Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 22

Waxing Gibbous 76%

No Rise

05:30

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

Sun - Rise: 06:23, Set: 20:50, Transit: 13:37. Moon - Rise: No Rise, Set: 05:30. Civil Dark: 21:27 - 05:46. Nautical Dark: 22:14 - 04:58. Astro Dark: 23:10 - 04:01

Total Clouds (% Sky Obscured)

78
64
49
27
28
31
20
1
3
8
16
14
15
5
2
13
51
64
65
94
96
98
86
73

Low Clouds (% Sky Obscured)

77
63
38
27
28
23
5
1
3
8
9
11
6
2
1
12
49
64
65
94
96
98
84
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
3
16
0
0
11
15
0
0
0
8
3
9
2
2
3
3
0
0
0
0
8
12
11

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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
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)

0.01
0.01
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
11
11
11
10
10
8
7
6
5
4
4
4
4
4
4
4
4
5
6
7
7
7
7

Chance of Frost

Temperature (°C)

12
12
12
12
11
10
8
6
5
4
3
2
2
1
0
0
0
2
5
8
10
11
12
13

Feels Like (°C)

12
12
12
12
11
8
5
4
2
2
1
1
-0
-1
-1
-2
-2
0
3
6
8
11
12
13

Dew Point (°C)

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

Relative Humidity (%)

49
47
47
48
51
55
64
73
80
88
94
99
100
100
100
100
100
100
87
75
66
58
52
46

Pressure (mb)

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

Ozone (du)

369
366
365
369
369
359
358
361
361
361
360
361
362
360
353
349
344
342
343
344
345
342
343
344

Friday 23

Waxing Gibbous 85%

15:45

05:49

15 Bad
16 Bad
17 OK
18 OK
19 Good
20 Good
21 Good
22 Good
23 Good
00 Good
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

Sun - Rise: 06:21, Set: 20:51, Transit: 13:37. Moon - Rise: 15:45, Set: 05:49. Civil Dark: 21:29 - 05:44. Nautical Dark: 22:16 - 04:56. Astro Dark: 23:13 - 03:58

Total Clouds (% Sky Obscured)

73
69
46
34
1
2
2
13
3
2
42
91
81
84
92
100
100
100
100
100
100
100
99
100

Low Clouds (% Sky Obscured)

53
47
38
16
1
1
2
2
3
2
0
0
0
1
3
24
73
68
80
89
92
99
91
61

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
2
5
7
15
19
20
23
29
19
8
15

High Clouds (% Sky Obscured)

42
40
16
22
0
2
0
11
0
0
42
91
81
84
91
100
100
100
100
100
100
99
95
99

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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
1

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
0.01

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
15
14
13
12
11
9
7
6
5
4
4
3
2
2
2
2
3
5
8
9
11
11
12

Feels Like (°C)

14
15
14
13
12
11
6
4
3
2
1
1
0
-1
-1
-1
-1
1
3
5
7
11
11
12

Dew Point (°C)

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

Relative Humidity (%)

43
40
41
43
48
54
63
72
78
84
88
93
97
100
100
100
100
97
86
76
69
64
60
58

Pressure (mb)

1029
1028
1028
1028
1028
1028
1028
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1028

Ozone (du)

341
339
341
342
342
347
347
346
346
346
345
338
336
333
329
327
327
327
324
322
321
321
323
318

Saturday 24

Waxing Gibbous 93%

17:10

06:06

15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Good
23 Good
00 Good
01 Good
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

Sun - Rise: 06:19, Set: 20:53, Transit: 13:37. Moon - Rise: 17:10, Set: 06:06. Civil Dark: 21:30 - 05:41. Nautical Dark: 22:19 - 04:53. Astro Dark: 23:16 - 03:54

Total Clouds (% Sky Obscured)

100
100
100
100
100
91
52
9
1
1
14
64
86
84
87
100
95
91
91
91
91
91
91
100

Low Clouds (% Sky Obscured)

59
63
64
63
66
62
41
9
1
1
14
64
86
84
87
100
95
91
91
91
91
91
91
100

Medium Clouds (% Sky Obscured)

6
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)

99
100
100
100
100
79
20
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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)

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

Chance of Frost

Temperature (°C)

13
13
14
13
12
11
9
8
6
5
4
3
3
2
2
1
1
3
5
7
9
11
12
13

Feels Like (°C)

13
13
14
13
12
11
7
5
3
2
1
0
-0
-1
-2
-2
-2
-0
2
4
7
11
12
13

Dew Point (°C)

3
3
3
3
3
3
2
1
1
2
2
2
2
2
2
1
1
1
2
2
2
1
1
1

Relative Humidity (%)

53
50
49
50
54
57
60
65
70
77
83
89
93
97
100
100
100
92
81
70
59
52
48
43

Pressure (mb)

1028
1027
1027
1027
1027
1027
1027
1027
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1027
1027

Ozone (du)

317
317
318
319
321
319
319
319
320
323
326
327
326
326
329
336
341
356
359
361
362
362
362
360

Sunday 25

Waxing Gibbous 98%

18:37

06:23

15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
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 Bad

Sun - Rise: 06:17, Set: 20:55, Transit: 13:37. Moon - Rise: 18:37, Set: 06:23. Civil Dark: 21:32 - 05:39. Nautical Dark: 22:21 - 04:50. Astro Dark: 23:19 - 03:51

Total Clouds (% Sky Obscured)

100
100
100
100
100
94
94
94
94
94
94
27
27
27
27
27
27
26
26
26
26
26
26
85

Low Clouds (% Sky Obscured)

100
100
100
100
100
9
9
9
9
9
9
27
27
27
27
27
27
26
26
26
26
26
26
85

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
2

High Clouds (% Sky Obscured)

0
0
0
0
0
93
93
93
93
93
93
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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
0
0
0
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.01
0
0
0
0.01
0.01
0.01
0.01
0.01
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
14
14
13
12
10
9
7
5
4
3
3
2
1
1
1
1
3
5
8
10
12
13
14

Feels Like (°C)

14
14
14
13
12
10
6
4
2
1
0
-0
-1
-2
-2
-3
-2
-0
2
5
8
12
13
14

Dew Point (°C)

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

Relative Humidity (%)

41
41
44
49
56
60
66
73
80
87
94
98
100
100
100
100
100
98
87
75
64
55
49
43

Pressure (mb)

1027
1026
1026
1026
1026
1025
1025
1025
1025
1025
1025
1024
1024
1023
1023
1023
1022
1021
1021
1021
1020
1019
1018
1018

Ozone (du)

362
364
366
366
365
360
363
369
371
371
370
370
370
368
368
370
372
376
375
374
373
372
370
367

Monday 26

Waxing Gibbous 100%

20:07

06:42

15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 OK
21 OK
22 OK
23 OK
00 OK
01 OK
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

Sun - Rise: 06:15, Set: 20:56, Transit: 13:37. Moon - Rise: 20:07, Set: 06:42. Civil Dark: 21:34 - 05:37. Nautical Dark: 22:23 - 04:48. Astro Dark: 23:23 - 03:47

Total Clouds (% Sky Obscured)

85
85
85
85
85
28
28
28
28
28
28
87
87
87
87
87
87
98
98
98
98
98
98
95

Low Clouds (% Sky Obscured)

85
85
85
85
85
28
28
28
28
28
28
7
7
7
7
7
7
1
1
1
1
1
1
77

Medium Clouds (% Sky Obscured)

2
2
2
2
2
0
0
0
0
0
0
2
2
2
2
2
2
98
98
98
98
98
98
25

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
86
86
86
86
86
86
71
71
71
71
71
71
84

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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
1
1
1
1
1
0
0
0
0
0
1
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.01
0.01
0.01
0.01
0.01
0
0
0
0
0
0.01
0
0
0

Wind Speed/Direction (mph)

9
10
10
11
10
10
10
10
10
10
9
10
10
10
10
10
10
10
11
12
13
13
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
15
15
15
13
12
11
10
7
5
4
4
3
2
2
2
2
2
4
7
11
13
14
15

Dew Point (°C)

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

Relative Humidity (%)

40
39
41
45
50
55
59
63
68
74
81
81
86
90
92
92
90
86
80
69
61
54
49
44

Pressure (mb)

1017
1016
1015
1015
1014
1015
1015
1015
1015
1014
1014
1014
1014
1013
1013
1013
1012
1012
1012
1012
1011
1011
1010
1010

Ozone (du)

367
367
367
369
371
370
373
376
382
389
400
409
415
419
421
423
424
425
427
428
429
430
430
429

Tuesday 27

Full Moon 99%

21:39

07:05

15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 OK
21 OK
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 Bad

Sun - Rise: 06:13, Set: 20:58, Transit: 13:36. Moon - Rise: 21:39, Set: 07:05. Civil Dark: 21:36 - 05:35. Nautical Dark: 22:25 - 04:45. Astro Dark: 23:26 - 03:44

Total Clouds (% Sky Obscured)

95
95
95
95
95
31
31
31
31
31
31
26
26
26
26
26
26
30
30
30
30
30
30
98

Low Clouds (% Sky Obscured)

77
77
77
77
77
18
18
18
18
18
18
12
12
12
12
12
12
11
11
11
11
11
11
83

Medium Clouds (% Sky Obscured)

25
25
25
25
25
20
20
20
20
20
20
21
21
21
21
21
21
26
26
26
26
26
26
98

High Clouds (% Sky Obscured)

84
84
84
84
84
7
7
7
7
7
7
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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
2
2
2
2
2
2

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.01
0.01
0.01
0.01
0.02
0.02

Wind Speed/Direction (mph)

15
15
14
14
13
13
13
12
12
12
12
12
12
12
11
11
11
11
12
13
14
14
14
14

Chance of Frost

Temperature (°C)

16
16
16
16
15
14
12
11
10
9
8
7
7
7
6
6
6
7
8
10
11
12
12
13

Feels Like (°C)

16
16
16
16
15
14
12
11
7
6
5
4
4
3
3
3
3
4
5
7
11
12
12
13

Dew Point (°C)

2
2
3
3
4
4
4
4
4
4
5
5
6
6
6
6
6
6
6
6
6
5
5
5

Relative Humidity (%)

41
39
40
44
48
52
57
64
70
75
80
86
93
100
100
100
100
96
88
79
71
66
63
58

Pressure (mb)

1009
1009
1009
1009
1009
1009
1009
1009
1009
1010
1010
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1008
1008
1008

Ozone (du)

426
421
418
416
416
416
416
415
415
413
410
408
405
403
401
400
399
399
400
402
403
403
401
401

Wednesday 28

Waning Gibbous 95%

23:11

07:34

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
08 OK
09 OK
10 OK
11 OK
12 OK
13 OK
14 Bad

Sun - Rise: 06:11, Set: 21:00, Transit: 13:36. Moon - Rise: 23:11, Set: 07:34. Civil Dark: 21:38 - 05:33. Nautical Dark: 22:28 - 04:42. Astro Dark: 23:29 - 03:40

Total Clouds (% Sky Obscured)

98
98
98
98
98
68
68
68
68
68
68
81
81
81
81
81
81
27
27
27
27
27
27
100

Low Clouds (% Sky Obscured)

83
83
83
83
83
68
68
68
68
68
68
81
81
81
81
81
81
27
27
27
27
27
27
100

Medium Clouds (% Sky Obscured)

98
98
98
98
98
0
0
0
0
0
0
6
6
6
6
6
6
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)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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

Precipitation Probability (%)

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

Precipitation Amount (mm)

0.02
0.03
0.03
0.02
0.02
0.01
0.01
0
0
0
0
0
0
0.01
0.01
0.02
0.04
0.06
0.03
0.02
0.02
0.04
0.1
0.16

Wind Speed/Direction (mph)

15
15
16
16
16
15
14
13
12
12
12
12
12
12
12
12
13
14
15
17
18
18
18
17

Chance of Frost

Temperature (°C)

14
14
14
13
12
11
11
10
9
9
8
8
7
7
6
6
6
7
8
8
9
10
10
11

Feels Like (°C)

14
14
14
13
12
11
11
10
7
6
5
4
4
3
3
2
3
3
4
5
5
6
10
11

Dew Point (°C)

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

Relative Humidity (%)

55
53
55
62
74
81
82
81
83
86
90
95
100
100
100
100
100
100
98
90
83
78
76
72

Pressure (mb)

1008
1007
1007
1008
1008
1008
1009
1009
1009
1009
1009
1009
1010
1009
1009
1009
1009
1009
1009
1010
1010
1010
1010
1010

Ozone (du)

401
401
404
410
419
423
418
409
402
400
401
401
401
402
402
401
401
401
401
402
402
401
400
399

Forecast for Utrecht, Utrecht, NL (52.09,5.12)

Generated: 22/04/21 15:13:04. Forecast: 22/04/21 to 28/04/21. Timezone: UTC+2.00