Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 27

First Quarter 49%

12:06

01:09

07 Good
08 Good
09 Good
10 Good
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 OK

Sun - Rise: 08:43, Set: 16:35, Transit: 12:39. Moon - Rise: 12:06, Set: 01:09. Civil Dark: 17:15 - 08:03. Nautical Dark: 17:58 - 07:20. Astro Dark: 18:39 - 06:39

Total Clouds (% Sky Obscured)

0
0
0
12
53
78
89
66
72
81
71
83
85
89
83
77
76
78
85
87
90
85
71
24

Low Clouds (% Sky Obscured)

0
0
0
12
29
34
38
52
40
54
60
78
81
67
58
48
50
63
76
80
85
73
63
23

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
1
10
53
70
34
41
8
0
1
1
1
3
4
31
14
22
19
8
18
2
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
1
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
6
7
8
7
7
7
6
6
6
6
6
4
3
4
5
5
5
5
5
5
4
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-16
-14
-12
-9
-7
-5
-3
-1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0

Relative Humidity (%)

37
42
50
59
63
66
70
79
89
94
96
98
96
94
93
96
94
94
94
94
93
94
94
94

Pressure (mb)

1033
1033
1034
1034
1035
1034
1033
1033
1033
1033
1033
1033
1033
1033
1033
1033
1033
1033
1032
1033
1033
1032
1032
1032

Ozone (du)

299
299
299
299
300
300
299
298
298
298
296
295
296
296
296
295
297
298
299
299
299
298
296
295

Sunday 28

Waxing Gibbous 61%

12:18

02:33

07 Bad
08 Bad
09 OK
10 Good
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 Good
04 Good
05 Good
06 Good

Sun - Rise: 08:43, Set: 16:36, Transit: 12:39. Moon - Rise: 12:18, Set: 02:33. Civil Dark: 17:16 - 08:03. Nautical Dark: 17:59 - 07:20. Astro Dark: 18:40 - 06:39

Total Clouds (% Sky Obscured)

47
56
43
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
1
0
0
0
1
0

Low Clouds (% Sky Obscured)

44
53
41
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)

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
0
0
0
0
0
0
1
0
0
0
1
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
100
100
100
98
15
10
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
6
6
5
5
6
6
6
6
6
6
6
6
5
5
6
6
5
5
4
4
5
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

0
-1
-1
-1
-1
-1
-1
-1
-1
-3
-4
-5
-6
-6
-7
-8
-8
-9
-10
-10
-11
-11
-12
-12

Relative Humidity (%)

96
96
96
92
86
80
73
72
73
73
73
70
68
67
64
62
61
58
55
54
52
50
49
49

Pressure (mb)

1032
1032
1033
1033
1033
1032
1032
1031
1031
1031
1030
1030
1030
1030
1030
1029
1029
1029
1028
1028
1027
1027
1027
1027

Ozone (du)

294
294
291
290
288
285
281
282
283
282
280
281
281
283
284
283
281
279
279
278
279
279
278
280

Monday 29

Waxing Gibbous 72%

12:33

04:02

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

Sun - Rise: 08:43, Set: 16:37, Transit: 12:40. Moon - Rise: 12:33, Set: 04:02. Civil Dark: 17:17 - 08:03. Nautical Dark: 18:00 - 07:20. Astro Dark: 18:40 - 06:40

Total Clouds (% Sky Obscured)

4
7
3
8
30
66
74
81
79
81
83
81
80
80
98
55
39
58
59
41
39
41
42
43

Low Clouds (% Sky Obscured)

0
0
0
5
28
59
69
72
74
77
82
81
80
80
96
55
39
58
56
41
39
41
42
43

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
12
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

4
7
3
2
0
3
4
4
1
1
3
1
2
3
3
3
0
2
2
3
2
1
1
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
9
9
9

Fog (%)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-12
-10
-8
-5
-4
-2
-1
1
2
2
1
1
0
-0
-1
-0
-0
-2
-2
-2
-2
-1
-1
-1

Relative Humidity (%)

50
57
69
78
80
83
83
88
94
94
93
94
85
83
79
80
80
73
73
76
81
84
86
88

Pressure (mb)

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

Ozone (du)

282
286
286
286
289
292
294
292
293
291
289
287
286
286
284
287
286
285
282
283
282
281
279
278

Tuesday 30

Waxing Gibbous 82%

12:52

05:34

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

Sun - Rise: 08:43, Set: 16:38, Transit: 12:40. Moon - Rise: 12:52, Set: 05:34. Civil Dark: 17:18 - 08:03. Nautical Dark: 18:01 - 07:20. Astro Dark: 18:41 - 06:40

Total Clouds (% Sky Obscured)

38
35
41
41
46
51
65
81
100
78
55
28
42
53
68
78
85
90
93
93
94
94
94
95

Low Clouds (% Sky Obscured)

38
35
29
30
31
32
53
74
94
71
48
25
37
49
60
68
76
84
84
85
84
77
70
66

Medium Clouds (% Sky Obscured)

0
0
0
1
2
3
13
21
30
27
15
0
3
8
11
15
18
21
23
24
27
38
43
46

High Clouds (% Sky Obscured)

1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
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
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
2
5
7
10
17
9
6
4
1
7
9
11
13
25
23
14
20
37

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
84
81
74
68
65
68
68
69
73
76
80
83
84
86
86
86
88
86
86
83
88
85
82

Pressure (mb)

1029
1029
1030
1030
1030
1030
1030
1029
1029
1029
1029
1028
1028
1028
1028
1027
1026
1026
1025
1025
1024
1023
1023
1022

Ozone (du)

277
276
276
278
284
286
289
292
295
303
311
325
335
336
333
331
331
330
329
330
330
328
324
323

Wednesday 31

Waxing Gibbous 91%

13:20

07:04

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

Sun - Rise: 08:43, Set: 16:39, Transit: 12:41. Moon - Rise: 13:20, Set: 07:04. Civil Dark: 17:19 - 08:03. Nautical Dark: 18:02 - 07:20. Astro Dark: 18:42 - 06:40

Total Clouds (% Sky Obscured)

85
66
80
83
91
93
92
88
82
86
90
95
73
72
72
82
90
95
96
95
94
96
98
99

Low Clouds (% Sky Obscured)

61
45
64
65
70
71
70
69
62
66
70
76
63
62
66
72
77
82
79
79
78
84
87
89

Medium Clouds (% Sky Obscured)

39
23
18
21
26
31
25
21
13
16
18
18
2
1
0
9
8
7
6
6
5
0
5
5

High Clouds (% Sky Obscured)

5
6
9
14
20
25
21
17
12
29
48
64
1
1
1
1
0
0
0
0
0
0
1
3

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 (%)

29
32
33
29
20
24
23
20
19
20
18
3
12
15
16
16
14
13
26
35
41
38
35
33

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
77
82
80
72
71
69
65
65
66
68
69
72
76
77
82
83
83
83
83
83
83
83
85

Pressure (mb)

1021
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1022
1022
1024
1024
1024
1024
1023
1023
1023
1022
1022
1021
1021

Ozone (du)

323
322
325
326
328
326
329
328
330
329
326
323
322
319
315
312
310
308
306
311
315
320
322
325

Thursday 1

Waxing Gibbous 97%

14:02

07:04

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

Sun - Rise: 08:43, Set: 16:40, Transit: 12:41. Moon - Rise: 14:02, Set: 07:04. Civil Dark: 17:20 - 08:03. Nautical Dark: 18:03 - 07:20. Astro Dark: 18:43 - 06:40

Total Clouds (% Sky Obscured)

97
95
92
83
72
52
66
83
100
99
98
95
93
93
92
93
95
95
85
74
64
73
79
90

Low Clouds (% Sky Obscured)

87
87
87
75
61
39
57
77
97
96
95
92
84
81
82
81
81
79
69
60
51
63
75
86

Medium Clouds (% Sky Obscured)

3
2
1
2
6
12
17
18
24
30
36
42
46
46
46
62
77
91
74
57
36
37
42
49

High Clouds (% Sky Obscured)

2
2
1
1
1
0
0
0
0
0
0
3
4
13
15
22
20
17
9
5
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
8
6
5
6
8
9
6
3
0
3
6

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
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

30
27
23
19
16
8
17
21
23
22
18
10
27
39
49
55
53
41
29
26
29
31
27
14

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

8
9
10
10
11
11
11
11
12
12
12
13
12
13
13
13
13
13
13
11
10
9
8
7

Chance of Frost

Temperature (°C)

4
4
4
4
5
5
5
5
5
5
5
5
5
5
5
5
5
5
4
4
3
3
3
2

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
80
77
76
75
75
75
73
73
74
75
76
76
82
86
93
85
76
68
76
85
96
96
94

Pressure (mb)

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

Ozone (du)

327
331
335
338
339
339
339
345
350
356
359
363
366
370
374
378
373
367
362
363
364
365
367
370

Friday 2

Waxing Gibbous 100%

15:04

08:21

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
00 Bad

Sun - Rise: 08:42, Set: 16:41, Transit: 12:42. Moon - Rise: 15:04, Set: 08:21. Civil Dark: 17:21 - 08:03. Nautical Dark: 18:03 - 07:20. Astro Dark: 18:44 - 06:40

Total Clouds (% Sky Obscured)

88
87
86
85
82
83
90
95
100
100
100
100
100
100
100
98
96
94

Low Clouds (% Sky Obscured)

85
87
86
83
76
70
69
70
70
74
76
78
80
83
88
91
95
94

Medium Clouds (% Sky Obscured)

39
29
18
21
24
34
56
77
100
99
99
98
99
99
100
95
90
85

High Clouds (% Sky Obscured)

0
1
1
24
40
47
39
30
21
24
31
42
44
48
49
48
42
32

ISS Passover

Visibility (miles)

9
6
3
0
3
6
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain
None

Precipitation Probability (%)

13
14
15
24
25
20
17
15
13
24
29
27
37
44
47
56
57
55

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

2
2
2
2
3
4
5
5
5
5
4
4
4
3
2
2
2
3

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
94
94
94
86
79
71
71
71
69
75
79
82
82
80
80
83
88

Pressure (mb)

1016
1016
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1015
1015
1015
1015
1014
1013

Ozone (du)

373
374
375
377
375
373
371
366
360
354
350
345
340
323
305
287
293
299

Forecast for Eindhoven, Gemeente Eindhoven, Netherlands (51.44,5.48)

Generated: 27/12/25 07:14:20. Forecast: 27/12/25 to 02/01/26. Timezone: UTC+1.00