Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 22

Waxing Crescent 17%

07:19

23:52

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

Sun - Rise: 06:19, Set: 18:38, Transit: 12:28. Moon - Rise: 07:19, Set: 23:52. Civil Dark: 19:11 - 05:46. Nautical Dark: 19:49 - 05:08. Astro Dark: 20:29 - 04:28

Total Clouds (% Sky Obscured)

39
30
24
0
0
0
0
0
25
33
49
100
100
100
100
100
100
100
92
87
29
64
49
82

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
25
13
2
8
27
20
0
1
18
61
0
42
10
14
10
13

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
30
62
94
100
100
95
92
59
15
22
9
4

High Clouds (% Sky Obscured)

4
4
4
0
0
0
0
0
6
30
49
100
100
100
100
100
97
100
70
80
7
64
11
82

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
4
19
14
1
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)

2
2
3
4
5
6
7
7
7
11
9
11
10
12
11
8
11
14
15
14
15
15
15
14

Chance of Frost

Temperature (°C)

8
8
9
9
9
9
9
9
10
10
10
10
10
10
10
10
10
10
10
9
9
9
10
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
87
85
85
85
85
87
82
74
68
66
64
66
68
71
74
77
80
81
84
87
88
87

Pressure (mb)

1018
1017
1017
1017
1017
1017
1017
1017
1017
1018
1018
1018
1018
1017
1017
1017
1017
1018
1018
1018
1019
1019
1020
1020

Ozone (du)

369
370
370
370
366
357
350
348
347
345
345
348
348
344
343
346
353
358
365
368
366
363
361
357

Monday 23

Waxing Crescent 27%

07:48

No Set

00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 OK
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: 06:16, Set: 18:40, Transit: 12:28. Moon - Rise: 07:48, Set: No Set. Civil Dark: 19:12 - 05:44. Nautical Dark: 19:51 - 05:06. Astro Dark: 20:31 - 04:25

Total Clouds (% Sky Obscured)

67
94
100
100
93
46
40
44
98
100
56
88
87
99
97
97
100
100
100
100
99
100
100
99

Low Clouds (% Sky Obscured)

34
42
15
0
25
11
0
0
0
0
7
23
47
38
7
2
5
5
12
33
68
74
77
79

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
3
30
35
33
77
70
70
94
86
78
73
64
79
83
84
30
48

High Clouds (% Sky Obscured)

67
94
100
100
93
46
40
44
98
100
56
74
67
98
89
82
100
100
100
73
66
100
100
97

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
7
2
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)

14
13
11
10
8
6
3
2
3
3
4
6
6
7
7
7
8
8
7
7
8
10
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

7
7
8
8
8
8
8
8
8
8
8
7
7
7
7
7
7
8
8
8
8
8
8
9

Relative Humidity (%)

85
85
88
90
91
91
95
93
90
85
80
76
73
73
73
72
76
81
85
88
90
90
90
91

Pressure (mb)

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

Ozone (du)

354
350
348
346
345
344
344
342
342
341
342
342
342
341
340
340
338
338
339
338
337
336
336
337

Tuesday 24

Waxing Crescent 38%

08:30

01:16

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: 06:14, Set: 18:41, Transit: 12:28. Moon - Rise: 08:30, Set: 01:16. Civil Dark: 19:14 - 05:42. Nautical Dark: 19:52 - 05:03. Astro Dark: 20:33 - 04:23

Total Clouds (% Sky Obscured)

98
100
99
100
100
100
100
100
100
100
100
100
100
95
85
90
97
98
92
81
81
80
79
62

Low Clouds (% Sky Obscured)

83
80
74
89
96
100
83
74
73
78
86
72
62
76
63
89
96
96
91
81
80
69
62
58

Medium Clouds (% Sky Obscured)

39
56
57
95
85
81
89
69
72
100
70
60
51
60
38
0
2
24
35
58
77
51
29
0

High Clouds (% Sky Obscured)

87
86
74
88
54
93
100
98
100
99
100
100
100
52
0
0
2
1
4
4
3
36
55
22

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
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
Very Light Rain
None
None
Very Light Rain
Light Rain
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
45
45
19
38
52
67
50
36
25

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0.2
0.5
0
0
0

Wind Speed/Direction (mph)

11
12
13
14
15
16
17
17
19
21
22
23
24
25
27
27
26
25
26
24
24
25
25
26

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
7
7
7
6
6
6
6
6
6
6
5
5
6
6
5
4
5
4
4
3
4
3
1

Dew Point (°C)

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

Relative Humidity (%)

90
88
90
91
91
91
91
91
90
88
87
86
84
86
87
90
95
88
76
77
77
80
81
80

Pressure (mb)

1022
1021
1021
1021
1020
1020
1020
1019
1019
1019
1019
1019
1018
1017
1017
1016
1015
1015
1015
1015
1015
1015
1016
1016

Ozone (du)

335
334
334
334
334
333
333
332
332
334
336
339
343
350
351
353
354
354
357
358
362
367
368
367

Wednesday 25

First Quarter 50%

09:28

02:29

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: 06:12, Set: 18:43, Transit: 12:27. Moon - Rise: 09:28, Set: 02:29. Civil Dark: 19:15 - 05:40. Nautical Dark: 19:54 - 05:01. Astro Dark: 20:35 - 04:20

Total Clouds (% Sky Obscured)

73
79
86
90
93
96
89
82
75
72
71
71
70
69
69
70
73
75
78
76
71
63
59
52

Low Clouds (% Sky Obscured)

55
55
58
62
64
68
68
70
69
67
66
66
67
67
69
64
59
54
39
47
48
29
38
20

Medium Clouds (% Sky Obscured)

16
33
46
49
52
49
25
13
2
2
2
2
2
1
0
4
9
14
14
13
15
11
7
2

High Clouds (% Sky Obscured)

50
55
50
45
22
50
47
45
26
25
34
9
29
2
40
50
50
24
55
52
19
24
29
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

24
14
16
27
27
47
46
43
43
45
37
36
38
34
34
39
34
39
41
32
26
21
15
17

Precipitation Amount (mm)

0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

27
27
27
27
27
27
28
28
29
29
29
30
30
30
31
30
30
31
31
31
32
33
31
29

Chance of Frost

Temperature (°C)

9
8
8
8
7
7
7
7
7
7
7
8
8
8
8
8
8
8
8
8
9
9
8
8

Feels Like (°C)

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

Dew Point (°C)

5
2
0
0
0
-1
-1
0
0
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2

Relative Humidity (%)

78
63
59
58
59
58
59
61
62
63
65
64
63
61
61
61
62
63
67
63
62
62
63
63

Pressure (mb)

1016
1017
1018
1018
1018
1019
1019
1020
1020
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1023
1023
1024
1024
1024

Ozone (du)

366
365
362
360
358
358
356
355
353
351
348
344
341
336
335
331
330
330
331
333
334
332
331
328

Thursday 26

Waxing Gibbous 61%

10:41

03:25

00 Bad
01 Bad
02 Bad
03 Bad
04 OK
05 OK
06 OK
07 OK
08 Good
09 OK
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: 06:10, Set: 18:45, Transit: 12:27. Moon - Rise: 10:41, Set: 03:25. Civil Dark: 19:17 - 05:37. Nautical Dark: 19:56 - 04:58. Astro Dark: 20:37 - 04:18

Total Clouds (% Sky Obscured)

56
57
56
45
33
18
22
16
4
32
59
93
91
89
87
87
89
92
92
91
86
90
94
99

Low Clouds (% Sky Obscured)

26
41
44
27
16
4
4
2
1
18
37
58
59
61
62
62
63
63
73
80
86
85
85
87

Medium Clouds (% Sky Obscured)

2
2
4
2
2
18
19
4
3
15
29
33
31
21
20
13
17
20
29
38
41
50
57
64

High Clouds (% Sky Obscured)

30
15
15
15
10
15
15
15
2
1
2
20
20
20
27
36
31
31
22
14
7
7
8
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 (%)

12
10
6
14
5
2
0
0
0
4
9
20
17
12
8
6
7
9
8
7
1
5
5
2

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)

28
26
25
24
23
21
20
19
17
16
15
15
16
16
17
18
17
17
16
16
15
15
15
15

Chance of Frost

Temperature (°C)

8
8
8
8
8
8
8
8
8
8
8
9
9
9
9
9
9
9
9
9
9
9
9
9

Feels Like (°C)

2
1
2
2
2
2
2
3
4
5
5
6
6
6
6
5
5
6
6
5
5
4
4
4

Dew Point (°C)

2
1
1
1
1
2
1
2
3
2
3
3
3
4
4
5
5
5
6
6
6
6
7
7

Relative Humidity (%)

63
62
62
64
64
65
64
66
68
65
67
67
67
69
70
72
74
77
80
80
81
81
82
84

Pressure (mb)

1025
1025
1026
1026
1026
1027
1027
1027
1028
1028
1028
1028
1028
1028
1027
1027
1027
1027
1027
1027
1027
1027
1026
1026

Ozone (du)

325
323
321
320
319
317
317
317
317
317
317
317
317
317
318
319
317
315
313
313
312
311
311
311

Friday 27

Waxing Gibbous 72%

12:03

04:04

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: 06:08, Set: 18:46, Transit: 12:27. Moon - Rise: 12:03, Set: 04:04. Civil Dark: 19:19 - 05:35. Nautical Dark: 19:58 - 04:56. Astro Dark: 20:39 - 04:15

Total Clouds (% Sky Obscured)

99
99
100
100
100
100
96
98
98
98
97
96
89
82
76
83
90
97
98
99
100
100
100
100

Low Clouds (% Sky Obscured)

83
79
76
78
79
87
89
90
91
93
93
92
83
73
64
58
53
47
60
72
85
90
95
100

Medium Clouds (% Sky Obscured)

68
67
72
66
61
60
45
30
19
21
29
25
13
18
14
23
32
41
54
74
95
80
65
54

High Clouds (% Sky Obscured)

20
30
40
62
77
91
79
70
61
52
27
7
22
37
51
53
44
43
48
63
82
92
98
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 (%)

3
4
8
16
24
30
31
34
32
24
18
8
6
3
1
2
2
1
14
26
36
41
44
46

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

Chance of Frost

Temperature (°C)

10
10
10
10
10
10
10
10
10
10
11
11
11
11
11
11
11
11
11
11
11
11
10
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
87
85
87
88
88
88
87
87
87
87
87
87
88
87
88
90
91
95
95
96
96
96
95

Pressure (mb)

1026
1026
1026
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024

Ozone (du)

310
310
310
310
310
310
311
310
310
310
310
311
311
311
312
312
312
313
314
314
315
316
317
317

Saturday 28

Waxing Gibbous 82%

13:27

04:32

Sun - Rise: 06:05, Set: 18:48, Transit: 12:27. Moon - Rise: 13:27, Set: 04:32. Civil Dark: 19:20 - 05:33. Nautical Dark: 19:59 - 04:54. Astro Dark: 20:41 - 04:13

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 Penzance, Cornwall, United Kingdom (50.12,-5.54)

Generated: 22/03/26 00:23:58. Forecast: 22/03/26 to 28/03/26. Timezone: UTC+0.00