Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 13

Waning Crescent 12%

05:07

16:26

17 Bad
18 Bad
19 OK
20 OK
21 OK
22 OK
23 OK
00 Bad
01 OK
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: 06:15, Set: 20:03, Transit: 13:10. Moon - Rise: 05:07, Set: 16:26. Civil Dark: 20:39 - 05:40. Nautical Dark: 21:22 - 04:56. Astro Dark: 22:11 - 04:07

Total Clouds (% Sky Obscured)

61
52
23
18
14
35
14
56
29
45
67
80
86
67
77
85
97
97
97
100
100
100
100
99

Low Clouds (% Sky Obscured)

34
23
1
1
1
0
8
0
0
12
27
68
30
9
0
24
75
87
84
100
100
100
100
97

Medium Clouds (% Sky Obscured)

17
9
23
18
8
26
5
49
24
26
30
41
75
60
65
84
39
59
88
47
91
30
86
59

High Clouds (% Sky Obscured)

61
28
4
4
14
35
3
0
0
0
10
3
0
66
9
27
92
74
83
89
54
94
94
13

ISS Passover

Visibility (miles)

8
7
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 (%)

29
17
0
0
0
0
0
0
0
0
0
0
0
1
1
5
6
18
25
18
36
27
5
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)

7
7
6
5
4
4
4
5
4
4
4
4
4
5
5
6
9
10
11
12
13
13
12
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

64
74
84
90
91
91
90
91
91
91
91
93
91
91
91
87
87
85
83
87
86
88
91
92

Pressure (mb)

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

Ozone (du)

438
432
430
427
421
415
409
402
398
394
393
393
390
383
377
375
374
373
370
368
365
361
361
357

Tuesday 14

Waning Crescent 6%

05:19

No Set

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: 06:13, Set: 20:05, Transit: 13:10. Moon - Rise: 05:19, Set: No Set. Civil Dark: 20:40 - 05:37. Nautical Dark: 21:24 - 04:53. Astro Dark: 22:13 - 04:04

Total Clouds (% Sky Obscured)

99
100
97
99
100
100
100
97
100
100
100
100
100
100
98
99
87
96
100
100
100
84
58
45

Low Clouds (% Sky Obscured)

75
64
67
58
100
100
89
64
95
95
88
88
86
73
94
59
87
88
69
82
84
64
58
45

Medium Clouds (% Sky Obscured)

87
82
90
97
98
100
89
94
52
61
56
57
58
33
26
23
0
36
65
75
80
70
1
0

High Clouds (% Sky Obscured)

93
100
81
79
57
79
100
28
100
100
100
100
100
100
37
93
15
14
10
0
13
15
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
9
5
6
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
Very Light Rain
None
None
None
None
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

1
1
2
9
14
25
4
7
40
53
35
29
15
4
4
0
15
22
42
65
95
81
66
57

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.3
0
0
0
0
0
0
0
0
0
0.3
0.7
0.4
0.3
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

11
12
11
11
11
11
11
11
11
11
11
11
11
11
11
12
12
12
13
13
13
13
12
13

Relative Humidity (%)

89
92
92
93
95
93
93
93
93
93
93
92
92
93
93
92
93
90
85
89
86
87
87
85

Pressure (mb)

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

Ozone (du)

355
352
352
351
351
351
351
353
353
351
351
350
349
349
349
349
353
357
359
358
359
365
381
384

Wednesday 15

Waning Crescent 2%

05:32

17:49

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

Sun - Rise: 06:11, Set: 20:07, Transit: 13:10. Moon - Rise: 05:32, Set: 17:49. Civil Dark: 20:42 - 05:35. Nautical Dark: 21:26 - 04:51. Astro Dark: 22:16 - 04:01

Total Clouds (% Sky Obscured)

55
43
25
39
55
34
45
53
74
69
54
89
81
63
78
69
76
48
51
42
35
73
88
92

Low Clouds (% Sky Obscured)

55
43
25
36
49
34
40
51
59
62
54
69
64
63
62
57
52
29
51
13
10
10
8
5

Medium Clouds (% Sky Obscured)

0
0
0
2
3
0
3
0
6
0
4
41
4
0
0
5
0
0
3
0
3
3
3
51

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
5
6
30
40
2
45
25
38
18
2
35
22
73
88
92

ISS Passover

Visibility (miles)

5
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 (%)

28
18
1
0
0
0
1
2
2
9
5
11
6
0
5
0
0
9
7
7
7
25
23
27

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
14
14
13
11
9
9
8
8
7
8
8
6
6
8
7
9
9
10
12
11
13
12
12

Dew Point (°C)

13
12
11
11
10
10
10
9
9
8
8
8
8
8
8
8
8
8
7
6
6
6
8
8

Relative Humidity (%)

87
84
86
92
93
93
93
93
91
85
84
90
90
93
95
90
81
73
66
59
55
54
63
65

Pressure (mb)

1013
1013
1013
1014
1015
1015
1015
1015
1015
1015
1016
1016
1016
1017
1017
1018
1018
1018
1019
1019
1019
1019
1019
1019

Ozone (du)

388
392
392
395
397
395
395
392
390
384
383
382
381
382
381
378
375
373
371
369
365
363
363
362

Thursday 16

Waning Crescent 0%

05:46

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
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:08, Set: 20:08, Transit: 13:09. Moon - Rise: 05:46, Set: 19:15. Civil Dark: 20:44 - 05:33. Nautical Dark: 21:28 - 04:48. Astro Dark: 22:19 - 03:57

Total Clouds (% Sky Obscured)

96
100
100
100
100
100
100
100
83
87
59
47
56
56
48
53
49
97
98
98
98
98
98
98

Low Clouds (% Sky Obscured)

11
15
27
39
51
41
30
20
27
32
37
41
48
53
46
37
28
39
49
60
66
70
75
62

Medium Clouds (% Sky Obscured)

83
95
96
98
100
100
99
88
70
66
59
47
56
56
48
52
49
92
94
93
49
95
75
46

High Clouds (% Sky Obscured)

96
100
100
100
100
100
100
100
70
41
12
9
7
6
7
10
11
16
23
24
26
29
44
59

ISS Passover

Visibility (miles)

9
9
8
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 (%)

26
21
2
1
0
1
2
0
2
5
6
21
27
25
22
17
2
2
10
12
14
17
14
17

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
75
86
92
93
91
91
91
93
96
95
96
96
96
95
88
80
72
68
66
70
73
79
79

Pressure (mb)

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

Ozone (du)

362
361
358
358
361
361
364
366
364
363
362
360
359
358
357
356
357
357
357
355
356
355
355
357

Friday 17

New Moon 2%

06:04

20:45

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: 06:06, Set: 20:10, Transit: 13:09. Moon - Rise: 06:04, Set: 20:45. Civil Dark: 20:46 - 05:31. Nautical Dark: 21:30 - 04:46. Astro Dark: 22:21 - 03:54

Total Clouds (% Sky Obscured)

99
100
100
99
99
97
96
95
79
62
73
71
75
81
67
65
76
81
81
81
82
87
88
84

Low Clouds (% Sky Obscured)

50
38
39
41
42
43
43
46
62
62
73
71
70
56
67
65
76
68
61
59
57
60
62
61

Medium Clouds (% Sky Obscured)

47
53
82
89
84
85
55
50
55
59
61
57
50
47
5
0
0
5
10
20
30
35
35
30

High Clouds (% Sky Obscured)

84
87
98
97
95
76
25
3
17
40
58
64
68
65
45
65
75
81
74
55
59
65
65
40

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

Precipitation Probability (%)

21
8
21
14
11
5
7
12
19
22
22
26
28
13
66
69
68
82
85
71
57
42
26
22

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0.4
0.2
0.5
0.6
0.3
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
87
92
95
93
93
93
93
93
95
98
98
98
98
95
88
81
75
66
60
53
52
51
51

Pressure (mb)

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

Ozone (du)

358
357
354
357
362
367
376
387
391
389
391
392
396
398
397
396
395
394
395
396
396
396
395
395

Saturday 18

Waxing Crescent 7%

06:29

22:19

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

Sun - Rise: 06:04, Set: 20:12, Transit: 13:09. Moon - Rise: 06:29, Set: 22:19. Civil Dark: 20:48 - 05:28. Nautical Dark: 21:33 - 04:43. Astro Dark: 22:24 - 03:51

Total Clouds (% Sky Obscured)

79
89
67
43
16
14
12
12
10
10
11
11
11
11
11
11
14
23
35
50
59
57
58
53

Low Clouds (% Sky Obscured)

56
57
47
36
16
14
12
11
7
6
4
4
5
7
10
11
14
23
35
50
43
36
26
31

Medium Clouds (% Sky Obscured)

22
9
5
2
1
1
0
0
0
0
0
0
0
0
0
0
0
3
9
12
12
10
8
6

High Clouds (% Sky Obscured)

18
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
0
1
1
1
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
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 (%)

26
32
26
25
9
7
6
1
0
0
0
0
0
0
0
0
0
0
0
0
5
8
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
13
13
9
9
9
9
8
7
4
4
3
3
3
3
4
5
6
7
7
8
12
12
12

Dew Point (°C)

5
6
6
6
5
5
4
4
3
3
3
2
3
3
3
4
4
5
5
4
4
5
5
5

Relative Humidity (%)

56
61
67
71
74
77
79
81
82
85
86
88
89
88
88
82
74
68
63
57
52
53
53
54

Pressure (mb)

1023
1024
1024
1024
1025
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1028
1028
1028
1028
1027
1027
1027
1026
1026

Ozone (du)

393
391
389
389
389
389
389
389
389
389
389
390
390
390
390
391
391
391
391
392
392
393
393
393

Sunday 19

Waxing Crescent 14%

07:05

23:51

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

Sun - Rise: 06:02, Set: 20:13, Transit: 13:09. Moon - Rise: 07:05, Set: 23:51. Civil Dark: 20:49 - 05:26. Nautical Dark: 21:35 - 04:40. Astro Dark: 22:27 - 03:48

Total Clouds (% Sky Obscured)

50
51
49
46
41
47
57
82
61
36
16
19
19
20
21
24
25
24
22
21

Low Clouds (% Sky Obscured)

34
38
38
38
38
27
13
0
0
0
0
6
11
16
9
4
0
2
5
8

Medium Clouds (% Sky Obscured)

4
2
2
1
0
0
0
0
3
5
7
5
2
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

4
7
7
6
7
32
57
82
61
35
4
3
1
1
1
3
8
9
9
8

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

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

Precipitation Probability (%)

6
2
5
4
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
13
12
11
9
7
7
6
5
4
4
4
4
4
3
5
7
9
11
12

Feels Like (°C)

12
12
13
8
8
8
7
6
6
2
3
3
3
3
2
2
3
3
4
5

Dew Point (°C)

6
6
7
6
5
3
3
3
2
2
2
2
3
2
2
2
2
3
4
3

Relative Humidity (%)

58
62
67
69
73
75
78
81
82
85
86
89
89
89
89
80
71
64
61
56

Pressure (mb)

1026
1026
1026
1026
1027
1027
1027
1027
1027
1026
1026
1026
1026
1026
1026
1025
1025
1025
1025
1024

Ozone (du)

393
394
394
394
395
395
395
395
396
395
394
393
392
392
391
390
390
389
389
388

Forecast for Bristol, Bristol, United Kingdom (51.45,-2.59)

Generated: 13/04/26 16:21:16. Forecast: 13/04/26 to 19/04/26. Timezone: UTC+1.00