Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 22

Waxing Gibbous 85%

17:36

02:38

09 OK
10 OK
11 OK
12 OK
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

Sun - Rise: 06:49, Set: 18:58, Transit: 12:53. Moon - Rise: 17:36, Set: 02:38. Civil Dark: 19:32 - 06:16. Nautical Dark: 20:12 - 05:36. Astro Dark: 20:53 - 04:55

Total Clouds (% Sky Obscured)

26
26
28
45
58
66
74
81
90
90
91
93
91
93
100
100
100
100
95
96
96
99
100
99

Low Clouds (% Sky Obscured)

26
26
28
45
55
63
64
63
70
71
74
75
71
72
84
85
87
84
84
85
88
88
85
56

Medium Clouds (% Sky Obscured)

22
24
21
20
15
11
12
10
13
17
18
18
20
26
30
30
27
25
25
25
25
24
29
32

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
2
0
2
0
0
53
100
100
100
36
29
35
86
100
88

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
1
2
3
3
1
3
4
3
2
1
1
1
0
1
1
3
4
4
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

19
21
22
23
23
23
23
23
23
22
21
20
18
17
17
16
16
16
16
16
15
15
14
15

Dew Point (°C)

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

Relative Humidity (%)

74
69
63
61
56
55
53
54
53
56
57
58
61
63
64
65
66
64
64
65
65
66
68
68

Pressure (mb)

1030
1030
1030
1030
1029
1029
1028
1028
1027
1027
1027
1027
1027
1026
1026
1026
1026
1025
1025
1024
1024
1024
1024
1024

Ozone (du)

269
269
268
268
268
270
271
274
275
276
276
277
277
277
277
277
278
278
278
279
280
281
282
283

Wednesday 23

Waxing Gibbous 92%

17:51

03:55

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

Sun - Rise: 06:51, Set: 18:56, Transit: 12:53. Moon - Rise: 17:51, Set: 03:55. Civil Dark: 19:30 - 06:17. Nautical Dark: 20:09 - 05:38. Astro Dark: 20:50 - 04:57

Total Clouds (% Sky Obscured)

55
78
88
78
36
80
85
89
50
29
20
55
94
100
98
99
100
97
98
87
89
61
65
84

Low Clouds (% Sky Obscured)

32
58
78
74
34
66
70
85
39
25
5
22
21
14
9
28
19
10
7
5
1
0
0
0

Medium Clouds (% Sky Obscured)

26
33
23
14
18
12
8
0
0
0
0
0
0
0
0
0
0
7
6
7
12
61
21
5

High Clouds (% Sky Obscured)

48
7
0
0
12
1
4
36
7
13
14
30
86
100
97
97
100
94
95
64
68
25
17
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 (%)

2
6
9
17
43
27
11
2
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
8
9
10
10
12
11
10
12
12
10
9
7
7
6
5
4
4
4
4
3
4
4
3

Chance of Frost

Temperature (°C)

17
18
19
20
22
20
20
20
19
18
16
15
14
13
12
12
11
11
10
10
10
9
9
10

Feels Like (°C)

16
18
18
18
20
20
18
19
17
15
15
14
12
12
11
10
9
9
9
8
8
8
7
8

Dew Point (°C)

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

Relative Humidity (%)

68
66
56
53
50
46
47
52
52
61
61
63
69
80
87
87
87
87
87
85
85
87
87
81

Pressure (mb)

1024
1023
1023
1023
1022
1022
1022
1022
1022
1023
1023
1024
1025
1025
1026
1026
1026
1027
1026
1026
1026
1026
1026
1026

Ozone (du)

285
285
286
290
294
295
296
295
296
296
297
296
297
295
294
293
291
290
291
290
289
287
286
287

Thursday 24

Waxing Gibbous 97%

18:04

05:13

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 Good
01 Good
02 Good
03 Good
04 Good
05 Good
06 Good
07 Good
08 Good

Sun - Rise: 06:52, Set: 18:54, Transit: 12:52. Moon - Rise: 18:04, Set: 05:13. Civil Dark: 19:27 - 06:19. Nautical Dark: 20:07 - 05:39. Astro Dark: 20:48 - 04:59

Total Clouds (% Sky Obscured)

61
86
81
100
99
98
100
96
100
100
82
57
85
67
52
5
18
3
0
0
1
0
4
7

Low Clouds (% Sky Obscured)

0
4
0
21
11
3
11
5
0
0
5
0
7
2
13
0
0
0
0
0
0
0
4
7

Medium Clouds (% Sky Obscured)

0
0
0
0
4
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

43
71
73
100
98
95
99
89
100
100
82
57
85
67
52
1
9
2
0
0
1
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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
70
65
60
58
54
51
52
55
62
71
74
78
82
83
83
81
81
81
83
85
85
85
80

Pressure (mb)

1026
1026
1026
1026
1025
1024
1023
1023
1023
1022
1022
1023
1023
1023
1022
1022
1022
1021
1021
1020
1020
1020
1020
1020

Ozone (du)

286
284
282
281
280
280
280
281
281
281
280
281
281
281
280
280
280
280
281
281
281
283
283
283

Friday 25

Waxing Gibbous 99%

18:16

06:31

09 Good
10 Good
11 Good
12 Good
13 OK
14 OK
15 OK
16 OK
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 OK

Sun - Rise: 06:54, Set: 18:51, Transit: 12:52. Moon - Rise: 18:16, Set: 06:31. Civil Dark: 19:25 - 06:20. Nautical Dark: 20:04 - 05:41. Astro Dark: 20:45 - 05:00

Total Clouds (% Sky Obscured)

9
10
9
10
20
28
33
41
52
64
64
68
97
98
99
98
94
100
100
86
74
61
50
43

Low Clouds (% Sky Obscured)

9
10
9
10
17
27
30
30
34
32
26
24
22
23
23
21
25
27
27
24
64
61
50
43

Medium Clouds (% Sky Obscured)

0
0
0
0
4
4
4
1
1
1
3
6
12
17
13
18
23
24
30
27
13
3
50
43

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
25
52
64
64
61
70
80
89
97
90
100
100
82
67
50
45
43

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
Very Light Rain
Very Light Rain
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
2
3
1
28
47
61
57
46
18
6
1

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
16
18
20
22
23
24
24
23
22
21
20
18
17
16
15
14
14
13
13
12
12
11
12

Feels Like (°C)

16
18
19
20
21
21
22
22
21
21
20
20
19
16
15
14
12
12
10
10
9
9
8
9

Dew Point (°C)

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

Relative Humidity (%)

70
61
53
48
44
39
36
36
38
43
50
53
56
58
59
62
69
78
84
86
93
89
87
86

Pressure (mb)

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

Ozone (du)

283
283
284
283
283
282
282
284
285
286
285
285
283
282
281
280
279
280
281
281
280
279
280
282

Saturday 26

Full Moon 100%

18:27

07:52

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

Sun - Rise: 06:55, Set: 18:49, Transit: 12:52. Moon - Rise: 18:27, Set: 07:52. Civil Dark: 19:23 - 06:22. Nautical Dark: 20:02 - 05:43. Astro Dark: 20:43 - 05:02

Total Clouds (% Sky Obscured)

40
40
45
53
58
62
66
63
60
52
40
43
41
33
29
25
36
49
58
56
53
42
30
19

Low Clouds (% Sky Obscured)

39
32
25
53
58
62
61
13
8
2
3
4
6
4
2
0
2
5
7
8
8
9
11
10

Medium Clouds (% Sky Obscured)

40
40
45
53
58
62
66
58
35
4
0
0
0
0
3
25
36
49
58
40
31
19
16
9

High Clouds (% Sky Obscured)

40
40
30
30
35
35
30
25
20
25
20
20
20
25
25
25
35
45
45
32
23
21
13
6

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
4
2
13
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
11
12
13
14
15
16
17
17
16
15
14
13
12
11
9
8
8
8
8
9
9
9
10

Dew Point (°C)

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

Relative Humidity (%)

84
78
70
66
71
73
66
60
57
60
63
65
63
60
57
56
57
62
67
74
76
78
80
72

Pressure (mb)

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

Ozone (du)

281
282
283
285
288
292
293
294
296
298
298
298
297
297
296
295
295
295
296
297
298
299
300
299

Sunday 27

Waning Gibbous 98%

18:40

No Set

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

Sun - Rise: 06:57, Set: 18:47, Transit: 12:51. Moon - Rise: 18:40, Set: No Set. Civil Dark: 19:20 - 06:24. Nautical Dark: 19:59 - 05:45. Astro Dark: 20:40 - 05:04

Total Clouds (% Sky Obscured)

8
9
5
5
0
5
5
6
16
36
61
80
100
88
76
65
83
90
100
95
89
86
91
95

Low Clouds (% Sky Obscured)

8
9
5
5
0
5
5
5
6
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

2
0
0
0
0
0
0
0
0
0
5
10
24
16
8
0
10
19
29
15
11
5
3
2

High Clouds (% Sky Obscured)

0
9
5
5
0
5
5
6
16
36
61
80
100
78
60
54
70
90
100
95
89
86
91
95

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

Precipitation Probability (%)

0
11
26
41
68
79
66
40
15
4
12
7
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
12
13
13
13
20
19
18
19
20
20
16
15
15
14
13
12
9
9
9
9
9
8
9

Dew Point (°C)

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

Relative Humidity (%)

65
59
52
46
41
39
37
34
38
40
45
48
52
56
59
61
64
64
64
65
66
68
69
63

Pressure (mb)

1016
1016
1016
1015
1014
1014
1013
1013
1013
1013
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016

Ozone (du)

299
299
298
298
298
298
299
299
298
298
297
299
301
303
303
302
302
302
302
301
301
301
301
302

Monday 28

Waning Gibbous 93%

18:56

09:17

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
03 Bad
04 Bad
05 Bad
06 OK

Sun - Rise: 06:59, Set: 18:45, Transit: 12:51. Moon - Rise: 18:56, Set: 09:17. Civil Dark: 19:18 - 06:25. Nautical Dark: 19:57 - 05:46. Astro Dark: 20:37 - 05:06

Total Clouds (% Sky Obscured)

100
97
95
92
93
96
100
100
100
100
100
100
100
92
86
83
81
74
66
57
40
33

Low Clouds (% Sky Obscured)

0
5
11
16
18
19
20
21
18
13
13
13
13
9
5
0
6
12
32
31
30
28

Medium Clouds (% Sky Obscured)

0
19
38
57
61
65
72
81
91
100
74
48
18
12
10
7
11
13
13
15
11
8

High Clouds (% Sky Obscured)

100
97
92
88
90
92
100
100
100
100
100
100
100
85
71
66
81
74
66
57
40
33

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
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

5
5
4
4
3
4
5
6
7
8
9
10
10
11
11
12
13
14
14
15
15
15

Relative Humidity (%)

58
52
47
43
39
40
41
42
48
55
62
67
73
79
83
86
90
92
93
95
95
95

Pressure (mb)

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

Ozone (du)

302
302
302
302
302
302
302
302
304
305
307
309
311
314
311
308
305
305
306
306
306
305

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

Generated: 22/09/26 09:09:09. Forecast: 22/09/26 to 28/09/26. Timezone: UTC+1.00