obscured)

0
0
0
0
4
6
7
9
11
13
10
7
4
4
3
23
3
26
23
24
2
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
2
6
4
7
6
32
63
94
75
55
36
25
16
11
17
24

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)

17
19
19
18
18
16
14
11
10
10
9
8
7
7
6
6
5
5
6
6
7
10
12
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
66
63
62
61
64
70
80
89
92
93
93
93
92
92
93
92
90
87
85
76
56
48
41

Pressure (mb)

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

Ozone (du)

258
257
257
256
256
256
255
255
254
254
254
254
253
252
253
253
255
256
257
258
258
259
260
261

Saturday 20

Waning Crescent 2%

04:52

18:20

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

Sun - Rise: 06:39, Set: 18:59, Transit: 12:49. Moon - Rise: 04:52, Set: 18:20. Civil Dark: 19:33 - 06:06. Nautical Dark: 20:12 - 05:27. Astro Dark: 20:54 - 04:45

Total Clouds (% Sky Obscured)

40
48
42
42
51
59
59
50
61
100
86
69
41
64
78
98
99
98
98
99
99
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
14
24
31
28
25
5
21
23

Medium Clouds (% Sky Obscured)

0
0
0
2
0
0
31
14
27
83
80
69
14
17
22
23
31
39
52
80
82
78
83
86

High Clouds (% Sky Obscured)

35
32
29
22
34
43
46
50
61
95
72
42
8
43
61
92
96
87
89
93
96
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
2
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
3
6
8
11
13
14
16
19

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

20
20
20
19
20
20
18
17
16
16
14
14
13
14
13
15
14
14
15
16
17
17
17
16

Dew Point (°C)

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

Relative Humidity (%)

38
35
34
35
37
40
47
53
58
67
68
75
78
87
90
93
98
98
95
92
86
75
59
59

Pressure (mb)

1017
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1014

Ozone (du)

261
263
264
264
264
264
265
265
264
263
261
262
263
262
262
261
263
263
263
265
266
266
266
265

Sunday 21

New Moon 0%

06:07

18:32

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
10 Bad
11 Bad

Sun - Rise: 06:41, Set: 18:57, Transit: 12:48. Moon - Rise: 06:07, Set: 18:32. Civil Dark: 19:30 - 06:08. Nautical Dark: 20:10 - 05:28. Astro Dark: 20:51 - 04:47

Total Clouds (% Sky Obscured)

100
99
99
98
99
99
100
97
94
90
93
96
99
88
75
63
61
60
61
61
75
85
91
96

Low Clouds (% Sky Obscured)

20
28
34
43
36
30
26
34
42
46
47
56
51
44
37
28
25
20
16
19
20
23
38
52

Medium Clouds (% Sky Obscured)

90
84
83
81
81
77
77
63
50
32
21
22
23
23
24
25
25
35
25
10
10
5
5
4

High Clouds (% Sky Obscured)

100
97
94
92
93
95
97
85
76
71
76
80
85
75
67
59
61
60
60
61
75
85
91
96

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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

30
37
37
32
31
28
22
16
10
1
5
6
3
22
30
28
64
82
79
78
77
81
73
64

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

12
13
13
13
13
12
11
10
10
10
9
7
7
5
4
4
4
3
3
4
5
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

65
68
72
74
78
77
75
74
77
79
80
83
86
89
92
93
96
95
95
95
83
71
62
59

Pressure (mb)

1014
1013
1013
1013
1013
1012
1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014

Ozone (du)

265
265
267
268
269
272
274
276
278
280
282
284
286
288
292
295
298
300
302
304
306
308
310
313

Monday 22

Waxing Crescent 0%

07:20

18:42

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
10 Bad
11 Bad

Sun - Rise: 06:42, Set: 18:55, Transit: 12:48. Moon - Rise: 07:20, Set: 18:42. Civil Dark: 19:28 - 06:09. Nautical Dark: 20:07 - 05:30. Astro Dark: 20:48 - 04:49

Total Clouds (% Sky Obscured)

100
99
99
98
72
42
19
43
60
77
63
53
43
47
51
54
60
63
68
79
89
100
94
87

Low Clouds (% Sky Obscured)

67
66
63
57
42
26
10
28
46
64
51
38
25
29
34
39
46
53
62
65
66
66
62
56

Medium Clouds (% Sky Obscured)

7
15
32
36
21
10
0
0
1
1
1
1
2
26
50
54
60
63
65
70
82
86
79
65

High Clouds (% Sky Obscured)

100
91
87
83
49
23
0
0
0
0
0
0
0
0
0
0
8
16
25
36
44
55
41
31

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

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

Precipitation Probability (%)

58
44
34
27
37
44
41
58
66
65
70
71
53
74
65
43
75
70
45
55
45
25
53
56

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

58
55
63
72
84
84
87
87
84
80
78
76
73
72
75
75
77
81
87
91
86
81
77
69

Pressure (mb)

1014
1014
1014
1015
1015
1015
1015
1016
1016
1016
1017
1017
1017
1017
1017
1017
1018
1018
1018
1018
1019
1019
1019
1019

Ozone (du)

316
318
319
320
320
321
322
323
324
325
327
328
330
331
331
332
332
332
333
333
334
334
335
336

Forecast for Herne, Kent, United Kingdom (51.35,1.12)

Generated: 16/09/25 01:55:47. Forecast: 16/09/25 to 22/09/25. Timezone: UTC+1.00