Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 27

Waxing Gibbous 86%

16:54

05:25

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

Sun - Rise: 06:51, Set: 21:14, Transit: 14:03. Moon - Rise: 16:54, Set: 05:25. Civil Dark: 21:48 - 06:16. Nautical Dark: 22:31 - 05:33. Astro Dark: 23:21 - 04:43

Total Clouds (% Sky Obscured)

100
100
100
5
0
0
0
0
0
0
2
2
6
18
0
0
0
0
10
19
100
95
100
96

Low 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

Medium Clouds (% Sky Obscured)

50
40
12
5
0
0
0
0
0
0
0
0
4
12
0
0
0
0
6
6
35
95
100
87

High Clouds (% Sky Obscured)

100
75
69
5
0
0
0
0
0
0
1
2
6
1
0
0
0
0
0
0
85
6
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
1
1
1

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
1
3
4
5
6
6
7
8
8
8
9
10
9
8
7
6
6
6
4
6
6
6
7

Chance of Frost

Temperature (°C)

9
11
15
18
20
21
22
23
23
23
22
21
20
17
14
12
11
10
9
8
6
8
7
9

Feels Like (°C)

7
10
14
17
18
19
22
23
23
22
22
21
19
16
13
11
9
8
7
6
4
6
4
5

Dew Point (°C)

4
6
8
10
11
12
13
13
13
12
12
14
14
13
11
9
7
4
3
2
1
2
2
4

Relative Humidity (%)

72
67
61
59
57
56
55
54
52
50
53
65
70
78
82
80
76
69
65
65
66
69
68
68

Pressure (mb)

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

Ozone (du)

366
367
367
367
368
370
370
369
370
372
377
376
375
376
377
376
376
374
374
374
377
376
376
380

Tuesday 28

Waxing Gibbous 93%

18:06

05:39

08 Bad
09 Bad
10 Bad
11 OK
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 OK
01 OK
02 Good
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 06:49, Set: 21:15, Transit: 14:03. Moon - Rise: 18:06, Set: 05:39. Civil Dark: 21:50 - 06:14. Nautical Dark: 22:33 - 05:31. Astro Dark: 23:23 - 04:40

Total Clouds (% Sky Obscured)

59
54
53
41
41
49
55
69
72
77
57
72
73
52
51
45
37
24
0
73
75
86
96
88

Low Clouds (% Sky Obscured)

0
0
0
4
3
4
18
35
55
48
29
0
0
23
0
10
0
0
0
0
0
11
48
48

Medium Clouds (% Sky Obscured)

59
27
26
19
19
25
22
25
23
32
21
36
37
25
51
45
37
12
0
48
45
75
91
80

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
19
0
22
40
40
62
59

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
9
9
9
9
3
3
9
7

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
Light Rain
Very Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

8
0
2
0
0
0
0
1
4
0
0
6
0
4
4
4
5
4
4
36
64
58
82
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.3
0.9
1.5

Wind Speed/Direction (mph)

7
9
11
12
13
13
13
14
13
13
13
12
12
11
10
10
10
10
10
10
10
10
10
9

Chance of Frost

Temperature (°C)

9
11
13
14
16
17
18
19
19
18
18
17
16
14
13
12
12
12
12
12
12
12
12
11

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
73
70
66
63
57
55
57
63
61
65
65
73
79
84
86
84
84
83
83
88
93
92
88

Pressure (mb)

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

Ozone (du)

383
385
385
387
388
389
389
389
389
387
386
384
382
379
377
375
374
372
372
370
368
366
365
365

Wednesday 29

Waxing Gibbous 97%

19:16

05:54

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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 06:47, Set: 21:17, Transit: 14:03. Moon - Rise: 19:16, Set: 05:54. Civil Dark: 21:51 - 06:12. Nautical Dark: 22:35 - 05:28. Astro Dark: 23:26 - 04:37

Total Clouds (% Sky Obscured)

76
100
100
100
100
100
100
100
100
97
99
92
98
99
86
100
100
81
72
65
57
73
87
100

Low Clouds (% Sky Obscured)

9
0
0
0
3
0
7
43
5
26
5
6
25
0
0
1
1
1
0
1
10
10
10
2

Medium Clouds (% Sky Obscured)

76
82
55
64
58
57
57
60
80
64
57
48
34
41
25
64
47
39
18
56
57
72
71
71

High Clouds (% Sky Obscured)

35
100
100
100
100
100
100
100
99
83
92
69
95
95
71
100
100
74
66
60
47
71
85
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

Light Rain
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 (%)

60
29
6
1
0
1
4
22
27
20
25
24
21
9
4
2
3
2
0
0
0
0
1
0

Precipitation Amount (mm)

0.5
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)

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

Chance of Frost

Temperature (°C)

12
13
15
16
17
19
20
21
21
20
21
20
20
19
18
18
17
17
16
15
15
14
14
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
84
83
72
66
63
62
62
61
66
67
70
71
70
67
65
64
63
63
64
63
61
59
59

Pressure (mb)

1013
1013
1013
1013
1013
1013
1013
1013
1012
1012
1012
1012
1012
1012
1013
1013
1013
1014
1014
1014
1014
1014
1014
1015

Ozone (du)

365
365
363
360
359
360
360
360
360
359
358
357
357
356
355
354
353
352
352
353
354
354
354
354

Thursday 30

Waxing Gibbous 99%

20:27

06:11

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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 06:46, Set: 21:18, Transit: 14:03. Moon - Rise: 20:27, Set: 06:11. Civil Dark: 21:53 - 06:11. Nautical Dark: 22:37 - 05:26. Astro Dark: 23:28 - 04:35

Total Clouds (% Sky Obscured)

86
68
57
61
66
73
80
86
92
94
94
95
92
88
81
82
86
84
62
60
64
59
60
64

Low Clouds (% Sky Obscured)

1
11
1
5
0
3
3
2
8
8
14
20
14
7
0
13
25
37
41
44
50
58
60
64

Medium Clouds (% Sky Obscured)

71
65
57
61
66
65
79
86
92
92
91
84
88
88
66
39
35
38
41
36
28
34
40
46

High Clouds (% Sky Obscured)

81
62
39
39
36
35
35
35
40
42
46
47
47
40
31
44
50
56
34
25
24
13
9
1

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
2
9
5
8
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
3
8
9
14
31
32
35
38
18
3
7
10
0
1
3
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)

13
13
13
12
11
11
9
9
8
8
6
5
4
4
4
3
2
1
1
2
3
4
4
4

Chance of Frost

Temperature (°C)

13
14
15
17
18
20
21
22
22
23
22
21
21
19
17
16
15
15
14
14
13
13
12
12

Feels Like (°C)

9
10
12
14
16
18
20
21
22
22
22
22
22
19
18
16
16
15
15
16
14
13
13
13

Dew Point (°C)

6
8
9
11
12
14
15
16
16
16
16
16
17
16
15
14
14
13
13
13
12
12
12
12

Relative Humidity (%)

65
68
68
67
66
67
66
66
67
67
68
72
79
84
88
89
92
92
92
93
93
96
96
96

Pressure (mb)

1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1017
1017
1018
1018
1018
1019
1019
1019
1019
1019
1019

Ozone (du)

353
352
352
352
352
352
352
352
353
353
354
353
353
353
355
356
358
357
357
357
357
359
361
361

Friday 1

Full Moon 100%

21:37

06:32

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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 06:44, Set: 21:20, Transit: 14:03. Moon - Rise: 21:37, Set: 06:32. Civil Dark: 21:55 - 06:09. Nautical Dark: 22:39 - 05:24. Astro Dark: 23:30 - 04:32

Total Clouds (% Sky Obscured)

73
84
88
94
97
99
99
99
99
95
90
88
88
94
100
100
100
100
99
98
97
98
99
100

Low Clouds (% Sky Obscured)

73
79
84
92
95
99
93
87
80
71
62
54
48
43
38
41
45
48
50
52
55
47
35
26

Medium Clouds (% Sky Obscured)

44
41
42
56
69
81
81
86
86
57
28
3
12
19
20
35
50
65
77
84
88
91
92
93

High Clouds (% Sky Obscured)

2
2
2
25
51
76
84
87
91
75
68
57
69
83
99
96
94
92
69
42
17
40
60
78

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
8
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Light Rain

Precipitation Probability (%)

7
8
3
17
32
45
67
82
95
95
83
49
32
30
30
31
26
24
26
30
36
52
69
84

Precipitation Amount (mm)

0
0
0
0
0
0
0.3
0.4
1
0.6
0.6
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4

Wind Speed/Direction (mph)

5
6
7
9
9
9
10
10
9
9
7
7
7
6
6
6
5
5
5
5
5
5
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
15
17
18
18
18
16
15
16
15
14
13
13
14
13
13
12
11
11
9
9
9
9
9

Dew Point (°C)

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

Relative Humidity (%)

95
90
85
81
76
73
76
78
77
77
78
81
83
86
86
89
89
89
89
90
92
92
93
95

Pressure (mb)

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

Ozone (du)

360
357
357
358
360
360
360
361
361
360
360
359
357
357
356
355
355
355
355
357
359
361
361
361

Saturday 2

Waning Gibbous 98%

22:48

06:59

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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 06:42, Set: 21:21, Transit: 14:02. Moon - Rise: 22:48, Set: 06:59. Civil Dark: 21:56 - 06:07. Nautical Dark: 22:41 - 05:22. Astro Dark: 23:33 - 04:29

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
95
89
84
79
73
63
73
86
99
98
96
90
79
78
78

Low Clouds (% Sky Obscured)

41
62
88
83
80
77
75
68
61
59
61
61
59
57
53
57
64
70
71
72
72
71
68
69

Medium Clouds (% Sky Obscured)

86
85
82
85
89
95
97
98
100
87
74
61
42
25
6
2
1
0
0
2
4
11
21
35

High Clouds (% Sky Obscured)

83
94
100
97
95
94
95
97
96
65
34
7
6
5
8
29
38
38
39
41
42
41
49
53

ISS Passover

Visibility (miles)

8
6
4
1
4
7
9
9
9
9
9
9
9
9
9
9
9
8
8
8
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
Very Light Rain
Very 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

Precipitation Probability (%)

85
83
74
78
86
95
95
92
78
61
47
40
39
36
31
23
13
3
5
4
3
15
26
39

Precipitation Amount (mm)

0.5
0.4
0.3
0.3
0.4
0.8
0.9
0.7
0.5
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
98
96
98
96
95
93
89
84
79
80
82
83
87
90
93
95
95
95
96
98
98
98
98

Pressure (mb)

1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1016
1015
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1015

Ozone (du)

362
362
363
364
366
368
371
372
373
374
377
380
383
380
377
374
373
372
371
371
370
370
371
371

Sunday 3

Waning Gibbous 95%

23:55

07:33

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
00 Bad
01 Bad

Sun - Rise: 06:41, Set: 21:22, Transit: 14:02. Moon - Rise: 23:55, Set: 07:33. Civil Dark: 21:58 - 06:05. Nautical Dark: 22:43 - 05:20. Astro Dark: 23:36 - 04:27

Total Clouds (% Sky Obscured)

74
70
68
74
77
83
88
93
98
99
99
100
86
72
62
74
87
100

Low Clouds (% Sky Obscured)

74
70
68
74
77
83
81
81
80
66
56
47
47
44
42
45
51
52

Medium Clouds (% Sky Obscured)

42
43
31
31
26
22
20
23
20
20
25
25
41
46
52
61
70
78

High Clouds (% Sky Obscured)

44
35
26
16
11
5
18
30
42
64
83
100
86
72
62
74
87
100

ISS Passover

Visibility (miles)

8
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

Precipitation Type

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

Precipitation Probability (%)

48
56
56
48
45
47
55
56
56
44
38
28
22
29
38
50
60
71

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

10
11
13
14
15
16
16
16
16
16
15
14
13
12
10
8
8
8

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
88
79
71
68
64
61
62
64
65
69
73
79
83
88
95
95
95

Pressure (mb)

1015
1015
1015
1015
1014
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

371
372
373
373
374
374
375
373
371
370
368
367
366
366
366
366
366
367

Forecast for Ercé-près-Liffré, Ille-et-Vilaine, France (48.26,-1.51)

Generated: 27/04/26 08:01:46. Forecast: 27/04/26 to 03/05/26. Timezone: UTC+2.00