Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 12

New Moon 1%

06:26

20:30

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

Sun - Rise: 05:43, Set: 20:29, Transit: 13:05. Moon - Rise: 06:26, Set: 20:30. Civil Dark: 21:08 - 05:05. Nautical Dark: 21:57 - 04:16. Astro Dark: 22:59 - 03:15

Total Clouds (% Sky Obscured)

2
6
6
16
6
0
0
2
1
0
0
0
17
0
0
2
2
3
18
25
47
22
21
18

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

2
6
6
11
4
0
0
1
0
0
0
0
0
0
0
0
0
2
14
10
30
15
19
9

High Clouds (% Sky Obscured)

2
0
0
0
0
0
0
0
1
0
0
0
15
0
0
2
2
0
0
11
20
4
4
3

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)

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

Chance of Frost

Temperature (°C)

31
29
26
24
22
21
20
19
19
18
18
18
17
18
22
25
28
30
32
34
35
36
36
36

Feels Like (°C)

30
28
24
22
22
20
19
18
18
18
18
18
18
20
23
26
28
30
32
33
33
33
33
33

Dew Point (°C)

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

Relative Humidity (%)

20
22
30
40
43
44
44
45
45
46
47
49
50
47
39
32
25
20
17
15
14
14
14
15

Pressure (mb)

1021
1022
1022
1022
1023
1023
1023
1023
1022
1022
1021
1021
1021
1021
1021
1021
1021
1020
1020
1019
1019
1018
1018
1017

Ozone (du)

304
303
302
302
302
303
304
304
305
305
305
304
304
303
303
302
303
303
303
302
302
301
300
301

Thursday 13

Waxing Crescent 4%

07:52

20:45

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

Sun - Rise: 05:44, Set: 20:27, Transit: 13:05. Moon - Rise: 07:52, Set: 20:45. Civil Dark: 21:06 - 05:07. Nautical Dark: 21:55 - 04:18. Astro Dark: 22:55 - 03:19

Total Clouds (% Sky Obscured)

31
62
35
12
53
67
33
62
100
0
2
4
46
97
72
100
100
87
75
94
92
78
56
63

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
2
8
17
15
6
13

Medium Clouds (% Sky Obscured)

4
10
0
0
0
0
0
0
0
0
0
0
0
0
15
17
19
21
26
20
29
31
34
35

High Clouds (% Sky Obscured)

28
58
35
12
53
64
33
62
100
0
2
4
46
97
61
100
100
87
74
91
89
67
26
63

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
1
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)

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

Chance of Frost

Temperature (°C)

35
34
32
29
26
24
23
22
21
20
20
19
19
20
21
23
25
27
28
29
30
31
31
31

Feels Like (°C)

33
32
31
28
26
22
22
20
19
19
21
20
20
19
20
21
23
25
26
28
28
29
30
30

Dew Point (°C)

6
6
8
8
8
8
10
11
11
11
13
14
14
14
13
12
10
10
8
8
8
8
8
9

Relative Humidity (%)

16
17
22
28
31
36
42
48
53
57
64
70
73
69
57
48
39
33
28
25
24
24
24
24

Pressure (mb)

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

Ozone (du)

301
300
299
300
300
301
302
304
306
307
306
305
305
306
307
307
306
305
305
304
304
304
304
303

Friday 14

Waxing Crescent 10%

09:14

20:58

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
17 Bad

Sun - Rise: 05:46, Set: 20:25, Transit: 13:05. Moon - Rise: 09:14, Set: 20:58. Civil Dark: 21:03 - 05:08. Nautical Dark: 21:52 - 04:20. Astro Dark: 22:51 - 03:22

Total Clouds (% Sky Obscured)

59
69
75
63
71
83
89
80
76
92
85
100
100
100
100
100
100
69
64
61
59
59
61
65

Low Clouds (% Sky Obscured)

13
17
10
19
23
25
33
37
41
52
53
43
43
31
32
28
41
53
64
46
59
59
61
65

Medium Clouds (% Sky Obscured)

28
27
36
38
26
19
22
27
22
33
21
26
25
21
19
18
21
6
3
3
2
0
0
0

High Clouds (% Sky Obscured)

59
69
70
37
65
78
84
72
34
35
41
100
100
100
100
100
100
38
30
29
29
2
1
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
3
8
8
7
6
10
13
4
11
9
24
18
5
1
1
1
2
7
0
0
3
1
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
10
14
10
12
13
13
12
11
11
10
10
9
9
10
11
11
11
12
12
10
10
9
8

Chance of Frost

Temperature (°C)

30
29
27
25
24
22
20
19
19
19
18
17
17
17
18
19
21
22
23
23
24
25
25
24

Feels Like (°C)

29
28
25
25
23
21
18
18
18
16
15
15
15
14
15
16
18
20
21
20
22
22
23
23

Dew Point (°C)

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

Relative Humidity (%)

26
29
42
53
64
64
64
63
64
65
66
68
71
69
65
60
56
53
56
63
56
53
57
53

Pressure (mb)

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

Ozone (du)

303
303
304
304
305
305
305
306
306
307
308
309
311
313
313
313
314
314
313
314
316
318
320
320

Saturday 15

Waxing Crescent 18%

10:34

21:10

18 OK
19 OK
20 Bad
21 Bad
22 Bad
23 Bad
00 OK
01 OK
02 OK
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 OK
17 OK

Sun - Rise: 05:48, Set: 20:23, Transit: 13:05. Moon - Rise: 10:34, Set: 21:10. Civil Dark: 21:01 - 05:10. Nautical Dark: 21:49 - 04:22. Astro Dark: 22:48 - 03:25

Total Clouds (% Sky Obscured)

36
38
78
85
44
37
26
34
44
55
56
68
62
66
70
74
83
82
62
85
75
53
40
31

Low Clouds (% Sky Obscured)

36
29
57
49
19
21
18
26
37
44
52
63
60
64
70
73
73
63
38
52
40
19
11
11

Medium Clouds (% Sky Obscured)

0
4
7
7
4
2
0
0
0
0
0
1
1
3
0
0
6
13
19
17
15
13
10
8

High Clouds (% Sky Obscured)

0
0
0
0
0
3
10
4
2
3
4
37
56
10
21
11
21
37
40
43
43
45
30
13

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
1
3
13
8
11
2
2
1
0
0
0
0
2
3
0
0
9
2
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
7
6
4
8
11
8
5
5
5
6
5
5
5
5
5
5
5
5
5
7
7
7
5

Chance of Frost

Temperature (°C)

24
24
22
21
21
19
17
16
16
15
15
15
15
15
16
18
19
20
22
23
23
24
24
24

Feels Like (°C)

23
24
23
21
19
17
16
16
17
16
16
14
14
14
16
17
18
18
20
23
21
22
23
25

Dew Point (°C)

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

Relative Humidity (%)

56
56
61
63
59
58
62
71
79
87
93
96
92
86
82
77
68
58
48
40
38
37
35
32

Pressure (mb)

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

Ozone (du)

320
320
320
320
320
319
318
318
318
318
319
320
321
321
323
325
326
328
330
330
331
331
333
336

Sunday 16

Waxing Crescent 27%

11:52

21:21

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

Sun - Rise: 05:49, Set: 20:21, Transit: 13:04. Moon - Rise: 11:52, Set: 21:21. Civil Dark: 20:59 - 05:12. Nautical Dark: 21:47 - 04:24. Astro Dark: 22:44 - 03:28

Total Clouds (% Sky Obscured)

16
26
16
17
16
42
25
20
15
13
14
4
19
76
64
56
67
79
86
89
94
100
100
100

Low Clouds (% Sky Obscured)

5
15
1
0
0
0
0
0
0
0
0
0
0
2
4
5
34
63
86
88
89
88
91
91

Medium Clouds (% Sky Obscured)

7
8
8
7
3
3
0
0
0
13
14
4
6
12
19
26
36
49
60
68
76
76
78
88

High Clouds (% Sky Obscured)

0
0
0
0
2
42
25
20
15
13
14
2
19
76
64
51
50
45
40
54
74
100
100
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
7
5
3
5

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
Very Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
36
59
82
82
74

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

3
3
3
4
5
6
5
5
4
4
4
4
4
3
5
6
8
9
9
11
11
11
11
11

Chance of Frost

Temperature (°C)

24
24
22
20
18
17
16
15
15
14
13
13
13
14
16
18
20
20
21
21
21
20
20
20

Feels Like (°C)

25
25
22
20
19
17
14
13
12
12
11
12
12
12
13
14
15
16
18
20
19
19
18
18

Dew Point (°C)

6
5
5
6
7
8
8
8
8
9
8
9
9
9
9
9
9
9
10
11
13
15
17
18

Relative Humidity (%)

30
29
33
39
49
55
59
64
66
69
71
75
77
72
63
55
47
48
49
50
60
71
84
86

Pressure (mb)

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

Ozone (du)

337
336
327
324
322
321
320
318
319
321
315
311
309
308
308
307
307
306
306
305
305
306
306
306

Monday 17

Waxing Crescent 36%

13:09

21:35

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
17 Bad

Sun - Rise: 05:51, Set: 20:19, Transit: 13:04. Moon - Rise: 13:09, Set: 21:35. Civil Dark: 20:57 - 05:14. Nautical Dark: 21:44 - 04:27. Astro Dark: 22:41 - 03:31

Total Clouds (% Sky Obscured)

100
100
100
100
99
98
97
97
97
96
94
93
93
91
88
87
74
62
49
51
52
55
50
49

Low Clouds (% Sky Obscured)

90
95
95
95
99
98
96
84
76
69
69
68
65
69
75
83
68
51
36
27
18
10
15
21

Medium Clouds (% Sky Obscured)

94
85
74
65
49
34
28
27
22
22
17
16
19
16
13
11
12
16
17
18
15
19
17
13

High Clouds (% Sky Obscured)

100
100
100
100
69
37
17
29
42
55
50
44
42
29
13
1
1
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

7
9
9
9
8
8
7
6
7
8
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

53
40
31
22
24
26
29
32
32
32
26
19
6
7
7
7
6
3
0
0
0
0
0
0

Precipitation Amount (mm)

0.2
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)

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

Chance of Frost

Temperature (°C)

20
21
20
20
20
20
19
19
19
18
18
17
17
17
19
20
21
23
25
27
28
28
29
29

Feels Like (°C)

18
18
17
17
16
16
16
15
19
18
18
18
18
18
17
17
18
18
19
20
25
25
25
25

Dew Point (°C)

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

Relative Humidity (%)

88
91
92
95
96
96
95
93
95
95
95
93
93
90
80
71
63
55
47
41
39
37
36
36

Pressure (mb)

1016
1015
1015
1015
1015
1015
1015
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014

Ozone (du)

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

Tuesday 18

Waxing Crescent 34%

14:25

21:51

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

Sun - Rise: 05:52, Set: 20:17, Transit: 13:04. Moon - Rise: 14:25, Set: 21:51. Civil Dark: 20:54 - 05:16. Nautical Dark: 21:42 - 04:29. Astro Dark: 22:37 - 03:34

Total Clouds (% Sky Obscured)

50
49
42
39
22
16
10
19
31
44
59
76
89
91
92
93
85
78
70

Low Clouds (% Sky Obscured)

31
30
30
30
20
10
0
7
13
20
40
58
77
82
86
90
82
73
67

Medium Clouds (% Sky Obscured)

11
12
15
16
15
11
8
15
20
24
23
26
25
33
42
49
52
56
59

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
1
2
4
7
17
31
47
46
46
38

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
6
5
4
4

Fog (%)

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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
2
2
1
1
0
0
0
0
12
21
31
51
70
86
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.5
0.8
1.1
1.6

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

29
29
27
25
24
23
22
21
21
20
20
20
20
20
20
20
20
21
22

Feels Like (°C)

25
25
25
25
25
25
24
23
20
20
21
20
19
19
19
19
18
19
19

Dew Point (°C)

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

Relative Humidity (%)

36
36
41
48
55
60
65
70
76
84
91
89
89
88
89
91
91
88
85

Pressure (mb)

1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1014
1014
1013
1013
1013

Ozone (du)

303
302
302
301
300
300
300
299
301
303
305
307
310
313
313
313
312
314
316

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

Generated: 12/08/26 18:23:41. Forecast: 12/08/26 to 18/08/26. Timezone: UTC+1.00