Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 22

Waxing Gibbous 76%

14:00

05:22

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

Sun - Rise: 06:00, Set: 20:41, Transit: 13:21. Moon - Rise: 14:00, Set: 05:22. Civil Dark: 21:21 - 05:20. Nautical Dark: 22:13 - 04:27. Astro Dark: 23:18 - 03:20

Total Clouds (% Sky Obscured)

91
95
91
92
94
77
87
63
31
11
0
0
0
0
0
0
0
0
22
62
82
95
95
94

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
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

91
95
91
92
94
77
87
63
31
11
0
0
0
0
0
0
0
0
22
62
82
95
95
94

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)

10
10
10
10
9
8
6
5
4
3
3
3
4
4
4
5
5
5
6
8
10
11
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
14
13
13
12
11
8
5
4
3
2
2
2
1
1
0
-0
1
3
6
11
12
13
13

Dew Point (°C)

5
4
3
2
1
1
0
0
0
-0
-0
1
1
1
1
2
2
2
4
6
7
7
6
5

Relative Humidity (%)

56
52
50
48
48
51
55
63
69
73
77
82
86
88
92
94
96
94
90
84
77
69
62
55

Pressure (mb)

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

Ozone (du)

321
323
325
327
330
334
334
333
334
335
335
338
337
338
337
336
333
330
330
328
324
322
320
324

Friday 23

Waxing Gibbous 85%

15:26

05:37

14 Bad
15 Bad
16 OK
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 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Good

Sun - Rise: 05:58, Set: 20:43, Transit: 13:21. Moon - Rise: 15:26, Set: 05:37. Civil Dark: 21:23 - 05:17. Nautical Dark: 22:16 - 04:24. Astro Dark: 23:23 - 03:16

Total Clouds (% Sky Obscured)

77
72
41
79
95
98
98
99
100
98
100
100
100
100
100
99
98
98
95
93
87
84
59
2

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
0
4
41
41
48
49
0

High Clouds (% Sky Obscured)

77
72
41
79
95
98
98
99
100
98
100
100
100
100
100
99
98
98
95
92
86
82
48
2

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
14
13
13
13
12
11
8
7
6
6
6
6
5
5
5
4
5
6
8
11
12
12
13

Dew Point (°C)

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

Relative Humidity (%)

51
48
47
48
51
55
60
65
69
73
76
81
87
91
94
96
96
93
87
79
72
67
63
59

Pressure (mb)

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

Ozone (du)

324
322
321
320
318
317
316
317
316
317
316
314
315
317
316
316
316
317
318
317
318
318
318
320

Saturday 24

Waxing Gibbous 93%

16:54

05:51

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 Bad
04 OK
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 05:56, Set: 20:45, Transit: 13:21. Moon - Rise: 16:54, Set: 05:51. Civil Dark: 21:25 - 05:15. Nautical Dark: 22:18 - 04:21. Astro Dark: 23:27 - 03:11

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
6
9
4
3
53
23
98
94
94
94
94
94
94
94
99

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
6
9
4
2
3
3
7
15
12
12
12
12
12
12
2

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
1
52
20
98
92
93
93
93
93
93
93
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
1
1
1
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

12
12
11
10
8
7
6
5
5
5
5
4
5
5
4
4
4
4
5
6
7
7
7
7

Chance of Frost

Temperature (°C)

14
15
15
15
15
13
12
10
9
8
7
7
6
6
5
5
4
4
6
8
10
11
12
13

Feels Like (°C)

14
15
15
15
15
13
12
10
8
7
6
5
5
4
4
3
3
3
5
7
8
11
12
13

Dew Point (°C)

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

Relative Humidity (%)

54
51
49
49
52
56
61
68
73
78
85
90
97
100
100
100
100
100
97
89
83
78
73
67

Pressure (mb)

1029
1030
1030
1030
1030
1029
1030
1030
1030
1030
1031
1031
1032
1032
1031
1031
1031
1032
1032
1032
1032
1032
1032
1031

Ozone (du)

321
323
324
322
319
318
322
329
334
336
336
334
335
337
340
342
343
349
350
352
353
352
353
355

Sunday 25

Waxing Gibbous 98%

18:25

06:05

14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
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

Sun - Rise: 05:53, Set: 20:47, Transit: 13:21. Moon - Rise: 18:25, Set: 06:05. Civil Dark: 21:27 - 05:12. Nautical Dark: 22:21 - 04:18. Astro Dark: 23:31 - 03:06

Total Clouds (% Sky Obscured)

99
99
99
99
99
0
0
0
0
0
0
82
82
82
82
82
82
99
99
99
99
99
99
91

Low Clouds (% Sky Obscured)

2
2
2
2
2
0
0
0
0
0
0
0
0
0
0
0
0
52
52
52
52
52
52
3

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

99
99
99
99
99
0
0
0
0
0
0
82
82
82
82
82
82
98
98
98
98
98
98
91

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
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
3
3
2
3
7
17
30

Precipitation Amount (mm)

0
0
0
0
0
0.01
0
0
0
0
0
0
0
0
0
0
0
0.02
0.02
0.01
0.01
0.05
0.16
0.33

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
15
16
16
15
14
12
10
8
7
6
6
5
5
5
5
5
6
7
9
11
12
13
12

Feels Like (°C)

14
15
16
16
15
14
12
10
8
7
6
6
5
4
4
4
3
4
6
8
11
12
13
12

Dew Point (°C)

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

Relative Humidity (%)

61
56
54
55
57
62
66
73
77
80
85
91
91
93
95
97
98
98
92
85
79
76
77
84

Pressure (mb)

1031
1031
1030
1030
1030
1029
1028
1028
1028
1028
1027
1027
1026
1025
1025
1024
1024
1022
1021
1021
1021
1020
1019
1019

Ozone (du)

355
356
356
356
355
356
355
354
354
352
348
347
347
346
345
343
343
361
366
368
373
379
383
372

Monday 26

Waxing Gibbous 100%

19:59

06:20

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

Sun - Rise: 05:51, Set: 20:48, Transit: 13:21. Moon - Rise: 19:59, Set: 06:20. Civil Dark: 21:30 - 05:10. Nautical Dark: 22:24 - 04:15. Astro Dark: 23:35 - 03:02

Total Clouds (% Sky Obscured)

91
91
91
91
91
97
97
97
97
97
97
27
27
27
27
27
27
38
38
38
38
38
38
75

Low Clouds (% Sky Obscured)

3
3
3
3
3
5
5
5
5
5
5
27
27
27
27
27
27
23
23
23
23
23
23
75

Medium Clouds (% Sky Obscured)

0
0
0
0
0
97
97
97
97
97
97
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

91
91
91
91
91
0
0
0
0
0
0
0
0
0
0
0
0
20
20
20
20
20
20
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

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

Precipitation Probability (%)

49
60
60
58
47
20
7
2
0
0
1
2
2
3
2
3
4
5
6
6
7
6
4
0

Precipitation Amount (mm)

0.76
1.4
1.77
1.39
0.75
0.34
0.12
0.03
0
0
0.01
0.01
0.01
0.01
0.01
0.01
0.02
0.02
0.02
0.02
0.02
0.01
0.01
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
99
96
97
97
93
94
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
92
87

Pressure (mb)

1019
1018
1018
1017
1017
1018
1018
1018
1019
1019
1019
1020
1020
1020
1020
1020
1021
1021
1021
1021
1021
1022
1022
1022

Ozone (du)

375
385
398
410
415
408
404
403
401
399
394
399
401
400
398
397
394
392
389
386
383
381
380
380

Tuesday 27

Full Moon 99%

21:35

06:40

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

Sun - Rise: 05:49, Set: 20:50, Transit: 13:21. Moon - Rise: 21:35, Set: 06:40. Civil Dark: 21:32 - 05:07. Nautical Dark: 22:27 - 04:12. Astro Dark: 23:40 - 02:56

Total Clouds (% Sky Obscured)

75
75
75
75
75
59
59
59
59
59
59
98
98
98
98
98
98
100
100
100
100
100
100
39

Low Clouds (% Sky Obscured)

75
75
75
75
75
59
59
59
59
59
59
95
95
95
95
95
95
99
99
99
99
99
99
22

Medium Clouds (% Sky Obscured)

0
0
0
0
0
13
13
13
13
13
13
35
35
35
35
35
35
88
88
88
88
88
88
1

High Clouds (% Sky Obscured)

0
0
0
0
0
1
1
1
1
1
1
56
56
56
56
56
56
68
68
68
68
68
68
23

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

Precipitation Amount (mm)

0
0.01
0.01
0.02
0.02
0.02
0.01
0
0
0
0
0
0
0
0
0
0.01
0.02
0.02
0.02
0.02
0.02
0.03
0.03

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

10
11
12
12
11
10
9
8
8
7
6
6
5
5
5
4
5
5
5
6
7
8
8
8

Feels Like (°C)

8
11
12
12
11
10
7
6
5
5
4
3
2
2
2
2
2
2
2
3
4
5
5
5

Dew Point (°C)

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

Relative Humidity (%)

79
73
69
72
75
80
83
85
87
88
90
94
98
100
100
100
100
100
100
95
89
86
84
83

Pressure (mb)

1021
1021
1021
1020
1020
1020
1020
1021
1020
1020
1021
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

382
385
386
384
380
377
378
380
382
382
382
382
380
378
376
374
373
371
370
368
367
367
367
367

Wednesday 28

Waning Gibbous 94%

23:11

07:06

14 OK
15 OK
16 OK
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

Sun - Rise: 05:47, Set: 20:52, Transit: 13:20. Moon - Rise: 23:11, Set: 07:06. Civil Dark: 21:34 - 05:05. Nautical Dark: 22:29 - 04:09. Astro Dark: 23:45 - 02:51

Total Clouds (% Sky Obscured)

39
39
39
39
39
10
10
10
10
10
10
67
67
67
67
67
67
98
98
98
98
98
98
99

Low Clouds (% Sky Obscured)

22
22
22
22
22
3
3
3
3
3
3
2
2
2
2
2
2
31
31
31
31
31
31
54

Medium Clouds (% Sky Obscured)

1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
2
2
2
2
2
2
20

High Clouds (% Sky Obscured)

23
23
23
23
23
8
8
8
8
8
8
66
66
66
66
66
66
97
97
97
97
97
97
97

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 (%)

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

Precipitation Amount (mm)

0.03
0.02
0.02
0.01
0.01
0.01
0
0
0
0
0
0
0
0
0
0
0.01
0.01
0.01
0
0
0
0
0.01

Wind Speed/Direction (mph)

11
11
10
10
10
9
8
6
5
5
6
6
6
6
5
5
4
4
5
5
6
6
6
6

Chance of Frost

Temperature (°C)

9
10
11
11
11
10
9
8
7
7
7
7
6
6
5
5
4
5
6
7
9
10
11
12

Feels Like (°C)

6
10
11
11
11
10
7
6
5
5
5
5
4
4
3
3
3
3
4
6
7
9
11
12

Dew Point (°C)

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

Relative Humidity (%)

78
73
71
71
73
75
78
83
87
89
92
96
99
100
100
100
100
100
100
94
88
81
72
65

Pressure (mb)

1019
1019
1019
1019
1019
1019
1019
1019
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1021
1020
1021
1021
1021
1021

Ozone (du)

368
369
370
369
369
369
369
370
370
370
368
368
368
368
368
368
367
367
366
365
365
366
367
367

Forecast for Belfast, Belfast, UK (54.60,-5.93)

Generated: 22/04/21 14:45:38. Forecast: 22/04/21 to 28/04/21. Timezone: UTC+1.00