Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 25

Waxing Crescent 39%

12:20

23:04

22 Bad
23 Bad
00 Bad
01 OK
02 OK
03 OK
04 Good
05 OK
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 Good

Sun - Rise: 08:56, Set: 17:17, Transit: 13:06. Moon - Rise: 12:20, Set: 23:04. Civil Dark: 17:54 - 08:19. Nautical Dark: 18:34 - 07:39. Astro Dark: 19:12 - 07:01

Total Clouds (% Sky Obscured)

90
86
86
39
30
20
0
37
47
60
78
75
75
83
86
83
82
81
56
55
51
49
45
9

Low Clouds (% Sky Obscured)

64
65
49
7
0
0
0
37
47
60
78
75
75
83
86
83
82
81
56
55
51
49
45
9

Medium Clouds (% Sky Obscured)

23
30
22
17
14
9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High 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

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
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)

5
4
5
7
6
5
5
5
5
6
6
7
7
9
9
9
9
9
9
7
6
7
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-4
-4
-5
-4
-4
-4
-4
-4
-4
-4
-5
-5
-5
-6
-6
-6
-6
-5
-4
-2
-2
-2
-2
-2

Relative Humidity (%)

74
73
72
78
78
81
81
80
83
81
79
79
77
66
61
58
58
59
65
76
83
87
87
86

Pressure (mb)

1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1023
1023
1023
1024
1023
1023
1023
1023
1023
1024
1024
1025
1025
1026

Ozone (du)

374
374
373
374
375
375
371
368
366
366
368
367
368
368
369
372
374
375
374
372
372
374
376
380

Friday 26

Waxing Crescent 50%

12:35

00:18

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

Sun - Rise: 08:56, Set: 17:18, Transit: 13:07. Moon - Rise: 12:35, Set: 00:18. Civil Dark: 17:54 - 08:19. Nautical Dark: 18:34 - 07:40. Astro Dark: 19:12 - 07:02

Total Clouds (% Sky Obscured)

0
0
0
0
66
100
100
100
11
100
100
62
0
0
59
62
68
69
64
55
51
49
49
60

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
59
62
68
69
64
55
51
49
49
60

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
17
50
31
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
66
100
97
74
9
65
70
0
0
0
0
0
0
0
0
0
0
0
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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-2
-3
-3
-3
-5
-4
-5
-5
-3
-3
-3
-3
-2
-2
-1
2
2
2
2
1
-1
-2
-2
-3

Dew Point (°C)

-2
-3
-3
-4
-4
-4
-4
-4
-3
-3
-3
-3
-3
-4
-4
-3
-3
-3
-2
-1
-1
-2
-2
-2

Relative Humidity (%)

86
83
81
80
77
77
77
78
81
83
86
86
80
70
63
61
60
62
69
79
84
88
87
86

Pressure (mb)

1026
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1028
1028
1028
1027
1027
1027
1027
1027
1028
1028
1029
1029

Ozone (du)

380
378
375
372
370
370
369
368
369
372
376
379
382
381
376
368
361
360
361
362
361
359
359
360

Saturday 27

First Quarter 61%

12:51

01:35

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

Sun - Rise: 08:56, Set: 17:19, Transit: 13:07. Moon - Rise: 12:51, Set: 01:35. Civil Dark: 17:55 - 08:20. Nautical Dark: 18:35 - 07:40. Astro Dark: 19:13 - 07:02

Total Clouds (% Sky Obscured)

51
23
21
9
0
1
0
0
1
1
1
4
13
1
1
1
0
0
0
0
0
6
12
18

Low Clouds (% Sky Obscured)

51
23
21
9
0
0
0
0
0
0
0
1
3
0
0
0
0
0
0
0
0
6
12
18

Medium 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

High Clouds (% Sky Obscured)

0
0
0
0
0
1
0
0
1
1
1
3
2
1
1
1
0
0
0
0
0
0
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
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
5
5
4
5
5
5
5
5
5
6
5
6
7
8
9
9
9
8
7
7
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
84
83
83
80
75
74
77
83
91
92
96
98
84
73
67
64
66
71
80
91
93
94
92

Pressure (mb)

1029
1029
1029
1029
1029
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1027
1026
1026
1026
1026
1026
1026
1026
1026

Ozone (du)

359
357
355
356
356
356
354
352
351
349
348
348
348
348
347
346
344
342
341
339
337
335
333
329

Sunday 28

Waxing Gibbous 72%

13:10

02:55

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

Sun - Rise: 08:56, Set: 17:20, Transit: 13:08. Moon - Rise: 13:10, Set: 02:55. Civil Dark: 17:56 - 08:20. Nautical Dark: 18:36 - 07:40. Astro Dark: 19:14 - 07:02

Total Clouds (% Sky Obscured)

22
29
31
28
33
30
32
32
31
34
37
40
35
35
35
40
45
50
55
60
62
67
67
67

Low Clouds (% Sky Obscured)

22
29
31
28
33
30
32
32
31
34
37
40
35
35
35
40
45
50
55
60
62
67
67
67

Medium 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

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
4
9
14
23
34
41
53
60
62
67
67
67

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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-1
-1
-2
-2
-3
-4
-4
-5
-5
-6
-7
-7
-8
-9
-9
-10
-10
-8
-7
-6
-6
-7
-7
-7

Relative Humidity (%)

92
92
91
89
86
83
80
75
74
71
68
66
61
50
43
39
39
42
51
60
63
63
62
63

Pressure (mb)

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

Ozone (du)

327
326
326
325
323
321
321
319
318
318
318
318
320
321
321
321
320
320
319
319
319
319
319
319

Monday 29

Waxing Gibbous 82%

13:34

04:20

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

Sun - Rise: 08:56, Set: 17:20, Transit: 13:08. Moon - Rise: 13:34, Set: 04:20. Civil Dark: 17:57 - 08:20. Nautical Dark: 18:37 - 07:40. Astro Dark: 19:14 - 07:02

Total Clouds (% Sky Obscured)

62
56
61
70
85
86
91
91
91
81
70
57
63
75
85
85
85
76
73
69
65
56
52
38

Low Clouds (% Sky Obscured)

62
56
61
63
35
8
6
3
0
0
0
0
0
1
2
8
12
16
11
6
0
6
12
18

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
22
43
60
56
52
48
29
13
0

High Clouds (% Sky Obscured)

62
56
61
70
75
86
81
86
86
80
69
57
63
75
85
85
85
76
73
69
65
54
43
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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-4
-5
-5
-5
-5
-4
-4
-4
-4
-3
-4
-3
-3
-1
-1
1
1
2
2
3
3
3
-2
-2

Dew Point (°C)

-7
-8
-8
-9
-6
-3
-2
-2
-2
-2
-2
-2
-1
-1
-2
-1
-1
-1
-1
-0
-0
-0
-1
-1

Relative Humidity (%)

64
63
61
59
72
89
94
94
94
92
94
92
92
80
69
66
66
66
66
73
80
89
88
88

Pressure (mb)

1026
1026
1027
1027
1027
1027
1027
1027
1027
1028
1028
1029
1029
1029
1029
1029
1029
1028
1028
1028
1029
1029
1029
1030

Ozone (du)

316
314
314
312
305
302
301
299
296
292
289
287
286
286
286
287
286
286
285
288
291
293
297
301

Tuesday 30

Waxing Gibbous 79%

14:06

05:47

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

Sun - Rise: 08:56, Set: 17:21, Transit: 13:09. Moon - Rise: 14:06, Set: 05:47. Civil Dark: 17:58 - 08:20. Nautical Dark: 18:37 - 07:40. Astro Dark: 19:15 - 07:02

Total Clouds (% Sky Obscured)

29
19
10
27
44
61
67
73
76
59
33
15
24
33
39
36
33
31
32
33
33
39
45
51

Low Clouds (% Sky Obscured)

14
10
6
21
37
52
57
60
66
46
25
5
14
24
33
33
32
31
32
32
33
37
43
49

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
3
5
7
9

High Clouds (% Sky Obscured)

20
10
1
1
1
2
2
2
2
2
1
1
4
6
9
6
3
1
2
3
3
7
10
14

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
1
1
1
1
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
1
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
86
86
81
78
74
74
71
70
68
65
63
62
62
61
64
66
68
72
76
81
77
73

Pressure (mb)

1030
1030
1030
1029
1029
1029
1029
1028
1028
1028
1028
1028
1028
1028
1027
1027
1026
1026
1025
1025
1025
1025
1025
1024

Ozone (du)

305
306
306
307
310
312
315
318
321
324
325
326
326
328
329
330
331
331
332
334
337
339
341
343

Wednesday 31

Waxing Gibbous 91%

14:52

07:13

22 Bad
23 Bad
00 OK
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

Sun - Rise: 08:56, Set: 17:22, Transit: 13:09. Moon - Rise: 14:52, Set: 07:13. Civil Dark: 17:59 - 08:20. Nautical Dark: 18:38 - 07:40. Astro Dark: 19:16 - 07:03

Total Clouds (% Sky Obscured)

50
47
46
48
48
52
57
63
67
71
77
80
74
69
60
53
45
35
37
42
45

Low Clouds (% Sky Obscured)

50
47
46
48
48
52
57
63
67
71
77
80
67
53
37
46
45
35
37
42
45

Medium Clouds (% Sky Obscured)

7
3
0
0
0
0
0
0
1
1
1
1
1
2
2
13
18
21
22
19
15

High Clouds (% Sky Obscured)

10
7
3
3
4
5
4
4
4
9
13
18
25
30
40
31
21
9
6
4
2

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

Fog (%)

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

Precipitation Probability (%)

2
3
3
9
10
6
18
21
23
24
25
26
25
22
15
20
27
35
36
34
25

Precipitation Amount (mm)

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
73
76
80
80
82
82
80
76
75
73
73
72
67
62
58
59
59
59
62
64

Pressure (mb)

1024
1024
1023
1023
1023
1022
1021
1021
1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1018
1018
1018

Ozone (du)

345
343
342
340
342
343
345
343
342
340
337
334
330
330
330
330
329
329
328
327
327

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

Generated: 25/12/25 22:24:58. Forecast: 25/12/25 to 31/12/25. Timezone: UTC+1.00