Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 21

Waxing Crescent 24%

08:56

02:05

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

Sun - Rise: 05:47, Set: 20:05, Transit: 12:57. Moon - Rise: 08:56, Set: 02:05. Civil Dark: 20:42 - 05:10. Nautical Dark: 21:28 - 04:24. Astro Dark: 22:21 - 03:30

Total Clouds (% Sky Obscured)

46
43
31
28
13
18
17
23
27
29
31
30
27
19
16
30
32
5
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

0
0
21
28
13
18
17
23
27
29
31
30
27
19
16
30
32
5
0
0
0
0
0
0

Medium 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

High Clouds (% Sky Obscured)

36
34
31
28
13
3
0
0
0
0
0
0
0
0
0
0
0
0
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
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)

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

Chance of Frost

Temperature (°C)

12
12
11
10
9
8
8
7
7
6
7
7
7
7
7
8
10
12
13
13
14
14
15
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

61
57
56
58
64
71
77
79
82
85
87
88
88
87
84
81
73
65
59
55
50
50
49
50

Pressure (mb)

1025
1025
1025
1025
1025
1025
1026
1026
1026
1026
1025
1025
1025
1025
1025
1026
1026
1026
1027
1027
1026
1027
1027
1027

Ozone (du)

411
409
407
404
400
399
400
399
398
397
395
392
391
389
387
387
385
381
378
379
378
379
380
379

Wednesday 22

Waxing Crescent 35%

10:19

02:49

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

Sun - Rise: 05:45, Set: 20:07, Transit: 12:57. Moon - Rise: 10:19, Set: 02:49. Civil Dark: 20:44 - 05:08. Nautical Dark: 21:30 - 04:22. Astro Dark: 22:24 - 03:27

Total Clouds (% Sky Obscured)

0
0
0
1
1
1
1
0
0
0
0
6
20
26
28
32
36
41
35
20
0
0
0
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
6
20
26
28
32
36
41
35
20
0
0
0
0

Medium 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

High Clouds (% Sky Obscured)

0
0
0
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
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
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)

15
15
13
11
12
10
8
7
6
7
7
7
7
7
7
7
9
11
12
12
13
12
12
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

50
51
56
62
67
68
72
77
82
84
85
88
90
91
93
88
81
70
58
49
43
40
40
42

Pressure (mb)

1027
1027
1027
1027
1027
1028
1029
1029
1029
1029
1029
1029
1030
1030
1030
1030
1031
1031
1031
1031
1031
1031
1030
1030

Ozone (du)

379
379
378
380
382
381
379
378
378
375
377
382
387
392
395
393
393
392
392
386
382
379
378
376

Thursday 23

Waxing Crescent 46%

11:45

03:18

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

Sun - Rise: 05:43, Set: 20:09, Transit: 12:57. Moon - Rise: 11:45, Set: 03:18. Civil Dark: 20:45 - 05:06. Nautical Dark: 21:32 - 04:19. Astro Dark: 22:26 - 03:24

Total Clouds (% Sky Obscured)

0
0
0
0
41
44
36
34
34
35
32
29
34
40
51
52
54
38
35
20
0
0
4
5

Low Clouds (% Sky Obscured)

0
0
0
0
41
44
36
34
34
35
32
29
34
40
51
52
54
38
35
20
0
0
0
0

Medium 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

High Clouds (% Sky Obscured)

0
0
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
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)

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

Chance of Frost

Temperature (°C)

15
14
12
11
9
8
8
7
7
6
6
6
5
5
5
6
8
10
11
13
14
15
16
16

Feels Like (°C)

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

Dew Point (°C)

3
3
3
3
3
3
3
2
1
1
1
1
0
0
0
-0
-1
-1
-1
-2
-1
-1
-1
0

Relative Humidity (%)

44
48
53
56
64
69
70
70
67
67
70
70
71
71
71
66
55
48
41
37
35
33
33
34

Pressure (mb)

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

Ozone (du)

373
371
370
369
367
366
366
366
365
365
364
364
365
367
370
374
377
377
372
366
363
362
362
361

Friday 24

First Quarter 58%

13:09

03:39

16 Good
17 Good
18 Good
19 OK
20 OK
21 OK
22 OK
23 OK
00 OK
01 Bad
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

Sun - Rise: 05:41, Set: 20:10, Transit: 12:56. Moon - Rise: 13:09, Set: 03:39. Civil Dark: 20:47 - 05:04. Nautical Dark: 21:34 - 04:17. Astro Dark: 22:29 - 03:21

Total Clouds (% Sky Obscured)

4
3
8
25
25
40
38
24
27
51
44
69
70
54
82
75
63
75
82
70
75
65
72
84

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
15
24
27
51
44
69
70
54
75
60
42
23
14
7
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
2
0
0
0
0
0
0
0
0
0
6
14
22
21
18
11
28
43
55

High Clouds (% Sky Obscured)

2
1
4
10
10
10
3
1
1
6
2
14
14
3
17
19
10
33
45
50
67
65
71
84

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)

10
10
8
6
5
5
5
5
4
4
3
3
3
3
2
3
4
3
4
5
6
7
7
7

Chance of Frost

Temperature (°C)

16
15
14
13
11
10
8
8
7
6
6
6
5
5
5
6
8
10
11
13
15
17
17
17

Feels Like (°C)

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

Dew Point (°C)

1
1
3
4
5
4
3
2
1
1
1
0
-0
-0
-1
-1
-1
-2
-2
-2
-2
-1
0
2

Relative Humidity (%)

35
39
46
56
66
69
68
66
67
69
68
67
67
68
67
61
53
45
38
34
30
30
32
34

Pressure (mb)

1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1022
1022
1022

Ozone (du)

360
361
362
365
366
366
366
365
365
365
364
363
361
360
359
360
361
361
361
359
359
360
358
357

Saturday 25

Waxing Gibbous 68%

14:29

03:54

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

Sun - Rise: 05:39, Set: 20:12, Transit: 12:56. Moon - Rise: 14:29, Set: 03:54. Civil Dark: 20:49 - 05:02. Nautical Dark: 21:36 - 04:14. Astro Dark: 22:32 - 03:17

Total Clouds (% Sky Obscured)

100
100
100
98
96
93
87
81
73
64
56
47
56
63
73
97
97
97
84
68
39
29
22
15

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
13
24
36
47
58
69
43
44
44
37
31
23
15
7
2

Medium Clouds (% Sky Obscured)

58
99
100
97
94
92
87
81
73
64
56
47
52
51
50
93
95
97
84
68
39
29
22
15

High Clouds (% Sky Obscured)

77
55
36
40
49
58
42
28
15
15
15
20
15
20
20
32
32
37
35
47
39
29
22
15

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

Chance of Frost

Temperature (°C)

17
17
16
14
13
11
10
9
9
8
7
7
7
7
7
7
8
10
11
12
13
15
15
15

Feels Like (°C)

15
13
13
11
10
9
7
6
5
5
5
4
4
4
4
4
4
5
5
6
6
7
11
11

Dew Point (°C)

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

Relative Humidity (%)

38
41
48
60
64
68
72
77
85
84
84
82
82
82
81
77
70
63
57
55
50
47
49
50

Pressure (mb)

1022
1022
1022
1022
1023
1024
1024
1024
1025
1025
1025
1025
1025
1025
1026
1026
1027
1028
1028
1028
1028
1028
1027
1027

Ozone (du)

360
361
363
364
364
365
365
365
367
369
369
369
368
368
369
371
372
373
374
378
382
386
385
385

Sunday 26

Waxing Gibbous 78%

15:46

04:07

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

Sun - Rise: 05:37, Set: 20:14, Transit: 12:56. Moon - Rise: 15:46, Set: 04:07. Civil Dark: 20:51 - 05:00. Nautical Dark: 21:38 - 04:12. Astro Dark: 22:35 - 03:14

Total Clouds (% Sky Obscured)

22
29
35
53
71
90
72
55
42
43
40
33
44
54
57
63
63
60
65
79
89
86
74
67

Low Clouds (% Sky Obscured)

1
1
0
5
12
19
20
20
20
15
9
0
0
0
0
0
0
0
28
55
83
77
70
63

Medium Clouds (% Sky Obscured)

22
29
18
14
10
9
8
8
7
8
9
10
18
46
57
31
21
12
13
9
10
12
9
11

High Clouds (% Sky Obscured)

22
20
10
37
64
90
63
32
1
1
1
2
1
1
0
0
0
0
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
Very Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
1
1
0
2
1
0
5
7
7
19
24
23
45
60
75

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
0.3
0.6

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
11
11
12
9
8
7
7
6
5
4
4
3
3
3
3
5
5
6
6
7
8
13
12

Dew Point (°C)

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

Relative Humidity (%)

51
57
62
68
71
73
77
78
81
82
83
85
86
85
85
83
75
67
59
55
51
47
48
49

Pressure (mb)

1027
1027
1027
1027
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1027

Ozone (du)

385
385
384
384
382
380
377
377
377
377
377
377
377
377
378
378
379
381
382
383
383
384
385
387

Monday 27

Waxing Gibbous 86%

No Rise

04:18

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 OK
08 OK
09 OK
10 OK
11 Bad
12 Bad

Sun - Rise: 05:35, Set: 20:15, Transit: 12:56. Moon - Rise: No Rise, Set: 04:18. Civil Dark: 20:53 - 04:57. Nautical Dark: 21:41 - 04:09. Astro Dark: 22:38 - 03:10

Total Clouds (% Sky Obscured)

75
87
95
86
86
70
69
65
60
60
61
61
53
53
47
44
46
44
43
45
46

Low Clouds (% Sky Obscured)

62
60
59
61
63
62
61
65
60
60
61
61
53
53
47
44
41
33
32
31
32

Medium Clouds (% Sky Obscured)

22
29
35
30
25
19
9
2
0
0
0
0
0
0
0
0
0
0
1
1
2

High Clouds (% Sky Obscured)

22
47
55
34
18
2
1
1
1
6
10
13
9
5
2
1
1
1
2
3
5

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

Fog (%)

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

Precipitation Type

Light Rain
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 (%)

73
75
82
63
39
8
10
10
0
1
1
0
1
1
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.5
0.5
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
12
12
12
8
8
8
7
7
6
3
3
3
4
3
3
5
5
6
7
7

Dew Point (°C)

4
5
5
5
5
5
4
4
4
3
3
3
3
4
4
4
4
3
2
2
1

Relative Humidity (%)

49
54
59
65
68
74
78
81
82
85
86
86
88
90
88
86
74
63
53
50
46

Pressure (mb)

1027
1027
1027
1027
1027
1028
1028
1028
1028
1028
1028
1027
1027
1027
1027
1027
1027
1026
1026
1026
1026

Ozone (du)

388
390
391
393
392
392
391
390
389
388
386
385
384
382
381
379
380
380
380
381
382

Forecast for Sutton at Hone, Kent, United Kingdom (51.41,0.23)

Generated: 21/04/26 16:17:25. Forecast: 21/04/26 to 27/04/26. Timezone: UTC+1.00