Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 6%

03:34

18:05

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

Sun - Rise: 06:37, Set: 19:01, Transit: 12:48. Moon - Rise: 03:34, Set: 18:05. Civil Dark: 19:34 - 06:04. Nautical Dark: 20:13 - 05:25. Astro Dark: 20:55 - 04:43

Total Clouds (% Sky Obscured)

84
79
69
66
59
53
44
55
34
37
57
60
54
37
34
33
5
45
13
90
70
7
100
75

Low Clouds (% Sky Obscured)

50
47
52
46
56
50
44
39
26
33
52
58
53
37
29
33
4
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

5
0
0
0
3
7
4
55
34
37
41
60
43
0
0
0
0
0
0
36
46
0
61
48

High Clouds (% Sky Obscured)

0
0
1
25
20
19
2
19
6
7
26
9
1
2
9
1
3
40
13
76
62
7
81
2

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
2
6
2
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)

19
17
15
14
12
11
10
10
9
8
8
7
7
7
7
6
9
11
12
13
13
13
13
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

13
13
14
14
14
14
15
15
14
14
14
15
15
15
15
15
14
14
12
10
8
7
6
5

Relative Humidity (%)

65
70
76
78
81
85
89
92
89
90
92
95
95
95
95
87
75
67
57
47
41
38
33
31

Pressure (mb)

1020
1020
1021
1021
1022
1022
1022
1022
1022
1022
1021
1021
1021
1020
1020
1020
1020
1020
1020
1019
1019
1018
1017
1017

Ozone (du)

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

Friday 19

Waning Crescent 2%

04:52

18:19

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

Sun - Rise: 06:39, Set: 18:59, Transit: 12:47. Moon - Rise: 04:52, Set: 18:19. Civil Dark: 19:32 - 06:06. Nautical Dark: 20:11 - 05:26. Astro Dark: 20:52 - 04:45

Total Clouds (% Sky Obscured)

37
0
0
25
23
74
99
45
22
79
32
32
50
83
35
100
100
100
100
98
95
100
96
67

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
11
27
28
25
0
0
0
0
0
33
33
48
46
39

Medium Clouds (% Sky Obscured)

24
0
0
12
15
39
80
45
22
61
32
32
50
60
35
58
80
93
90
72
67
73
25
27

High Clouds (% Sky Obscured)

3
0
0
3
0
41
92
13
22
71
15
15
37
69
35
100
100
100
100
95
88
100
87
26

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
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
1
3
11
0
0
0
0
0
0
8
31
40
60
28
23
3
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)

9
5
5
5
5
5
4
4
5
5
5
6
6
7
6
9
13
10
15
21
17
18
21
20

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

5
7
7
5
5
5
5
5
6
7
8
10
10
10
10
12
14
12
12
16
17
18
18
16

Relative Humidity (%)

33
42
45
42
41
41
43
44
49
50
56
63
65
65
69
71
70
58
59
74
81
84
85
75

Pressure (mb)

1016
1016
1016
1016
1016
1016
1015
1015
1014
1014
1013
1012
1012
1012
1011
1011
1011
1011
1011
1010
1010
1009
1008
1008

Ozone (du)

257
258
260
260
259
260
259
260
259
260
260
260
259
258
261
260
261
261
261
260
261
261
262
263

Saturday 20

Waning Crescent 0%

06:06

18:31

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

Sun - Rise: 06:40, Set: 18:56, Transit: 12:47. Moon - Rise: 06:06, Set: 18:31. Civil Dark: 19:29 - 06:07. Nautical Dark: 20:09 - 05:28. Astro Dark: 20:49 - 04:47

Total Clouds (% Sky Obscured)

66
53
57
100
42
0
81
73
75
24
21
24
22
27
29
33
38
78
100
100
87
72
55
62

Low Clouds (% Sky Obscured)

50
38
37
60
38
0
22
36
21
24
21
24
22
27
29
33
38
51
73
63
56
50
43
52

Medium Clouds (% Sky Obscured)

32
46
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
24
7
4
44

High Clouds (% Sky Obscured)

8
1
36
80
11
0
60
44
75
0
0
0
0
0
0
1
1
78
100
100
75
47
20
20

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
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
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

5
1
0
0
0
0
0
2
1
0
1
2
2
3
3
13
36
42
51
43
19
15
9
11

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

18
17
17
17
19
17
14
13
13
13
13
13
12
11
9
8
9
10
11
11
10
11
12
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
70
76
68
74
83
84
86
84
83
81
80
84
88
93
84
71
66
66
70
69
62
59
57

Pressure (mb)

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

Ozone (du)

266
268
268
271
276
275
274
274
275
275
276
277
279
281
282
282
283
284
284
287
289
290
290
292

Sunday 21

New Moon 1%

07:19

18:41

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
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:42, Set: 18:54, Transit: 12:47. Moon - Rise: 07:19, Set: 18:41. Civil Dark: 19:27 - 06:09. Nautical Dark: 20:06 - 05:30. Astro Dark: 20:47 - 04:49

Total Clouds (% Sky Obscured)

71
81
80
80
80
78
75
76
76
75
75
73
71
68
75
82
89
93
96
100
96
92
88
84

Low Clouds (% Sky Obscured)

60
68
63
58
52
55
57
59
55
50
45
51
51
51
59
66
73
72
68
68
69
71
75
70

Medium Clouds (% Sky Obscured)

15
75
66
25
65
62
21
61
66
61
62
22
20
59
70
49
32
39
56
65
51
39
28
23

High Clouds (% Sky Obscured)

20
0
0
0
0
0
0
0
3
0
0
0
0
1
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
Very Light Rain
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
Very Light Rain

Precipitation Probability (%)

10
5
11
11
6
17
19
25
41
43
41
50
53
41
57
64
53
73
75
76
72
73
58
62

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

59
62
63
64
62
61
65
75
75
70
71
68
70
70
64
61
56
55
56
54
53
55
53
52

Pressure (mb)

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

Ozone (du)

294
296
298
300
303
303
305
307
307
309
309
308
309
310
311
312
311
311
312
312
311
310
309
308

Monday 22

Waxing Crescent 3%

08:31

18:52

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
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:43, Set: 18:52, Transit: 12:46. Moon - Rise: 08:31, Set: 18:52. Civil Dark: 19:25 - 06:10. Nautical Dark: 20:04 - 05:31. Astro Dark: 20:44 - 04:51

Total Clouds (% Sky Obscured)

65
61
75
84
85
81
78
78
73
69
61
56
51
47
55
60
67
57
47
46
59
83
80
86

Low Clouds (% Sky Obscured)

56
52
61
67
66
66
66
70
64
58
52
47
43
42
45
44
41
49
47
46
59
52
45
49

Medium Clouds (% Sky Obscured)

18
14
22
29
33
36
42
53
47
46
37
29
19
11
52
60
67
57
47
38
41
49
38
48

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
55
60
67
57
47
41
26
15
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
8
7
6

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

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

Precipitation Probability (%)

66
48
64
62
30
50
47
23
33
32
17
23
21
10
47
53
57
55
56
63
59
52
38
43

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

50
50
54
57
55
56
59
64
70
67
65
65
68
71
72
64
57
53
53
54
54
59
62
67

Pressure (mb)

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

Ozone (du)

307
306
306
307
306
305
305
304
304
303
302
302
301
301
301
301
301
301
303
304
305
307
308
310

Tuesday 23

Waxing Crescent 7%

09:43

19:03

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
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:45, Set: 18:49, Transit: 12:46. Moon - Rise: 09:43, Set: 19:03. Civil Dark: 19:22 - 06:12. Nautical Dark: 20:01 - 05:33. Astro Dark: 20:42 - 04:53

Total Clouds (% Sky Obscured)

91
93
92
92
93
95
98
100
99
97
96
97
99
100
100
100
100
100
100
100
99
97
96
97

Low Clouds (% Sky Obscured)

52
55
59
63
69
79
88
96
96
95
93
95
97
100
95
91
88
86
81
73
65
65
67
66

Medium Clouds (% Sky Obscured)

49
55
35
25
25
20
15
10
5
8
12
12
21
34
27
28
15
10
20
20
15
15
20
24

High Clouds (% Sky Obscured)

50
70
77
83
88
85
83
85
71
45
16
42
68
96
96
95
94
67
40
12
41
69
96
94

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

45
45
50
57
64
64
64
63
64
63
58
57
53
46
51
49
36
53
62
73
68
66
70
64

Precipitation Amount (mm)

0
0
0
0.2
0.3
0.2
0.2
0
0.2
0.2
0
0.2
0.2
0
0.2
0
0
0.2
0.4
0.6
0.4
0.4
0.6
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
12
12
8
8
8
9
8
8
8
8
8
7
8
8
9
9
8
8
9
9
9
9
9

Dew Point (°C)

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

Relative Humidity (%)

68
69
69
64
59
56
55
55
54
56
58
62
58
54
49
53
57
61
62
64
66
61
58
56

Pressure (mb)

1022
1022
1022
1023
1023
1023
1022
1022
1022
1022
1022
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

311
313
314
315
316
317
316
315
313
313
312
312
311
311
311
310
310
310
309
309
309
309
309
309

Wednesday 24

Waxing Crescent 13%

10:56

19:15

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
12 Bad

Sun - Rise: 06:46, Set: 18:47, Transit: 12:46. Moon - Rise: 10:56, Set: 19:15. Civil Dark: 19:20 - 06:14. Nautical Dark: 19:59 - 05:35. Astro Dark: 20:39 - 04:55

Total Clouds (% Sky Obscured)

98
99
100
100
100
100
100
100
100
100
100
100
100
100
99
99
98
99
99
100

Low Clouds (% Sky Obscured)

66
66
57
50
42
43
47
49
54
57
63
64
65
68
65
61
55
52
45
41

Medium Clouds (% Sky Obscured)

37
35
41
43
39
35
25
10
9
4
8
7
12
13
25
33
43
45
57
79

High Clouds (% Sky Obscured)

95
95
94
93
91
94
99
100
100
100
100
99
98
99
99
99
98
99
99
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

Fog (%)

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

Precipitation Probability (%)

52
39
37
34
26
32
29
26
29
30
31
36
36
39
35
30
24
25
26
13

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

56
57
57
60
64
69
70
71
72
74
76
77
79
81
83
78
70
66
62
59

Pressure (mb)

1022
1022
1022
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1024
1024
1024
1024
1024

Ozone (du)

310
310
310
310
309
308
308
308
307
307
307
307
307
307
306
306
306
306
305
304

Forecast for Dover, Kent, United Kingdom (51.13,1.31)

Generated: 18/09/25 17:28:12. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+1.00