Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 25

Waxing Crescent 38%

11:56

22:30

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
07 Good
08 Good
09 Good
10 Good
11 Good
12 Good
13 Good
14 Good
15 Good
16 Good
17 Good

Sun - Rise: 08:48, Set: 16:32, Transit: 12:40. Moon - Rise: 11:56, Set: 22:30. Civil Dark: 17:13 - 08:07. Nautical Dark: 17:57 - 07:23. Astro Dark: 18:38 - 06:41

Total Clouds (% Sky Obscured)

0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
2
3
18
4
16
5
2
7

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)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
9
2
3
2
0
0

High Clouds (% Sky Obscured)

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

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-19
-19
-19
-19
-19
-19
-18
-18
-17
-17
-17
-16
-16
-16
-15
-15
-15
-16
-15
-15
-15
-15
-15
-16

Relative Humidity (%)

26
26
27
28
29
30
32
33
34
35
37
37
39
39
41
42
39
34
32
31
30
30
31
31

Pressure (mb)

1031
1031
1031
1031
1031
1031
1031
1031
1031
1031
1031
1030
1030
1030
1031
1031
1032
1032
1032
1031
1031
1031
1032
1032

Ozone (du)

336
333
331
331
329
329
329
324
320
317
314
311
310
307
305
305
305
304
303
303
304
305
306
305

Friday 26

Waxing Crescent 36%

12:07

23:50

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
07 Good
08 Good
09 OK
10 OK
11 OK
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad

Sun - Rise: 08:48, Set: 16:33, Transit: 12:40. Moon - Rise: 12:07, Set: 23:50. Civil Dark: 17:14 - 08:07. Nautical Dark: 17:57 - 07:23. Astro Dark: 18:38 - 06:42

Total Clouds (% Sky Obscured)

13
5
11
1
0
0
0
0
0
0
2
0
0
0
18
38
28
38
58
67
70
77
99
73

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
18
38
28
38
58
67
70
77
99
72

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)

11
2
10
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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
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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-16
-17
-17
-17
-17
-17
-16
-15
-14
-13
-12
-10
-9
-8
-6
-4
-2
-0
1
2
3
4
3
3

Relative Humidity (%)

31
30
30
29
30
31
33
35
38
42
47
53
56
62
70
83
89
88
85
86
93
94
88
86

Pressure (mb)

1033
1033
1033
1034
1034
1034
1034
1035
1034
1034
1034
1034
1034
1034
1035
1035
1035
1035
1034
1034
1033
1033
1033
1033

Ozone (du)

307
307
307
307
305
305
305
304
303
302
301
301
299
298
299
299
300
299
299
298
296
296
294
293

Saturday 27

First Quarter 49%

12:18

01:11

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

Sun - Rise: 08:48, Set: 16:34, Transit: 12:41. Moon - Rise: 12:18, Set: 01:11. Civil Dark: 17:14 - 08:07. Nautical Dark: 17:58 - 07:23. Astro Dark: 18:39 - 06:42

Total Clouds (% Sky Obscured)

78
61
56
63
61
69
65
67
69
41
45
27
31
38
22
11
0
0
0
1
1
1
2
1

Low Clouds (% Sky Obscured)

77
61
56
63
61
69
65
66
69
41
42
27
31
38
22
11
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
1
0
0
0
0
1
1
1
1
1
0
4
0
0
0
0
1
1
1
2
1

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
86
91
93
93
91
93
93
83
76
80
84
91
92
94
94
91
78
65
59
58
63
69
71

Pressure (mb)

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

Ozone (du)

295
296
296
296
295
293
292
291
291
290
289
288
287
286
286
286
286
285
284
284
284
282
280
278

Sunday 28

Waxing Gibbous 61%

12:32

02:36

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

Sun - Rise: 08:48, Set: 16:34, Transit: 12:41. Moon - Rise: 12:32, Set: 02:36. Civil Dark: 17:15 - 08:07. Nautical Dark: 17:59 - 07:23. Astro Dark: 18:40 - 06:42

Total Clouds (% Sky Obscured)

2
1
1
1
2
2
3
4
5
6
21
37
47
59
62
71
76
79
77
63
52
42
67
78

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
16
33
47
59
62
71
76
79
77
63
52
42
62
70

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)

2
1
1
1
2
2
3
4
5
6
4
2
0
0
0
0
4
8
12
8
4
1
2
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
0
0
0
0
0
0
0
0
0
0
2
3
4
5
5
5
12
10

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
70
67
66
63
60
57
55
55
57
62
70
83
92
94
93
93
85
79
79
79
82
89
83

Pressure (mb)

1032
1032
1032
1031
1031
1030
1030
1030
1029
1029
1029
1028
1028
1027
1027
1027
1027
1027
1027
1026
1026
1025
1025
1025

Ozone (du)

277
277
278
278
279
279
277
279
279
279
277
277
277
280
281
282
284
287
292
293
291
290
286
286

Monday 29

Waxing Gibbous 72%

12:50

04:06

18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 OK
01 OK
02 OK
03 OK
04 OK
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

Sun - Rise: 08:48, Set: 16:35, Transit: 12:42. Moon - Rise: 12:50, Set: 04:06. Civil Dark: 17:16 - 08:07. Nautical Dark: N/A - 07:23. Astro Dark: 18:40 - 06:42

Total Clouds (% Sky Obscured)

80
79
79
76
68
52
34
25
20
20
27
35
42
46
70
100
98
96
94
96
98
100
95
93

Low Clouds (% Sky Obscured)

74
73
71
68
57
39
26
21
15
10
23
35
42
36
63
89
89
89
93
96
96
96
86
75

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
7
10
15
8
8
8
16
20
27
22
16

High Clouds (% Sky Obscured)

3
2
1
0
0
0
0
0
0
0
0
0
0
2
2
2
2
2
2
23
41
46
19
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

13
12
8
4
3
13
1
3
5
6
7
5
10
19
23
26
25
25
24
23
22
19
21
22

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
8
7
6
6
6
6
7
7
7
7
7
7
8
8
7
8
8
8
8
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
2
1
1
2
1
1
2
1
1
1
0
0
0
0
0
0
1
1
1
2
2
2
2

Dew Point (°C)

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

Relative Humidity (%)

83
85
78
79
80
75
78
80
73
72
67
63
67
69
71
72
72
71
67
66
67
66
67
68

Pressure (mb)

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

Ozone (du)

284
283
282
283
284
286
288
286
287
285
284
283
283
286
288
289
291
299
308
316
323
331
338
339

Tuesday 30

Waxing Gibbous 82%

13:17

05:40

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad

Sun - Rise: 08:48, Set: 16:36, Transit: 12:42. Moon - Rise: 13:17, Set: 05:40. Civil Dark: 17:17 - 08:07. Nautical Dark: 18:00 - 07:24. Astro Dark: 18:41 - 06:42

Total Clouds (% Sky Obscured)

90
90
87
84
83
82
81
88
95
100
99
98
97
97
97
96
97
98
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

62
63
63
65
71
74
76
78
80
83
86
88
89
92
95
96
97
98
100
99
97
90
81
73

Medium Clouds (% Sky Obscured)

9
6
2
0
2
6
9
23
37
51
61
69
74
68
63
64
64
61
60
73
87
100
100
100

High Clouds (% Sky Obscured)

5
7
10
12
22
30
37
51
65
79
59
34
9
8
5
6
23
38
53
66
80
93
95
98

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
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
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

20
31
36
40
33
26
20
18
14
2
7
9
8
26
36
45
47
45
35
37
35
33
32
32

Precipitation Amount (mm)

0
0
0
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
72
72
73
74
73
72
69
72
72
74
77
79
80
80
80
80
77
73
70
71
70
70
75

Pressure (mb)

1025
1024
1024
1025
1025
1025
1025
1025
1024
1024
1024
1024
1024
1023
1023
1023
1023
1022
1022
1022
1021
1020
1020
1019

Ozone (du)

340
341
340
340
339
340
340
341
343
344
346
344
342
340
337
334
331
330
330
329
335
340
345
349

Wednesday 31

Waxing Gibbous 91%

13:58

07:11

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 08:48, Set: 16:37, Transit: 12:43. Moon - Rise: 13:58, Set: 07:11. Civil Dark: 17:18 - 08:07. Nautical Dark: 18:01 - 07:24. Astro Dark: 18:42 - 06:42

Total Clouds (% Sky Obscured)

100
99
99
98
99
99
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

62
57
53
52
62
73
81
74
68
62
75
87
100
89
77
64
57
44
34

Medium Clouds (% Sky Obscured)

100
99
98
97
98
99
100
100
100
100
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

100
81
62
43
60
75
85
81
78
81
82
81
82
55
28
1
22
40
60

ISS Passover

Visibility (miles)

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

Fog (%)

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
Snow
Snow
Light Rain
Light Rain
Light Rain
Snow
Snow
Snow
Snow

Precipitation Probability (%)

31
31
31
29
31
31
30
33
32
26
52
74
95
95
95
95
90
79
73

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.7
1
1
0.8
0.5
0.4
0.3

Wind Speed/Direction (mph)

4
4
4
4
4
4
5
5
5
6
6
8
10
13
11
9
7
8
9

Chance of Frost

Temperature (°C)

4
3
3
3
2
2
2
2
2
2
2
3
3
3
3
3
2
3
3

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
85
88
89
93
91
89
88
91
93
96
93
89
86
89
93
94
86
77

Pressure (mb)

1019
1018
1018
1017
1016
1015
1015
1014
1013
1012
1010
1009
1008
1006
1006
1005
1004
1004
1003

Ozone (du)

353
358
358
358
358
370
381
393
388
384
379
378
376
375
377
379
381
384
388

Forecast for Kerkelanden, Gemeente Hilversum, Netherlands (52.22,5.15)

Generated: 25/12/25 18:34:42. Forecast: 25/12/25 to 31/12/25. Timezone: UTC+1.00