Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 11

New Moon 2%

08:08

19:28

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

Sun - Rise: 06:31, Set: 19:22, Transit: 12:56. Moon - Rise: 08:08, Set: 19:28. Civil Dark: 19:56 - 05:57. Nautical Dark: 20:37 - 05:16. Astro Dark: 21:23 - 04:33

Total Clouds (% Sky Obscured)

47
52
69
71
53
25
19
29
10
74
100
100
100
86
63
56
65
86
42
60
97
86
83
100

Low Clouds (% Sky Obscured)

47
52
44
27
29
0
0
2
3
0
0
0
8
31
43
41
59
59
29
39
36
45
30
58

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
5
5
12
20
25
20
29
18
18
21
19
30
30
52

High Clouds (% Sky Obscured)

2
52
42
25
44
25
19
21
6
72
100
100
100
60
6
8
3
2
17
57
57
33
73
59

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
1
1
1
1
4
7
18
36

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)

1
2
2
2
4
4
5
6
5
6
6
7
9
11
11
12
13
13
13
13
13
11
11
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

52
52
53
59
69
73
76
81
87
87
88
80
69
57
49
46
47
51
57
55
56
60
65
70

Pressure (mb)

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

Ozone (du)

305
302
299
295
294
295
295
294
294
293
292
292
293
292
293
294
296
298
298
300
301
301
300
299

Saturday 12

Waxing Crescent 7%

09:28

19:41

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
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 06:33, Set: 19:19, Transit: 12:56. Moon - Rise: 09:28, Set: 19:41. Civil Dark: 19:53 - 05:59. Nautical Dark: 20:34 - 05:18. Astro Dark: 21:20 - 04:35

Total Clouds (% Sky Obscured)

88
100
100
100
100
100
99
100
100
100
100
94
99
82
78
55
65
67
68
79
66
80
69
82

Low Clouds (% Sky Obscured)

37
60
94
75
99
73
77
82
94
95
92
90
98
76
74
55
59
67
68
79
66
80
22
19

Medium Clouds (% Sky Obscured)

78
47
89
72
83
64
76
96
100
100
100
52
72
67
21
0
16
12
0
7
0
0
0
5

High Clouds (% Sky Obscured)

42
100
100
100
100
100
92
100
100
100
100
30
0
0
0
5
8
21
10
2
8
5
25
43

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

39
45
26
23
64
35
51
40
59
95
46
37
24
9
9
14
4
0
1
0
0
5
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

9
10
10
10
10
10
9
9
9
7
6
6
7
8
6
8
8
8
8
7
6
6
4
4

Chance of Frost

Temperature (°C)

18
17
17
17
17
17
17
17
17
17
17
17
18
19
20
21
22
23
23
22
22
22
20
19

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
81
86
85
86
87
89
92
93
93
95
95
89
80
77
69
61
54
56
64
63
61
64
70

Pressure (mb)

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

Ozone (du)

300
301
300
298
296
294
293
292
291
292
295
300
308
312
309
302
300
298
297
295
294
292
291
290

Sunday 13

Waxing Crescent 13%

10:46

19:55

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

Sun - Rise: 06:34, Set: 19:17, Transit: 12:56. Moon - Rise: 10:46, Set: 19:55. Civil Dark: 19:51 - 06:01. Nautical Dark: 20:32 - 05:20. Astro Dark: 21:17 - 04:37

Total Clouds (% Sky Obscured)

69
100
100
100
100
95
88
69
79
56
57
44
49
58
56
44
56
86
98
97
84
28
40
41

Low Clouds (% Sky Obscured)

16
17
16
19
23
6
0
0
18
37
31
32
39
52
53
43
54
75
96
95
76
28
40
41

Medium Clouds (% Sky Obscured)

10
21
11
37
8
6
9
9
9
6
4
10
9
4
4
0
29
26
16
24
7
0
0
4

High Clouds (% Sky Obscured)

27
99
100
100
98
87
84
58
51
20
7
0
0
3
1
2
1
1
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
0
0
0
0
0
0
0
0
0
0
1
3
9
10
1
1
0
5

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)

3
2
2
2
2
3
4
5
5
5
5
5
7
7
8
9
9
10
10
10
9
8
8
8

Chance of Frost

Temperature (°C)

18
17
17
17
17
16
16
15
14
14
14
16
17
19
21
22
23
24
23
23
23
23
22
21

Feels Like (°C)

17
18
17
17
17
16
15
14
14
13
15
15
17
19
21
23
24
24
22
22
22
22
22
22

Dew Point (°C)

13
13
13
14
13
12
12
13
13
12
13
12
12
12
13
13
13
12
13
14
14
15
16
18

Relative Humidity (%)

71
76
78
81
81
78
79
86
90
89
89
80
70
62
60
57
52
49
53
56
56
61
70
81

Pressure (mb)

1023
1023
1023
1023
1023
1023
1022
1022
1023
1023
1023
1023
1023
1023
1023
1023
1022
1022
1021
1021
1020
1020
1020
1020

Ozone (du)

290
290
289
288
286
284
283
282
280
279
278
278
278
279
279
280
281
281
283
283
284
286
288
291

Monday 14

Waxing Crescent 21%

12:04

20:14

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

Sun - Rise: 06:36, Set: 19:15, Transit: 12:55. Moon - Rise: 12:04, Set: 20:14. Civil Dark: 19:49 - 06:02. Nautical Dark: 20:29 - 05:22. Astro Dark: 21:15 - 04:39

Total Clouds (% Sky Obscured)

75
72
44
49
64
66
53
100
63
99
83
64
43
42
49
56
62
78
87
75
26
40
9
4

Low Clouds (% Sky Obscured)

51
54
44
49
57
58
38
41
48
46
31
24
16
16
22
35
55
70
73
67
10
5
3
1

Medium Clouds (% Sky Obscured)

59
49
0
0
6
3
8
94
12
97
83
64
43
42
49
54
13
15
75
75
13
7
5
2

High Clouds (% Sky Obscured)

3
0
2
1
28
57
53
78
63
93
67
41
24
0
0
0
0
2
2
0
2
33
0
0

ISS Passover

Visibility (miles)

9
4
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
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 (%)

24
19
6
0
0
0
0
0
2
1
3
6
8
11
13
14
32
28
20
14
15
14
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
91
93
95
96
95
92
92
90
90
90
86
82
73
61
54
50
74
80
82
82
70
68
78

Pressure (mb)

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

Ozone (du)

295
296
293
292
292
292
290
288
288
289
289
289
291
293
294
296
301
305
307
309
314
319
323
330

Tuesday 15

Waxing Crescent 30%

13:20

20:39

21 Good
22 Good
23 OK
00 OK
01 OK
02 OK
03 OK
04 OK
05 OK
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

Sun - Rise: 06:38, Set: 19:12, Transit: 12:55. Moon - Rise: 13:20, Set: 20:39. Civil Dark: 19:46 - 06:04. Nautical Dark: 20:26 - 05:24. Astro Dark: 21:12 - 04:41

Total Clouds (% Sky Obscured)

0
12
24
35
33
33
35
34
31
79
81
89
90
65
64
53
62
70
81
86
91
98
98
99

Low Clouds (% Sky Obscured)

0
7
15
25
27
31
35
32
31
79
81
86
72
20
33
20
34
47
61
69
78
85
65
46

Medium Clouds (% Sky Obscured)

0
2
2
2
1
0
0
0
0
0
0
0
0
2
7
13
11
12
9
20
20
14
28
53

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
22
44
65
44
27
10
23
31
43
52
58
54
67
77

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
1
1
1
5
4
2
4
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
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
13
13
13
12
12
12
12
12
12
12
13
14
15
16
17
17
18
18
18
17
17
16
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
70
74
79
84
86
86
86
86
88
81
69
69
59
54
49
44
46
48
51
52
55
58
58

Pressure (mb)

1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1020
1020
1020
1021
1021
1020
1020
1020
1020
1019
1019
1019
1019
1019

Ozone (du)

334
336
335
337
338
334
334
336
337
339
341
345
346
345
334
326
324
320
317
314
311
309
306
304

Wednesday 16

Waxing Crescent 39%

14:30

No Set

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
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 06:39, Set: 19:10, Transit: 12:55. Moon - Rise: 14:30, Set: No Set. Civil Dark: 19:44 - 06:06. Nautical Dark: 20:24 - 05:25. Astro Dark: 21:09 - 04:43

Total Clouds (% Sky Obscured)

99
97
98
97
99
97
96
97
97
97
98
99
100
88
77
66
73
87
99
96
93
92
76
60

Low Clouds (% Sky Obscured)

25
20
14
8
11
14
17
41
65
89
96
98
100
73
47
20
16
12
8
27
46
65
45
27

Medium Clouds (% Sky Obscured)

77
74
71
68
74
81
87
91
94
97
75
54
44
30
16
2
12
21
30
40
60
84
64
45

High Clouds (% Sky Obscured)

89
75
62
50
66
57
35
33
33
42
23
19
14
35
51
58
72
82
99
95
92
88
58
29

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
12
17
21
29
34
38
36
32
25
24
23
22
19
12
2
5
7

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

59
59
63
69
73
77
81
87
86
86
84
81
78
75
60
50
40
41
42
42
47
53
59
63

Pressure (mb)

1019
1018
1018
1017
1017
1016
1015
1015
1014
1013
1013
1012
1012
1012
1012
1012
1011
1011
1011
1011
1011
1011
1011
1011

Ozone (du)

302
300
301
302
304
303
302
301
302
304
305
307
308
310
309
309
309
310
312
313
315
317
319
321

Thursday 17

Waxing Crescent 49%

15:29

21:14

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

Sun - Rise: 06:41, Set: 19:08, Transit: 12:54. Moon - Rise: 15:29, Set: 21:14. Civil Dark: 19:41 - 06:07. Nautical Dark: 20:21 - 05:27. Astro Dark: 21:06 - 04:45

Total Clouds (% Sky Obscured)

43
31
19
7
21
36
53
67
79
90
68
47
33
57
75
97
98
99
100
100
100
100

Low Clouds (% Sky Obscured)

8
7
6
5
5
5
5
5
8
14
15
17
16
16
16
16
39
61
77
70
63
56

Medium Clouds (% Sky Obscured)

28
19
9
0
0
0
0
0
0
0
0
0
0
1
1
2
3
5
7
36
63
91

High Clouds (% Sky Obscured)

0
0
1
1
15
32
53
62
51
47
39
47
33
57
75
93
95
95
95
97
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
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
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
1
10
13
13
12
9
4

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
12
11
11
10
10
10
10
10
10
9
11
12
14
15
16
17
18
18
18
17
16

Feels Like (°C)

9
9
9
9
8
8
7
7
7
8
7
5
6
7
8
7
8
13
13
13
13
13

Dew Point (°C)

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

Relative Humidity (%)

68
72
73
77
78
80
80
80
80
81
80
71
63
56
52
50
46
48
49
50
54
59

Pressure (mb)

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

Ozone (du)

322
323
320
316
312
312
312
312
312
312
312
313
314
315
313
310
308
306
304
302
302
303

Forecast for Welwyn Garden City, Hertfordshire, United Kingdom (51.80,-0.21)

Generated: 11/09/26 21:43:45. Forecast: 11/09/26 to 17/09/26. Timezone: UTC+1.00