Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 6

Waning Gibbous 93%

17:28

10:50

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: 08:32, Set: 16:27, Transit: 12:29. Moon - Rise: 17:28, Set: 10:50. Civil Dark: 17:07 - 07:52. Nautical Dark: 17:50 - 07:08. Astro Dark: 18:31 - 06:28

Total Clouds (% Sky Obscured)

100
100
100
98
100
95
96
96
97
84
97
100
94
85
100
100
100
94
94
90
83
76
77
100

Low Clouds (% Sky Obscured)

97
97
85
90
75
82
94
85
95
81
88
95
82
78
81
79
91
85
82
74
69
71
73
68

Medium Clouds (% Sky Obscured)

76
66
64
67
100
90
72
72
79
39
58
98
51
78
100
71
100
80
32
25
14
1
0
0

High Clouds (% Sky Obscured)

5
61
20
40
100
30
14
71
18
6
13
91
20
22
62
58
100
1
0
0
0
0
1
100

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

3
5
4
6
38
85
85
35
17
8
47
55
60
68
65
64
66
60
24
21
13
5
4
2

Precipitation Amount (mm)

0
0
0
0
0
0.6
0.6
0
0
0
0
0.2
0.3
0.3
0
0.3
0.4
0.3
0
0
0
0
0
0

Wind Speed/Direction (mph)

16
14
13
13
15
15
15
16
16
14
14
15
15
15
16
15
15
14
14
15
14
14
14
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
85
88
86
85
87
91
93
85
87
85
85
85
88
88
95
93
93
90
87
85
87
87
90

Pressure (mb)

1001
1001
1001
1001
1001
1000
1000
1000
1000
1000
1000
1001
1001
1001
1002
1002
1003
1003
1003
1004
1004
1005
1005
1006

Ozone (du)

295
295
295
290
287
286
287
288
287
286
286
280
281
282
283
287
290
292
293
293
283
278
275
275

Sunday 7

Waning Gibbous 86%

18:55

11:35

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: 08:33, Set: 16:26, Transit: 12:30. Moon - Rise: 18:55, Set: 11:35. Civil Dark: 17:07 - 07:53. Nautical Dark: 17:50 - 07:09. Astro Dark: 18:31 - 06:29

Total Clouds (% Sky Obscured)

97
89
85
87
94
98
99
100
100
100
100
100
100
100
100
100
100
100
100
90
96
98
85
100

Low Clouds (% Sky Obscured)

69
76
80
83
93
88
94
100
94
74
69
100
84
88
92
96
79
83
83
50
47
49
60
59

Medium Clouds (% Sky Obscured)

37
43
11
35
36
3
36
42
91
100
100
99
100
100
100
38
29
40
29
7
0
28
0
2

High Clouds (% Sky Obscured)

83
35
13
35
64
91
83
100
100
80
41
100
100
100
100
100
98
100
100
53
79
89
17
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
3
2
4
5
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

2
1
5
2
4
8
12
2
4
13
48
89
95
95
95
95
67
7
4
6
3
2
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.4
0.9
1.5
1.2
1
0.3
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
91
91
91
91
93
93
88
88
90
93
95
95
96
93
89
87
84
83
86
90
91
95

Pressure (mb)

1006
1006
1007
1007
1008
1007
1007
1007
1006
1006
1006
1005
1004
1003
1003
1003
1003
1004
1005
1006
1007
1008
1008
1009

Ozone (du)

276
275
276
274
274
274
274
273
273
274
273
274
273
274
276
280
282
284
286
288
289
292
291
292

Monday 8

Waning Gibbous 77%

20:25

12:05

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: 08:34, Set: 16:26, Transit: 12:30. Moon - Rise: 20:25, Set: 12:05. Civil Dark: 17:07 - 07:54. Nautical Dark: 17:50 - 07:10. Astro Dark: 18:31 - 06:30

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
94
76
77
87
83
90
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

79
65
66
72
69
82
81
80
69
73
68
72
61
76
85
82
76
52
52
67
80
73
67
62

Medium Clouds (% Sky Obscured)

61
100
85
100
100
100
100
100
100
100
100
91
75
60
3
0
0
0
13
85
100
99
99
98

High Clouds (% Sky Obscured)

100
100
100
100
97
99
100
100
100
100
30
77
45
60
51
54
55
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
7
9
9
4
3
3
5
6
8
7
6
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
Very Light Rain
Light Rain
None
Very Light Rain
Light Rain
Light Rain
Light Rain
None
None
Very Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
3
1
3
16
61
84
51
76
95
95
95
80
63
53
27
5
0
1
0
0
4
6
11

Precipitation Amount (mm)

0
0
0
0
0
0.3
0.5
0
0.3
0.6
0.5
1.1
0
0
0.2
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
93
91
95
93
93
93
93
93
95
96
96
96
90
87
87
91
96
90
90
91
91
90
90

Pressure (mb)

1010
1010
1011
1011
1011
1010
1010
1010
1010
1010
1011
1010
1010
1011
1011
1012
1012
1013
1014
1014
1014
1014
1013
1013

Ozone (du)

291
291
291
292
295
296
296
300
305
309
311
314
320
319
321
321
320
318
312
309
304
301
296
294

Tuesday 9

Waning Gibbous 67%

21:51

12:25

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: 08:35, Set: 16:26, Transit: 12:31. Moon - Rise: 21:51, Set: 12:25. Civil Dark: 17:06 - 07:55. Nautical Dark: 17:50 - 07:11. Astro Dark: 18:31 - 06:31

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

65
69
77
79
81
81
69
53
41
55
74
91
81
86
83
85
89
92
95
97
99
86
72
62

Medium Clouds (% Sky Obscured)

99
96
100
100
100
100
100
100
100
93
97
95
93
70
71
55
68
85
91
94
89
75
67
56

High Clouds (% Sky Obscured)

100
100
100
100
100
93
100
100
100
100
100
100
100
100
100
67
33
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

25
35
47
52
72
76
65
59
41
36
28
16
15
10
7
6
6
10
15
17
19
26
44
27

Precipitation Amount (mm)

0
0
0
0
0.3
0.4
0.3
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

11
11
11
11
12
12
12
12
12
13
13
13
13
13
13
13
13
13
13
13
13
12
12
12

Feels Like (°C)

7
7
7
7
7
7
7
7
8
7
8
8
8
7
8
7
7
8
7
7
8
8
9
8

Dew Point (°C)

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

Relative Humidity (%)

88
87
87
86
81
81
77
77
77
72
71
69
68
66
65
64
65
66
68
71
76
81
86
89

Pressure (mb)

1012
1012
1012
1012
1011
1011
1010
1009
1009
1008
1008
1008
1008
1008
1008
1008
1008
1009
1009
1010
1010
1011
1012
1013

Ozone (du)

290
284
283
282
282
281
284
284
284
283
281
279
280
279
280
281
281
279
279
279
278
279
279
280

Wednesday 10

Waning Gibbous 57%

23:12

12:39

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

Sun - Rise: 08:36, Set: 16:26, Transit: 12:31. Moon - Rise: 23:12, Set: 12:39. Civil Dark: 17:06 - 07:56. Nautical Dark: 17:50 - 07:12. Astro Dark: 18:31 - 06:32

Total Clouds (% Sky Obscured)

71
68
77
85
92
100
100
96
100
75
50
30
70
68
68
66
63
60
54
47
35
38
46
49

Low Clouds (% Sky Obscured)

36
39
28
31
33
38
36
34
34
27
17
6
53
53
53
53
49
42
26
24
19
18
15
17

Medium Clouds (% Sky Obscured)

46
40
74
78
80
88
91
87
98
68
50
6
12
11
12
9
5
0
0
0
0
3
5
6

High Clouds (% Sky Obscured)

0
0
0
33
67
100
100
96
100
68
37
5
6
11
15
15
14
15
12
8
3
2
1
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 (%)

6
2
0
0
0
0
0
0
0
0
0
0
1
1
0
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
93
93
91
87
84
83
81
83
85
88
88
91
93
93
95
95
96
98
96
96
94
96
96

Pressure (mb)

1013
1014
1016
1017
1018
1018
1019
1019
1020
1021
1021
1022
1023
1018
1019
1019
1019
1020
1020
1021
1021
1021
1022
1022

Ozone (du)

282
283
282
281
282
282
282
283
282
282
281
280
280
285
289
294
299
303
308
309
310
311
309
308

Thursday 11

Third Quarter 46%

00:28

12:50

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

Sun - Rise: 08:37, Set: 16:26, Transit: 12:31. Moon - Rise: 00:28, Set: 12:50. Civil Dark: 17:06 - 07:57. Nautical Dark: 17:50 - 07:13. Astro Dark: 18:31 - 06:33

Total Clouds (% Sky Obscured)

62
68
75
77
74
75
63
40
35
34
31
30
35
40
50
45
33
20
38
61
85
89
93
97

Low Clouds (% Sky Obscured)

10
12
18
23
29
35
30
28
22
19
16
13
12
10
7
4
2
1
1
3
7
12
16
21

Medium Clouds (% Sky Obscured)

5
6
4
6
4
10
10
7
0
4
8
14
18
28
40
34
26
16
34
49
65
46
25
11

High Clouds (% Sky Obscured)

2
4
6
27
58
75
56
35
17
18
16
15
35
40
50
45
33
5
33
61
85
89
93
92

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 (%)

1
2
0
6
7
7
9
11
12
5
3
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)

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

Chance of Frost

Temperature (°C)

6
6
7
7
7
8
9
9
8
8
7
7
6
6
6
5
5
5
5
5
5
5
5
4

Feels Like (°C)

6
6
6
6
6
6
5
8
8
7
7
7
6
4
4
5
4
4
4
3
3
3
3
2

Dew Point (°C)

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

Relative Humidity (%)

96
94
94
96
90
87
81
84
87
90
91
91
91
93
91
91
91
91
90
91
89
89
91
91

Pressure (mb)

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

Ozone (du)

306
306
306
306
306
306
306
307
308
308
309
309
309
310
311
312
312
313
313
313
313
314
312
310

Friday 12

Waning Crescent 44%

01:42

13:00

07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 OK
15 OK
16 OK
17 OK
18 OK
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 08:38, Set: 16:26, Transit: 12:32. Moon - Rise: 01:42, Set: 13:00. Civil Dark: 17:06 - 07:58. Nautical Dark: 17:50 - 07:14. Astro Dark: 18:31 - 06:33

Total Clouds (% Sky Obscured)

95
94
92
86
81
71
55
39
23
28
35
42
60
75
91
92
93
95

Low Clouds (% Sky Obscured)

35
50
67
70
64
60
46
34
23
23
23
23
41
57
71
71
75
78

Medium Clouds (% Sky Obscured)

8
4
0
0
0
0
0
1
1
6
9
15
29
41
58
61
66
72

High Clouds (% Sky Obscured)

86
82
76
76
66
54
30
19
1
6
10
12
13
15
20
22
37
40

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

4
5
5
5
6
7
8
9
9
9
8
9
8
8
8
8
8
7

Feels Like (°C)

2
1
0
0
1
1
1
7
6
6
6
6
6
4
4
3
4
3

Dew Point (°C)

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

Relative Humidity (%)

93
93
89
89
86
84
81
81
80
80
79
80
81
82
84
84
85
87

Pressure (mb)

1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1017
1017
1017
1018
1018
1018
1018
1018

Ozone (du)

309
307
306
304
304
304
305
306
307
307
303
298
294
295
295
296
297
299

Forecast for Amersfoort, Gemeente Amersfoort, Netherlands (52.16,5.39)

Generated: 06/12/25 07:39:07. Forecast: 06/12/25 to 12/12/25. Timezone: UTC+1.00