Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 9

Waning Crescent 1%

05:24

19:04

20 OK
21 OK
22 OK
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
12 Bad
13 OK
14 OK
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 06:28, Set: 19:26, Transit: 12:57. Moon - Rise: 05:24, Set: 19:04. Civil Dark: 20:03 - 05:54. Nautical Dark: 20:44 - 05:13. Astro Dark: 21:29 - 04:28

Total Clouds (% Sky Obscured)

24
22
48
53
38
70
85
54
100
100
100
100
100
100
100
76
72
25
30
69
100
100
100
100

Low Clouds (% Sky Obscured)

24
22
44
52
38
42
45
19
20
27
12
20
25
10
15
13
12
13
0
30
27
71
40
62

Medium Clouds (% Sky Obscured)

2
6
0
0
0
0
0
0
0
0
0
0
0
22
14
75
5
17
6
15
59
78
82
98

High Clouds (% Sky Obscured)

0
0
0
2
0
33
50
52
100
100
100
100
100
100
100
35
35
0
13
24
100
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
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
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
0
0

Wind Speed/Direction (mph)

4
2
3
1
2
2
1
2
2
3
3
4
4
5
6
8
9
10
10
10
10
12
12
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
68
69
71
72
74
76
76
79
80
83
83
77
70
63
61
55
49
42
40
42
49
64
67

Pressure (mb)

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

Ozone (du)

330
328
324
321
319
314
314
312
310
309
308
308
307
309
308
308
311
317
316
313
310
307
306
305

Thursday 10

Waning Crescent 0%

06:48

19:16

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

Sun - Rise: 06:30, Set: 19:24, Transit: 12:57. Moon - Rise: 06:48, Set: 19:16. Civil Dark: 19:58 - 05:56. Nautical Dark: 20:42 - 05:14. Astro Dark: 21:26 - 04:31

Total Clouds (% Sky Obscured)

100
100
100
99
100
100
82
76
47
45
63
75
68
44
60
61
78
100
100
77
85
44
38
31

Low Clouds (% Sky Obscured)

57
93
78
92
100
100
71
70
44
31
63
75
68
24
19
15
12
28
29
23
33
35
20
23

Medium Clouds (% Sky Obscured)

95
100
100
80
30
30
30
10
0
7
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
7
0
0
0
0
0
0
0
0
0
31
60
61
78
100
100
37
39
4
7
7

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

35
82
95
95
65
36
14
11
7
3
5
0
0
0
0
0
1
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0.3
0.5
2.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
13
13
13
13
12
13
14
14
14
15
13
14
15
17
18
18
18
17
18
18
18
19
19

Dew Point (°C)

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

Relative Humidity (%)

65
71
74
82
86
84
89
93
95
95
95
92
86
79
68
59
53
48
45
44
45
45
48
55

Pressure (mb)

1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1017
1018
1019
1019
1020
1020
1020
1020
1020
1021
1021
1021

Ozone (du)

308
309
314
315
316
316
316
313
314
314
315
315
314
317
315
314
312
311
309
306
303
301
299
297

Friday 11

New Moon 2%

08:08

19:28

20 Bad
21 Bad
22 OK
23 Bad
00 OK
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 OK
08 OK
09 OK
10 OK
11 Bad
12 Bad
13 Bad
14 OK
15 Bad
16 Bad
17 Bad
18 Bad
19 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: 20:39 - 05:16. Astro Dark: 21:23 - 04:33

Total Clouds (% Sky Obscured)

77
78
25
59
41
79
65
72
83
66
49
46
32
46
46
65
63
64
40
69
77
64
93
93

Low Clouds (% Sky Obscured)

20
23
14
13
28
34
18
14
13
9
0
0
0
11
20
20
2
17
11
34
48
41
71
73

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
4
4
0
16
13
9
36
11
18
19
64
14
13
13
9
10
10

High Clouds (% Sky Obscured)

45
42
5
25
5
15
5
28
60
45
41
39
23
11
3
25
36
2
0
12
2
2
2
1

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
4
10
4
6
8
8

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

59
62
64
67
68
72
79
84
84
83
81
81
75
66
58
51
53
54
50
47
51
58
59
64

Pressure (mb)

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

Ozone (du)

296
295
294
295
295
294
293
292
291
291
291
292
292
293
293
294
295
296
296
296
296
297
298
298

Saturday 12

Waxing Crescent 7%

09:28

19:41

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
18 Bad
19 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: 20:37 - 05:18. Astro Dark: 21:20 - 04:35

Total Clouds (% Sky Obscured)

93
92
95
95
97
98
99
100
92
85
80
87
93
99
98
94
92
97
97
64
86
94
96
98

Low Clouds (% Sky Obscured)

71
67
75
74
27
26
27
57
32
33
32
38
49
43
40
65
87
87
81
39
36
34
27
26

Medium Clouds (% Sky Obscured)

7
12
12
82
51
63
96
100
46
54
76
84
69
53
86
66
16
13
10
6
9
8
6
3

High Clouds (% Sky Obscured)

1
9
29
34
44
63
81
100
82
65
52
63
75
85
37
13
0
60
79
43
75
89
96
86

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
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

6
0
19
13
1
23
22
22
52
62
51
74
52
19
20
12
9
0
1
0
1
1
2
1

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.4
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

13
14
14
14
14
14
14
14
14
14
15
14
14
14
13
12
11
11
11
12
10
10
11
13

Relative Humidity (%)

65
73
79
81
79
85
86
89
87
92
95
93
87
81
72
63
57
54
56
55
49
48
51
62

Pressure (mb)

1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

300
301
301
300
300
299
300
301
302
302
303
305
308
309
311
313
309
305
302
300
296
294
292
291

Sunday 13

Waxing Crescent 13%

10:46

19:55

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
18 Bad
19 Bad

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: 20:34 - 05:20. Astro Dark: 21:17 - 04:37

Total Clouds (% Sky Obscured)

97
96
95
93
81
88
96
100
100
100
99
88
84
78
72
65
56
60
67
73
70
67
59
59

Low Clouds (% Sky Obscured)

26
26
26
28
25
23
24
25
25
25
22
39
39
44
39
35
34
39
44
51
45
37
29
20

Medium Clouds (% Sky Obscured)

4
96
71
93
69
33
5
5
5
4
1
2
2
2
1
1
0
0
0
0
0
0
0
5

High Clouds (% Sky Obscured)

72
54
44
27
13
47
76
100
100
100
98
39
52
49
36
23
9
8
7
6
17
34
53
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 (%)

1
0
3
4
0
0
0
0
0
1
0
0
1
1
2
1
1
4
8
16
17
14
7
10

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

18
17
17
17
17
17
16
16
16
15
15
15
15
15
15
15
16
16
24
23
22
22
23
24

Dew Point (°C)

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

Relative Humidity (%)

65
69
65
68
71
72
74
77
81
82
83
83
79
77
73
67
62
57
54
53
50
55
61
67

Pressure (mb)

1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1022
1021
1021
1021
1021
1020
1020
1020
1020
1019

Ozone (du)

290
289
289
288
286
285
283
281
281
280
280
280
279
277
276
275
275
275
274
274
273
274
274
275

Monday 14

Waxing Crescent 21%

12:04

19:55

20 Bad
21 OK
22 OK
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 OK
13 OK
14 OK
15 OK
16 OK
17 OK
18 OK
19 OK

Sun - Rise: 06:36, Set: 19:15, Transit: 12:55. Moon - Rise: 12:04, Set: 19:55. Civil Dark: 19:49 - 06:02. Nautical Dark: 20:32 - 05:22. Astro Dark: 21:15 - 04:39

Total Clouds (% Sky Obscured)

51
36
41
46
54
49
45
44
63
69
76
72
73
73
61
48
36
35
35
35
31
27
23
47

Low Clouds (% Sky Obscured)

13
4
3
4
0
0
0
4
4
4
8
10
8
8
7
7
5
5
5
7
10
11
13
15

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

51
36
41
46
54
39
22
5
16
25
29
32
30
33
26
20
16
14
11
10
5
3
1
30

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

Precipitation Probability (%)

9
2
4
4
2
3
3
0
6
18
30
58
74
81
66
43
2
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
78
83
85
86
88
89
89
90
92
93
95
85
78
71
63
58
52
49
47
45
50
54
58

Pressure (mb)

1020
1020
1020
1020
1020
1019
1019
1019
1019
1019
1018
1018
1018
1019
1019
1019
1019
1019
1018
1018
1018
1018
1018
1019

Ozone (du)

278
281
284
285
285
286
286
286
286
284
282
279
279
279
279
278
277
276
275
275
274
276
277
279

Tuesday 15

Waxing Crescent 30%

13:20

20:14

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

Sun - Rise: 06:38, Set: 19:12, Transit: 12:55. Moon - Rise: 13:20, Set: 20:14. Civil Dark: 19:46 - 06:04. Nautical Dark: 20:29 - 05:24. Astro Dark: 21:12 - 04:41

Total Clouds (% Sky Obscured)

71
95
79
64
49
44
39
32
45
56
59
53
43
31
37
45
52

Low Clouds (% Sky Obscured)

19
23
22
23
19
16
10
8
7
7
5
6
7
7
11
15
18

Medium Clouds (% Sky Obscured)

16
24
29
33
34
33
31
27
19
11
5
12
19
27
24
21
19

High Clouds (% Sky Obscured)

58
87
68
47
26
20
10
5
33
56
59
53
28
1
1
0
0

ISS Passover

Visibility (miles)

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

Precipitation Type

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
1
2
2
9
18
22
36
36
22

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

19
19
19
19
18
18
14
14
14
14
13
13
13
13
14
14
15

Dew Point (°C)

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

Relative Humidity (%)

62
64
67
67
68
70
74
78
84
83
82
80
69
60
51
49
47

Pressure (mb)

1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1020
1020
1020

Ozone (du)

283
287
291
292
293
294
296
298
300
300
300
299
300
302
303
304
306

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

Generated: 09/09/26 20:06:56. Forecast: 09/09/26 to 15/09/26. Timezone: UTC+1.00