Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 28

Waxing Gibbous 93%

18:06

05:39

08 Bad
09 Bad
10 OK
11 Good
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 OK
18 OK
19 OK
20 OK
21 OK
22 Bad
23 Bad
00 Bad
01 Bad
02 OK
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)

81
80
47
7
56
64
47
50
43
30
37
37
22
35
48
57
100
48
30
35
51
65
73
51

Low Clouds (% Sky Obscured)

7
0
0
0
45
44
34
39
43
0
0
4
0
23
15
23
48
0
0
0
0
0
21
7

Medium Clouds (% Sky Obscured)

17
38
28
4
29
27
18
16
0
16
19
17
9
11
48
57
68
48
30
35
26
32
33
51

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
75
0
0
1
0
0
2
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
0
1
0
0
0
8
3
4
3
1
3
2
9
22
34
59
46
24
56
86
68
58
37

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0
0.3
1
0.3
0.3
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

9
11
13
15
16
17
18
18
18
18
18
16
14
13
11
10
10
10
10
10
9
10
10
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
65
59
57
58
57
55
54
64
65
64
65
73
80
90
95
91
84
82
85
90
93
93
93

Pressure (mb)

1019
1019
1020
1019
1019
1018
1018
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1015
1015
1014
1014
1014
1014
1014

Ozone (du)

389
390
392
393
395
396
396
398
398
397
397
396
394
392
391
391
390
390
390
390
391
391
389
387

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)

56
45
38
82
100
100
100
100
100
100
89
94
100
100
96
100
99
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
34
10
32
30
0
0
50
81
57
62
56
43
41
29
25
10
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

56
45
38
34
14
100
100
100
86
90
89
81
96
37
47
51
64
68
63
58
53
62
77
83

High Clouds (% Sky Obscured)

0
0
0
1
100
100
100
100
86
31
37
59
96
100
93
100
98
100
100
99
100
100
100
100

ISS Passover

Visibility (miles)

5
9
9
9
9
9
9
9
9
4
8
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

47
50
37
20
9
5
3
4
24
44
46
31
9
3
1
1
0
1
0
0
0
0
0
1

Precipitation Amount (mm)

0
0.3
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
11
12
14
14
16
17
16
16
14
11
9
9
9
13
14
17
18
17
16
15
14
14
13

Chance of Frost

Temperature (°C)

10
11
13
15
17
19
19
19
19
20
19
18
18
17
17
17
17
16
15
15
14
14
13
13

Feels Like (°C)

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

Dew Point (°C)

9
10
12
13
14
13
13
13
13
15
15
14
13
12
11
10
10
9
8
7
6
5
5
4

Relative Humidity (%)

93
93
90
87
79
69
69
69
67
72
78
76
74
71
65
64
65
64
59
57
56
56
56
56

Pressure (mb)

1014
1014
1014
1014
1014
1013
1013
1013
1013
1013
1012
1013
1012
1012
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014

Ozone (du)

386
383
380
379
375
373
370
369
367
367
367
366
364
363
362
361
359
358
358
358
358
358
358
358

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)

100
100
100
100
99
98
98
99
100
100
97
93
94
85
82
92
98
99
74
99
100
94
61
78

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
73
48
29
41
47
63
75
86
95
74
83
89
83
61
78

Medium Clouds (% Sky Obscured)

95
74
78
81
80
58
80
81
83
80
77
73
84
58
28
73
91
83
31
88
88
75
20
21

High Clouds (% Sky Obscured)

100
100
100
100
98
95
95
98
100
100
38
55
48
16
6
5
9
10
10
43
40
21
2
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
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
1
1
3
17
15
11
12
7
13
17
26
37
27
10
9
10
7
6
6
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)

13
14
13
14
13
11
10
10
10
9
9
9
7
6
5
5
6
7
7
6
6
7
6
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
8
10
12
14
17
18
20
19
19
19
18
18
17
16
16
15
14
14
15
14
13
13
14

Dew Point (°C)

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

Relative Humidity (%)

61
65
64
62
62
60
60
59
58
59
63
72
78
86
89
89
92
92
95
95
96
95
95
95

Pressure (mb)

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

Ozone (du)

358
359
360
360
359
358
356
356
356
356
356
355
356
359
361
363
363
362
362
362
363
364
364
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)

92
87
89
97
96
95
98
96
74
96
91
87
86
87
88
93
97
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

74
69
65
61
57
49
47
38
24
24
16
9
9
15
14
17
20
25
42
58
73
81
85
90

Medium Clouds (% Sky Obscured)

57
27
34
24
15
4
15
29
40
39
39
75
78
70
55
49
47
97
73
93
57
77
97
100

High Clouds (% Sky Obscured)

2
2
2
20
40
62
67
76
74
71
53
35
41
50
58
72
86
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

5
3
11
41
51
54
56
58
54
55
56
57
59
50
48
44
36
13
23
21
25
46
44
34

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
14
16
17
18
19
19
19
19
20
19
18
16
14
13
13
12
12
11
11
11
11
11
10

Feels Like (°C)

13
14
16
17
18
18
18
18
19
20
18
18
16
12
12
11
11
10
10
10
9
9
9
8

Dew Point (°C)

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

Relative Humidity (%)

95
93
87
85
83
81
78
78
76
77
81
85
93
98
98
98
98
98
98
98
98
96
93
93

Pressure (mb)

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

Ozone (du)

358
357
357
358
358
356
355
355
354
355
355
354
354
356
359
362
363
363
366
369
371
372
374
377

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
99
99
99
100
100
100
100
86
70
57
70
84
97
97
97
97
86
76
59

Low Clouds (% Sky Obscured)

86
77
68
68
69
66
65
64
66
65
63
59
54
52
49
56
63
67
71
75
82
70
57
42

Medium Clouds (% Sky Obscured)

86
66
52
72
86
96
90
84
76
71
66
61
38
17
0
5
11
15
35
50
66
49
32
20

High Clouds (% Sky Obscured)

100
100
100
96
100
90
95
95
95
96
96
94
64
34
6
30
54
79
55
32
15
12
12
11

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

Precipitation Probability (%)

48
50
37
54
64
79
95
95
86
75
68
66
62
50
26
22
17
1
6
7
5
6
5
5

Precipitation Amount (mm)

0
0
0
0
0.2
0.6
1.1
1
0.4
0.3
0.3
0.4
0.4
0.2
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
10
10
10
10
10
10
10
11
11
11
11
11
11
10
10
10
10
9
10
10
10
10
10

Relative Humidity (%)

91
86
79
73
68
65
63
69
76
83
83
82
80
86
89
93
95
96
96
98
96
96
96
96

Pressure (mb)

1016
1016
1016
1016
1015
1015
1015
1014
1014
1014
1014
1013
1013
1014
1014
1014
1014
1014
1014
1014
1013
1013
1013
1013

Ozone (du)

378
378
379
377
374
373
372
372
373
374
373
372
371
371
372
372
372
371
371
372
373
375
373
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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 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)

62
60
67
70
74
77
74
70
69
70
72
73
71
69
68
73
78
84
81
76
73
72
73
72

Low Clouds (% Sky Obscured)

49
56
63
59
55
50
46
42
38
42
46
50
49
47
45
51
58
62
59
55
52
54
53
52

Medium Clouds (% Sky Obscured)

28
49
63
60
47
33
40
46
51
54
56
58
58
60
62
58
52
47
33
20
6
11
14
17

High Clouds (% Sky Obscured)

12
12
15
15
15
15
9
9
13
18
24
25
36
35
34
39
43
38
39
39
35
30
40
45

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
8
7
8
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 (%)

9
8
5
10
12
11
24
35
43
42
34
31
26
18
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
9
10
10
11
11
12
16
16
15
15
16
16
12
12
11
11
10
9
6
6
6
6
6

Dew Point (°C)

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

Relative Humidity (%)

96
87
79
71
66
61
55
55
53
52
59
67
76
82
88
93
93
95
95
93
93
95
95
93

Pressure (mb)

1013
1013
1014
1014
1013
1013
1013
1013
1012
1012
1012
1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

370
371
372
374
373
373
373
373
374
374
376
377
379
380
382
383
386
388
390
389
388
386
386
386

Monday 4

Waning Gibbous 90%

00:56

No Set

Sun - Rise: 06:39, Set: 21:24, Transit: 14:02. Moon - Rise: 00:56, Set: No Set. Civil Dark: 21:59 - 06:04. Nautical Dark: 22:45 - 05:18. Astro Dark: 23:38 - 04:24

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

Generated: 28/04/26 08:32:16. Forecast: 28/04/26 to 04/05/26. Timezone: UTC+2.00