Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 28

Waxing Gibbous 79%

No Rise

05:34

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

Sun - Rise: 07:48, Set: 16:49, Transit: 12:20. Moon - Rise: No Rise, Set: 05:34. Civil Dark: 17:26 - 07:12. Nautical Dark: 18:06 - 06:32. Astro Dark: 18:46 - 05:52

Total Clouds (% Sky Obscured)

40
34
47
8
4
29
43
37
42
47
58
60
59
53
60
65
67
53
49
44
41
56
63
72

Low Clouds (% Sky Obscured)

40
23
30
8
4
29
43
37
42
47
58
60
59
53
60
65
67
53
49
44
41
51
61
72

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
4
21
32
23
6
4

High Clouds (% Sky Obscured)

0
0
2
3
3
0
0
0
0
0
0
0
0
0
0
0
28
6
3
5
0
0
3
16

ISS Passover

Visibility (miles)

9
9
9
7
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
5
36
19
43
9

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 (%)

3
2
10
22
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
6
4
4
5
5
5
4
4
4
4
4
5
6
6
6
7
7
7
7
8
9
11
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
6
6
6
4
3
2
2
3
2
2
2
2
2
2
2
1
1
1
-0
-1
-0
1

Dew Point (°C)

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

Relative Humidity (%)

78
78
79
84
88
91
93
96
96
96
94
96
94
94
94
94
93
94
94
94
96
94
93
89

Pressure (mb)

994
995
995
995
995
996
996
997
997
998
998
998
998
998
998
998
998
998
998
998
998
998
998
998

Ozone (du)

495
493
493
498
500
496
501
499
492
490
494
491
493
489
489
480
468
460
460
439
400
384
378
375

Thursday 29

Waxing Gibbous 88%

12:14

06:38

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
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:47, Set: 16:51, Transit: 12:20. Moon - Rise: 12:14, Set: 06:38. Civil Dark: 17:28 - 07:11. Nautical Dark: 18:08 - 06:30. Astro Dark: 18:47 - 05:51

Total Clouds (% Sky Obscured)

43
58
88
79
92
97
100
99
100
100
100
100
99
97
100
100
100
89
84
94
86
74
79
100

Low Clouds (% Sky Obscured)

43
49
44
62
86
95
72
79
89
87
87
100
88
82
82
82
78
89
72
90
76
71
64
67

Medium Clouds (% Sky Obscured)

16
18
59
67
49
27
57
52
93
100
100
85
97
90
99
99
100
10
35
26
11
5
2
42

High Clouds (% Sky Obscured)

2
0
0
0
0
0
0
2
4
2
91
10
6
14
12
2
1
1
23
29
1
1
45
95

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
6
9
9
9
9
2
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
1
0
1
0

Precipitation Type

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

Precipitation Probability (%)

0
1
2
1
0
3
2
9
30
40
47
53
63
65
56
38
14
21
33
12
13
4
4
7

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.3
0.2
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
84
85
87
90
93
93
91
91
93
93
93
93
93
94
94
96
93
96
93
93
90
90
88

Pressure (mb)

997
996
995
995
995
995
994
994
994
993
993
993
992
992
991
991
991
991
991
991
991
991
990
990

Ozone (du)

374
377
380
379
376
373
376
377
378
381
383
385
384
383
381
380
379
382
389
392
395
391
393
397

Friday 30

Waxing Gibbous 95%

13:25

07:22

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 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:45, Set: 16:53, Transit: 12:20. Moon - Rise: 13:25, Set: 07:22. Civil Dark: 17:29 - 07:09. Nautical Dark: 18:10 - 06:29. Astro Dark: 18:49 - 05:50

Total Clouds (% Sky Obscured)

100
100
100
100
100
97
96
97
100
100
100
100
100
100
93
100
100
100
100
100
100
99
98
97

Low Clouds (% Sky Obscured)

73
73
82
89
94
92
92
93
100
95
92
96
95
94
72
66
68
72
77
78
75
84
88
93

Medium Clouds (% Sky Obscured)

100
100
100
99
100
72
24
7
92
36
42
98
43
30
25
25
37
94
100
100
100
89
80
54

High Clouds (% Sky Obscured)

100
100
100
87
71
12
10
0
3
1
0
44
60
66
91
92
84
78
56
35
14
13
11
15

ISS Passover

Visibility (miles)

9
9
7
4
3
9
4
6
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
Light Rain
Moderate Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
Very Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

10
43
95
95
95
86
71
51
39
27
15
25
30
43
52
33
39
43
38
39
29
26
18
8

Precipitation Amount (mm)

0
0
0.7
2.8
0.6
0.7
0.3
0
0
0
0
0
0
0
0.3
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

14
16
16
17
18
17
16
15
15
17
15
14
13
13
12
11
10
9
10
9
8
7
7
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
90
93
93
94
94
93
93
93
91
88
88
86
83
85
90
91
93
93
93
91
88
87

Pressure (mb)

989
987
986
985
985
984
982
981
981
982
983
984
984
985
986
987
988
989
991
992
993
994
994
995

Ozone (du)

403
405
406
407
411
416
420
422
422
420
419
419
419
419
417
418
418
417
415
415
419
422
422
419

Saturday 31

Waxing Gibbous 99%

14:50

07:52

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 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:44, Set: 16:55, Transit: 12:20. Moon - Rise: 14:50, Set: 07:52. Civil Dark: 17:31 - 07:08. Nautical Dark: 18:11 - 06:28. Astro Dark: 18:50 - 05:49

Total Clouds (% Sky Obscured)

94
64
61
47
44
49
70
66
73
82
89
98
98
98
98
96
95
94
96
98
85
95
95
95

Low Clouds (% Sky Obscured)

93
64
61
47
44
49
57
56
56
65
71
72
65
59
54
68
79
91
94
86
85
95
95
95

Medium Clouds (% Sky Obscured)

48
24
22
27
27
32
28
22
20
49
81
95
96
98
98
96
90
87
84
82
51
50
42
37

High Clouds (% Sky Obscured)

8
0
1
0
0
1
6
1
13
27
23
20
14
12
5
10
15
15
15
15
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
5
0
1
0
9
7
2
6
9
1
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
None
None
None
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
None

Precipitation Probability (%)

17
17
12
19
20
18
19
9
1
2
2
0
12
37
88
84
53
50
53
59
68
59
54
36

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.7
0.6
0
0
0
0.2
0.4
0.2
0.2
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
4
5
6
6
4
4
3
3
1
1
2
1
2
2
0
-1
1
2
1
1
2
3
4

Dew Point (°C)

4
4
4
5
5
5
5
5
5
5
5
5
6
6
6
5
5
5
6
4
4
4
5
5

Relative Humidity (%)

81
78
77
81
85
91
94
94
96
98
98
96
98
96
94
91
91
94
96
87
86
88
87
82

Pressure (mb)

996
996
996
997
998
998
999
999
999
999
999
999
998
998
997
997
996
996
995
996
997
997
998
998

Ozone (du)

415
413
414
417
437
451
444
450
419
410
400
399
394
387
380
376
372
373
372
373
378
380
381
378

Sunday 1

Full Moon 100%

16:20

08:13

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 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:42, Set: 16:57, Transit: 12:20. Moon - Rise: 16:20, Set: 08:13. Civil Dark: 17:33 - 07:06. Nautical Dark: 18:13 - 06:26. Astro Dark: 18:52 - 05:47

Total Clouds (% Sky Obscured)

98
100
97
92
85
78
93
92
92
99
100
100
100
100
100
98
97
95
96
96
96
98
99
100

Low Clouds (% Sky Obscured)

98
100
97
92
84
77
15
30
45
51
56
62
65
67
68
75
84
91
93
95
96
98
99
100

Medium Clouds (% Sky Obscured)

43
43
46
31
16
16
35
28
20
47
74
99
93
87
81
80
77
78
80
86
85
85
85
85

High Clouds (% Sky Obscured)

22
35
3
9
18
19
93
92
92
98
99
100
70
40
15
25
50
50
35
20
10
14
14
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
7
6

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
Light Rain

Precipitation Probability (%)

21
18
5
9
6
2
0
0
0
0
0
0
0
0
0
0
0
1
7
15
22
45
67
89

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
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
81
79
82
87
93
91
91
91
91
90
90
88
88
90
91
91
89
90
90
91
93
94
93

Pressure (mb)

998
998
998
999
999
999
999
1001
1001
1001
1000
1000
1000
999
998
998
997
996
996
996
995
995
995
995

Ozone (du)

377
377
377
378
378
379
379
379
379
378
378
378
378
377
375
374
374
374
373
375
376
377
378
378

Monday 2

Waning Gibbous 98%

17:48

08:28

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 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:41, Set: 16:58, Transit: 12:20. Moon - Rise: 17:48, Set: 08:28. Civil Dark: 17:34 - 07:05. Nautical Dark: 18:14 - 06:25. Astro Dark: 18:53 - 05:46

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
98
96
96
97
98
100
100
100
100
94
87
81

Low Clouds (% Sky Obscured)

100
100
100
95
88
83
87
91
97
98
100
100
98
96
96
97
98
100
95
90
90
83
81
79

Medium Clouds (% Sky Obscured)

80
75
60
83
92
100
100
100
100
85
71
56
43
28
12
13
14
12
38
64
90
79
68
60

High Clouds (% Sky Obscured)

25
35
45
63
82
100
100
100
100
100
100
100
82
62
41
33
25
30
56
79
99
92
85
81

ISS Passover

Visibility (miles)

4
3
3
3
4
4
5
6
8
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

Light Rain
Light Rain
Light Rain
Light Rain
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

Precipitation Probability (%)

94
93
86
95
95
95
93
69
35
27
16
3
9
12
13
14
11
1
4
5
4
26
34
37

Precipitation Amount (mm)

0.6
0.6
0.5
0.8
0.9
1
0.6
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
94
96
96
94
94
94
94
94
96
96
96
94
96
94
96
94
94
96
94
96
94
88
84

Pressure (mb)

994
994
993
993
993
993
993
993
993
993
993
993
993
993
993
992
992
992
992
993
993
993
994
994

Ozone (du)

379
379
379
379
380
380
380
383
386
389
392
395
398
399
400
401
400
400
400
402
404
407
409
411

Tuesday 3

Waning Gibbous 94%

19:12

08:41

Sun - Rise: 07:39, Set: 17:00, Transit: 12:20. Moon - Rise: 19:12, Set: 08:41. Civil Dark: 17:36 - 07:03. Nautical Dark: 18:16 - 06:24. Astro Dark: 18:55 - 05:45

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Swindon, Swindon, United Kingdom (51.56,-1.78)

Generated: 28/01/26 12:18:55. Forecast: 28/01/26 to 03/02/26. Timezone: UTC+0.00