Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 20

Waxing Crescent 3%

06:17

21:17

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

Sun - Rise: 06:20, Set: 18:35, Transit: 12:27. Moon - Rise: 06:17, Set: 21:17. Civil Dark: 19:17 - 05:34. Nautical Dark: 20:08 - 04:43. Astro Dark: 21:03 - 03:47

Total Clouds (% Sky Obscured)

1
1
4
7
9
24
29
16
2
83
98
85
7
11
3
6
6
11
9
8
8
13
10
10

Low Clouds (% Sky Obscured)

1
1
2
2
0
0
0
0
0
11
0
0
0
0
0
0
0
0
0
0
0
2
1
1

Medium Clouds (% Sky Obscured)

0
0
0
7
0
21
18
3
0
0
0
0
2
0
2
0
0
2
2
2
2
2
2
2

High Clouds (% Sky Obscured)

0
1
4
2
9
3
8
13
2
78
98
79
6
10
2
5
5
6
2
2
2
3
3
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 (%)

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)

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

Chance of Frost

Temperature (°C)

-2
-2
-0
2
4
5
7
7
8
8
8
7
5
4
3
2
2
2
1
1
1
1
1
1

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
89
83
72
64
57
52
48
45
44
48
57
66
73
76
80
86
86
88
88
88
84
83
83

Pressure (mb)

1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

424
419
418
416
414
408
400
397
392
387
384
380
381
381
379
377
377
376
374
372
371
371
372
371

Saturday 21

Waxing Crescent 8%

06:17

23:07

06 Good
07 OK
08 Good
09 Good
10 Good
11 OK
12 Good
13 Good
14 Good
15 Good
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

Sun - Rise: 06:17, Set: 18:37, Transit: 12:27. Moon - Rise: 06:17, Set: 23:07. Civil Dark: 19:20 - 05:31. Nautical Dark: 20:11 - 04:40. Astro Dark: 21:07 - 03:43

Total Clouds (% Sky Obscured)

8
21
11
13
14
14
8
6
6
8
20
67
62
84
74
81
55
81
100
100
54
90
87
63

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
5
2
0
0
0
0
15
18
36
44
51
57

Medium Clouds (% Sky Obscured)

2
20
2
13
14
2
2
0
0
0
17
62
59
77
74
81
55
79
54
16
23
61
51
0

High Clouds (% Sky Obscured)

4
5
8
7
7
7
4
4
3
6
4
10
7
57
32
16
25
46
100
100
28
40
45
32

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

Chance of Frost

Temperature (°C)

0
1
2
4
5
7
8
8
9
8
7
6
5
4
3
3
2
2
2
2
1
1
1
1

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
81
74
67
62
56
52
50
51
52
53
56
60
63
68
73
74
74
77
78
81
84
86
89

Pressure (mb)

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

Ozone (du)

370
371
373
375
377
375
374
372
371
369
368
369
372
371
370
367
366
367
377
392
400
403
399
394

Sunday 22

Waxing Crescent 16%

06:17

01:03

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

Sun - Rise: 06:14, Set: 18:40, Transit: 12:27. Moon - Rise: 06:17, Set: 01:03. Civil Dark: 19:22 - 05:28. Nautical Dark: 20:13 - 04:36. Astro Dark: 21:10 - 03:39

Total Clouds (% Sky Obscured)

66
68
67
92
100
77
70
90
90
25
17
26
12
0
0
0
0
0
0
38
50
63
75
75

Low Clouds (% Sky Obscured)

59
58
57
32
27
74
68
84
78
9
0
0
0
0
0
0
0
0
0
38
50
63
75
75

Medium Clouds (% Sky Obscured)

0
0
2
2
16
4
2
2
31
25
17
26
12
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

22
23
28
86
100
25
25
34
42
25
17
26
12
0
0
0
0
0
0
11
15
2
0
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
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)

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

Chance of Frost

Temperature (°C)

0
1
1
3
4
6
7
8
8
8
7
6
5
4
3
3
3
2
2
2
1
1
1
1

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
91
88
85
80
76
75
70
68
67
68
70
72
73
68
64
63
66
71
76
77
77
78
80

Pressure (mb)

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

Ozone (du)

382
377
377
374
372
368
366
365
364
364
363
363
363
363
363
365
366
368
370
372
374
374
375
374

Monday 23

Waxing Crescent 26%

06:20

03:00

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

Sun - Rise: 06:10, Set: 18:42, Transit: 12:26. Moon - Rise: 06:20, Set: 03:00. Civil Dark: 19:25 - 05:25. Nautical Dark: 20:16 - 04:33. Astro Dark: 21:14 - 03:35

Total Clouds (% Sky Obscured)

74
73
55
36
18
13
9
4
25
45
64
46
26
5
8
5
13
34
53
76
84
92
99
96

Low Clouds (% Sky Obscured)

74
73
55
36
18
13
9
4
3
1
0
0
0
0
3
5
8
23
39
54
67
79
92
84

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
21
40
60
46
26
5
8
5
13
34
50
37
61
70
90
85

High Clouds (% Sky Obscured)

2
0
0
0
0
0
0
0
0
1
1
0
7
5
1
3
1
0
1
3
4
4
3
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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
12
16
26

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

Chance of Frost

Temperature (°C)

1
1
2
3
5
6
7
7
8
8
7
6
5
4
3
2
2
1
1
1
1
1
1
0

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
83
80
73
68
64
59
56
56
56
56
60
66
72
77
82
84
88
88
91
92
92
94
96

Pressure (mb)

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

Ozone (du)

375
379
387
394
403
405
404
407
416
422
425
428
430
433
436
435
430
425
424
425
428
428
422
418

Tuesday 24

Waxing Crescent 37%

06:31

04:33

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

Sun - Rise: 06:07, Set: 18:45, Transit: 12:26. Moon - Rise: 06:31, Set: 04:33. Civil Dark: 19:27 - 05:22. Nautical Dark: 20:19 - 04:30. Astro Dark: 21:17 - 03:31

Total Clouds (% Sky Obscured)

92
93
77
71
37
34
30
24
21
18
15
30
42
44
0
0
0
0
0
1
3
5
8
18

Low Clouds (% Sky Obscured)

75
67
61
54
37
34
29
23
20
18
15
10
5
0
0
0
0
0
0
0
0
1
1
2

Medium Clouds (% Sky Obscured)

62
59
53
62
5
3
0
0
0
0
0
15
31
44
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

2
15
1
0
0
0
0
0
0
0
1
20
40
44
0
0
0
0
0
0
1
1
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
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

30
32
26
18
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0.1
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)

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

Chance of Frost

Temperature (°C)

0
0
1
3
4
5
6
7
8
7
7
7
5
3
2
2
1
1
0
-0
-1
-1
-1
-1

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
98
91
82
72
59
50
44
41
39
38
42
51
56
60
64
67
70
73
74
77
75
75
74

Pressure (mb)

1009
1010
1010
1010
1010
1011
1011
1011
1011
1010
1010
1010
1010
1010
1010
1010
1010
1011
1010
1010
1010
1009
1009
1009

Ozone (du)

410
408
416
421
425
430
438
440
432
427
429
432
428
426
424
422
419
416
414
412
410
409
408
407

Wednesday 25

First Quarter 49%

07:09

05:15

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

Sun - Rise: 06:04, Set: 18:47, Transit: 12:26. Moon - Rise: 07:09, Set: 05:15. Civil Dark: 19:30 - 05:19. Nautical Dark: 20:22 - 04:26. Astro Dark: 21:21 - 03:27

Total Clouds (% Sky Obscured)

29
32
41
37
34
22
20
21
31
32
30
25
16
16
27
44
65
77
88
100
100
100
98
99

Low Clouds (% Sky Obscured)

2
2
27
37
34
22
20
21
26
21
16
25
16
16
27
44
65
77
82
85
86
83
80
70

Medium Clouds (% Sky Obscured)

0
0
0
0
0
1
3
4
14
25
30
25
16
16
27
38
14
4
5
5
28
53
73
80

High Clouds (% Sky Obscured)

5
7
4
1
0
0
1
1
3
5
6
4
2
0
17
37
55
41
25
12
23
36
48
64

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
1
1
0
4
6
7
6
4
0
2
9
1
3
4
5
11
16
20
18
16
11
9

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
71
70
69
68
67
62
58
54
54
55
54
61
68
77
77
79
79
80
83
85
86
88
89

Pressure (mb)

1008
1008
1008
1007
1007
1006
1006
1005
1005
1004
1004
1003
1003
1003
1003
1003
1002
1002
1002
1002
1001
1001
1001
1001

Ozone (du)

407
407
407
408
409
410
412
414
416
418
420
422
423
424
425
426
427
428
428
428
427
430
432
434

Thursday 26

Waxing Gibbous 61%

08:39

05:26

06 Bad
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

Sun - Rise: 05:58, Set: 18:50, Transit: 12:25. Moon - Rise: 08:39, Set: 05:26. Civil Dark: 19:32 - 05:15. Nautical Dark: 20:25 - 04:22. Astro Dark: 21:24 - 03:22

Total Clouds (% Sky Obscured)

99
100
100
99
99
100
100
100
100
100
100
97
93
89
92
96
100
100
100
100

Low Clouds (% Sky Obscured)

64
60
60
60
63
67
70
68
66
62
60
64
68
67
71
73
76
73
69
67

Medium Clouds (% Sky Obscured)

88
97
97
97
96
97
98
100
100
100
100
97
93
89
92
91
90
92
94
96

High Clouds (% Sky Obscured)

79
96
89
83
72
81
91
100
100
100
100
67
33
0
9
18
27
51
76
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
7
4
1
1
0
0
3
6
9
9
9
9
8
6

Fog (%)

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

Precipitation Probability (%)

8
12
16
18
16
29
35
39
38
37
35
29
23
15
20
24
28
23
17
5

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
83
82
74
68
62
68
75
82
88
91
94
93
91
89
91
93
96
94
94

Pressure (mb)

1001
1001
1001
1002
1002
1002
1002
1002
1002
1003
1003
1003
1004
1004
1005
1005
1006
1006
1007
1007

Ozone (du)

436
438
440
439
438
437
440
443
446
448
451
453
455
457
459
459
460
460
462
463

Forecast for Koutti, Helsinki, Finland (60.47,24.89)

Generated: 20/03/26 06:16:26. Forecast: 20/03/26 to 26/03/26. Timezone: UTC+2.00