Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 31

Full Moon 100%

22:06

04:21

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 OK
15 OK
16 Good
17 OK
18 OK
19 Good
20 Good
21 Good
22 OK
23 OK

Sun - Rise: 05:00, Set: 21:10, Transit: 13:05. Moon - Rise: 22:06, Set: 04:21. Civil Dark: 21:53 - 04:17. Nautical Dark: 22:56 - 03:14. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

69
76
81
100
100
100
100
100
100
100
100
84
80
51
32
24
7
28
38
0
9
15
25
28

Low Clouds (% Sky Obscured)

0
0
67
61
61
63
10
56
33
10
28
1
34
16
2
0
0
9
24
0
9
15
6
24

Medium Clouds (% Sky Obscured)

46
26
28
1
0
100
100
100
100
97
94
84
80
47
19
12
2
14
5
0
0
0
0
0

High Clouds (% Sky Obscured)

69
76
81
100
100
100
100
100
100
100
47
0
0
0
0
0
0
0
0
0
0
5
25
16

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
1
0
0
0
2
2
2
1
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)

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

Chance of Frost

Temperature (°C)

14
14
13
12
12
12
13
14
16
16
17
18
19
19
19
19
19
19
19
18
17
14
13
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
78
80
80
81
86
86
83
75
73
65
60
58
60
63
65
70
63
67
68
74
84
92
92

Pressure (mb)

1018
1018
1018
1017
1017
1017
1017
1018
1018
1018
1018
1019
1019
1018
1019
1019
1019
1018
1018
1018
1018
1018
1019
1019

Ozone (du)

354
346
343
340
340
340
339
341
341
346
349
356
357
359
353
346
344
342
342
340
338
335
335
335

Monday 1

Waning Gibbous 99%

23:00

05:00

00 Good
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
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 05:00, Set: 21:11, Transit: 13:05. Moon - Rise: 23:00, Set: 05:00. Civil Dark: 21:55 - 04:16. Nautical Dark: 22:58 - 03:13. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

5
25
76
100
100
92
94
100
99
92
98
97
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
12
16
34
2
0
45
66
66
50
60
4
54
69
91
93
85
95
85
96
85
86
91
84

Medium Clouds (% Sky Obscured)

0
0
11
17
28
23
37
84
94
80
91
96
99
100
99
98
100
100
96
100
100
93
99
97

High Clouds (% Sky Obscured)

5
25
56
100
100
82
42
100
97
77
71
61
96
100
100
100
100
100
100
100
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
5
6
9
9
7
5
3

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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
6
20
25
39
87
95
88
87
88
92
95
85

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.9
0.5
0.5
0.5
0.7
0.8
0.6

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

12
11
11
11
11
11
12
14
15
16
17
18
18
17
17
17
16
15
15
15
15
15
15
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
93
91
91
91
91
92
89
85
79
71
65
64
68
72
68
79
96
96
96
96
98
98
98

Pressure (mb)

1019
1019
1019
1018
1018
1018
1018
1018
1017
1017
1017
1017
1016
1016
1015
1014
1014
1013
1012
1011
1011
1010
1010
1009

Ozone (du)

336
334
333
331
331
328
327
326
327
327
328
329
329
329
330
332
334
336
337
340
343
350
355
363

Tuesday 2

Waning Gibbous 97%

23:43

05:52

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 OK
18 Bad
19 OK
20 OK
21 Good
22 Good
23 Good

Sun - Rise: 04:59, Set: 21:12, Transit: 13:05. Moon - Rise: 23:43, Set: 05:52. Civil Dark: 21:56 - 04:15. Nautical Dark: 23:00 - 03:11. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

83
76
77
93
60
55
66
75
85
96
96
100
97
90
95
90
90
8
45
29
14
0
3
6

Low Clouds (% Sky Obscured)

61
76
73
83
58
54
64
59
48
47
7
17
6
8
4
2
5
8
45
29
14
0
3
6

Medium Clouds (% Sky Obscured)

32
50
17
83
3
0
7
5
39
58
65
57
10
10
55
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

19
10
14
25
23
12
1
33
44
79
90
85
69
61
75
76
71
0
0
1
0
0
0
0

ISS Passover

Visibility (miles)

4
9
3
4
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

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

Precipitation Probability (%)

80
90
95
73
27
11
14
31
24
19
25
29
36
20
29
31
20
20
1
0
0
0
0
0

Precipitation Amount (mm)

0.3
0.3
0.7
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
15
15
14
14
14
13
14
15
16
17
18
17
17
18
18
18
18
18
17
16
15
13
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
96
98
96
95
95
92
89
85
73
65
73
73
70
73
76
78
76
73
74
78
86
93

Pressure (mb)

1008
1008
1007
1007
1006
1006
1006
1006
1006
1006
1006
1007
1007
1007
1007
1007
1007
1008
1008
1008
1009
1010
1011
1011

Ozone (du)

372
375
380
384
388
393
397
393
394
397
399
400
402
401
402
402
393
384
383
385
381
376
369
364

Wednesday 3

Waning Gibbous 93%

No Rise

06:54

00 Good
01 Good
02 OK
03 OK
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
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 04:58, Set: 21:13, Transit: 13:06. Moon - Rise: No Rise, Set: 06:54. Civil Dark: 21:57 - 04:14. Nautical Dark: 23:01 - 03:10. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

8
11
15
19
67
49
95
98
99
100
100
100
100
100
100
100
100
97
69
51
37
44
60
69

Low Clouds (% Sky Obscured)

8
11
14
17
25
33
42
47
54
48
67
84
100
100
100
100
97
92
66
43
25
23
45
55

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
2
2
4
5
20
64
79
95
98
98
100
75
69
51
37
20
22
22

High Clouds (% Sky Obscured)

0
1
1
1
36
49
88
93
96
100
100
100
100
100
100
85
52
24
3
2
2
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
4
4
7
2
1
3
9
9
9
9
7
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
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
1
1
1
17
57
46
41
52
69
95
95
95
95
76
34
20
23

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.3
0
0
0.2
0.4
0.7
1
1.3
0.8
0.4
0
0
0

Wind Speed/Direction (mph)

8
9
9
8
8
7
7
8
12
14
16
17
17
18
18
18
19
19
19
19
18
15
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
96
96
96
96
95
96
90
82
78
77
82
96
96
98
98
98
96
89
87
89
86
86
86

Pressure (mb)

1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1010
1009
1009
1008
1007
1006
1005
1004
1004
1004
1003
1004
1003

Ozone (du)

359
353
350
348
345
345
344
344
343
344
344
346
346
348
353
360
363
371
374
379
385
393
396
398

Thursday 4

Waning Gibbous 88%

00:16

08:03

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 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 04:58, Set: 21:14, Transit: 13:06. Moon - Rise: 00:16, Set: 08:03. Civil Dark: 21:58 - 04:13. Nautical Dark: 23:03 - 03:09. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

72
53
61
90
89
88
88
78
68
57
52
44
36
53
68
96
74
55
46
55
63
68
61
50

Low Clouds (% Sky Obscured)

62
45
49
49
46
46
38
36
33
32
20
11
0
5
10
14
10
5
0
16
31
46
38
32

Medium Clouds (% Sky Obscured)

21
31
40
46
43
43
43
34
59
36
19
31
35
52
68
84
74
55
46
55
63
60
61
50

High Clouds (% Sky Obscured)

0
0
0
0
0
10
15
15
15
10
10
11
11
10
10
13
18
24
40
45
45
40
30
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
8

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 (%)

5
10
17
29
28
24
20
16
12
4
7
5
3
19
21
14
22
21
18
20
21
23
28
29

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)

14
14
13
12
12
13
12
12
14
15
16
17
18
18
18
18
17
16
15
14
12
9
7
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
86
87
87
86
83
80
79
72
67
61
57
55
52
54
55
57
60
65
69
72
77
83
84

Pressure (mb)

1004
1004
1003
1003
1003
1004
1004
1004
1005
1005
1006
1006
1006
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007

Ozone (du)

392
384
382
381
380
380
376
370
368
370
369
371
370
365
360
356
352
350
347
344
347
350
352
352

Friday 5

Waning Gibbous 81%

00:40

09:16

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
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 04:57, Set: 21:15, Transit: 13:06. Moon - Rise: 00:40, Set: 09:16. Civil Dark: 21:59 - 04:13. Nautical Dark: 23:04 - 03:08. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

38
31
42
53
71
86
95
97
99
99
96
93
90
93
97
99
99
100
100
89
79
71
71
70

Low Clouds (% Sky Obscured)

29
31
42
53
64
53
57
58
58
62
61
62
64
68
73
80
67
51
36
33
30
27
34
40

Medium Clouds (% Sky Obscured)

38
31
42
53
71
82
93
68
39
14
30
47
63
72
82
91
94
97
100
77
52
28
21
11

High Clouds (% Sky Obscured)

20
12
6
4
11
17
24
16
8
0
0
0
0
3
6
9
9
5
10
8
8
9
5
2

ISS Passover

Visibility (miles)

7
6
6
5
4
4
3
3
3
3
3
5
7
9
9
8
7
8
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

33
63
85
95
95
95
95
95
89
81
78
73
64
57
63
71
62
53
46
44
45
47
49
48

Precipitation Amount (mm)

0
0.3
0.6
0.9
0.8
0.8
0.8
0.7
0.6
0.5
0.5
0.4
0.3
0
0.3
0.5
0.3
0.2
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
6
6
6
6
8
9
10
12
14
16
9
14
21
20
19
19
18
18
17
16
15
13
13

Chance of Frost

Temperature (°C)

11
11
11
11
11
11
12
13
13
13
13
13
13
13
13
13
14
14
14
14
13
13
12
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
88
91
96
98
98
96
96
93
92
87
89
89
90
84
80
78
75
72
69
72
75
77
81

Pressure (mb)

1007
1006
1006
1005
1004
1004
1003
1002
1001
1000
999
1000
1001
1002
1004
1005
1007
1008
1009
1010
1010
1011
1012
1012

Ozone (du)

352
352
354
357
359
363
367
372
377
382
387
392
398
403
401
399
397
398
398
399
395
392
389
384

Saturday 6

Waning Gibbous 72%

00:58

10:30

Sun - Rise: 04:57, Set: 21:16, Transit: 13:06. Moon - Rise: 00:58, Set: 10:30. Civil Dark: 22:00 - 04:12. Nautical Dark: 23:06 - 03:06. Astro Dark: N/A - N/A

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 Swanage, Dorset, United Kingdom (50.61,-1.96)

Generated: 31/05/26 00:12:54. Forecast: 31/05/26 to 06/06/26. Timezone: UTC+1.00