Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 15

Waning Crescent 28%

00:42

16:28

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

Sun - Rise: 06:55, Set: 19:23, Transit: 13:08. Moon - Rise: 00:42, Set: 16:28. Civil Dark: 19:52 - 06:26. Nautical Dark: 20:27 - 05:51. Astro Dark: 21:03 - 05:16

Total Clouds (% Sky Obscured)

53
49
45
33
10
13
22
16
14
16
0
0
6
3
8
0
3
0
0
0
0
14
21
25

Low Clouds (% Sky Obscured)

20
15
15
12
10
13
22
16
14
14
0
0
3
2
5
0
2
0
0
0
0
7
9
11

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
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)

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)

10
9
8
6
4
4
3
3
1
2
2
3
3
3
3
3
3
3
4
4
5
6
6
6

Chance of Frost

Temperature (°C)

21
22
22
21
18
16
14
13
13
12
12
12
12
12
11
11
11
13
17
19
21
22
23
24

Feels Like (°C)

21
21
21
21
20
17
16
15
14
14
14
13
13
13
12
12
12
14
18
20
22
23
24
24

Dew Point (°C)

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

Relative Humidity (%)

43
42
43
49
65
73
79
84
86
87
89
89
89
87
88
87
85
75
61
51
45
41
38
35

Pressure (mb)

1022
1022
1022
1022
1023
1024
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1024
1024

Ozone (du)

286
287
288
289
289
290
291
292
293
292
292
292
291
291
293
293
292
292
290
290
289
288
288
286

Tuesday 16

Waning Crescent 18%

01:56

17:11

15 OK
16 OK
17 OK
18 OK
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 OK
09 OK
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:56, Set: 19:21, Transit: 13:08. Moon - Rise: 01:56, Set: 17:11. Civil Dark: 19:51 - 06:27. Nautical Dark: 20:25 - 05:53. Astro Dark: 21:01 - 05:17

Total Clouds (% Sky Obscured)

25
26
28
23
10
6
3
3
1
0
0
0
0
0
0
0
0
25
45
50
50
68
100
100

Low Clouds (% Sky Obscured)

14
14
13
18
6
2
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)

0
2
3
3
3
3
3
2
1
0
0
0
0
0
0
0
0
11
16
10
15
41
100
100

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
38
40
72
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)

5
4
4
3
1
2
1
2
1
1
1
1
1
1
1
2
2
2
3
4
4
5
6
8

Chance of Frost

Temperature (°C)

24
24
24
23
20
17
15
15
14
14
13
13
13
13
13
13
13
14
17
20
22
23
24
25

Feels Like (°C)

25
25
25
25
22
19
18
17
16
16
16
15
15
15
15
15
14
16
19
21
23
24
24
22

Dew Point (°C)

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

Relative Humidity (%)

36
37
40
49
67
79
83
87
89
92
92
95
93
93
93
95
93
86
71
57
48
42
38
36

Pressure (mb)

1024
1024
1023
1023
1024
1024
1025
1025
1025
1025
1024
1024
1024
1024
1023
1023
1023
1023
1023
1023
1022
1022
1021
1021

Ozone (du)

286
285
285
284
284
284
285
285
284
284
283
282
281
281
281
281
282
282
283
283
284
282
281
281

Wednesday 17

Waning Crescent 11%

03:11

17:44

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 Bad
14 Bad

Sun - Rise: 06:57, Set: 19:20, Transit: 13:08. Moon - Rise: 03:11, Set: 17:44. Civil Dark: 19:49 - 06:28. Nautical Dark: 20:23 - 05:54. Astro Dark: 20:59 - 05:19

Total Clouds (% Sky Obscured)

100
100
100
100
79
89
66
74
73
95
100
78
79
94
93
98
91
100
100
100
100
98
96
94

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
6
8
0
3
8
9
8
0
8
13
20
20
22
25
26
27
32

Medium Clouds (% Sky Obscured)

0
0
0
38
41
35
38
31
20
3
2
2
29
67
61
77
76
71
73
67
67
63
64
60

High Clouds (% Sky Obscured)

100
100
100
100
58
80
23
15
13
88
100
29
15
67
69
84
37
100
100
100
100
68
35
7

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
1
3
1
1
0
0
1
1
2
3
3
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

24
23
22
20
18
17
16
15
15
15
14
13
13
13
13
13
13
14
16
18
20
21
21
22

Feels Like (°C)

22
21
20
18
17
16
15
15
15
14
12
11
11
11
11
11
11
12
15
17
18
18
19
20

Dew Point (°C)

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

Relative Humidity (%)

39
45
48
58
69
78
86
92
92
90
84
83
81
80
79
86
93
87
78
69
61
60
59
55

Pressure (mb)

1020
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1019
1019
1019
1018
1018
1018
1018
1017
1017
1017
1016
1015

Ozone (du)

281
281
281
282
283
284
285
285
284
285
286
286
286
286
286
286
286
286
287
287
287
287
286
286

Thursday 18

Waning Crescent 5%

04:24

18:09

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

Sun - Rise: 06:59, Set: 19:18, Transit: 13:07. Moon - Rise: 04:24, Set: 18:09. Civil Dark: 19:47 - 06:30. Nautical Dark: 20:21 - 05:55. Astro Dark: 20:56 - 05:20

Total Clouds (% Sky Obscured)

92
98
98
86
85
55
82
14
19
28
23
56
22
24
28
56
59
71
92
76
72
96
96
84

Low Clouds (% Sky Obscured)

36
28
28
35
40
39
32
14
19
25
23
31
22
24
28
55
57
69
91
70
58
96
93
81

Medium Clouds (% Sky Obscured)

65
82
91
64
70
51
52
14
19
28
23
30
22
24
25
18
11
5
14
25
34
27
19
14

High Clouds (% Sky Obscured)

36
69
98
86
85
55
67
14
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

6
7
4
25
33
34
54
66
74
71
63
49
42
30
5
4
2
0
0
2
3
20
10
8

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

11
10
10
9
9
9
7
6
5
5
5
5
4
4
4
4
5
6
7
7
7
9
10
9

Chance of Frost

Temperature (°C)

22
22
21
20
19
18
17
17
17
16
16
16
16
16
16
16
16
17
18
20
21
22
21
20

Feels Like (°C)

20
20
19
18
18
17
18
17
18
18
17
17
17
17
17
17
17
18
18
19
21
22
19
18

Dew Point (°C)

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

Relative Humidity (%)

56
56
63
70
80
83
86
88
87
89
95
96
98
98
98
98
98
95
83
77
63
58
66
76

Pressure (mb)

1015
1014
1014
1013
1013
1013
1013
1013
1012
1012
1011
1011
1011
1010
1010
1009
1009
1009
1009
1009
1009
1009
1009
1009

Ozone (du)

287
288
288
287
287
285
284
285
285
284
285
287
289
290
291
291
290
290
290
290
291
292
292
293

Friday 19

Waning Crescent 1%

05:34

18:29

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

Sun - Rise: 07:00, Set: 19:16, Transit: 13:07. Moon - Rise: 05:34, Set: 18:29. Civil Dark: 19:45 - 06:31. Nautical Dark: 20:19 - 05:57. Astro Dark: 20:54 - 05:21

Total Clouds (% Sky Obscured)

67
41
55
26
26
63
94
83
71
82
65
32
11
7
2
1
1
1
9
18
25
34
43
51

Low Clouds (% Sky Obscured)

58
31
49
26
26
63
87
77
65
80
65
27
9
5
1
1
1
1
9
18
25
34
43
48

Medium Clouds (% Sky Obscured)

17
21
18
15
14
11
11
11
11
7
4
0
0
0
0
0
0
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)

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 (%)

9
13
11
12
13
9
8
6
3
8
10
10
1
1
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)

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

Chance of Frost

Temperature (°C)

19
19
19
19
16
15
14
14
13
12
12
12
11
10
9
8
9
10
10
11
13
14
14
14

Feels Like (°C)

17
18
18
17
16
15
13
12
11
10
9
9
8
8
8
7
7
6
6
8
8
8
9
9

Dew Point (°C)

14
12
10
9
9
9
8
7
6
6
5
4
3
2
3
3
3
2
2
1
-1
-2
-3
-3

Relative Humidity (%)

73
60
53
53
61
67
69
64
64
65
61
59
55
58
63
68
63
60
56
47
39
33
31
30

Pressure (mb)

1010
1010
1010
1010
1011
1012
1013
1013
1013
1014
1015
1015
1016
1015
1016
1017
1017
1018
1019
1019
1020
1020
1020
1020

Ozone (du)

292
291
291
291
293
297
300
303
307
308
311
315
317
316
316
316
315
314
313
312
312
311
310
309

Saturday 20

Waning Crescent 0%

06:41

18:47

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

Sun - Rise: 07:01, Set: 19:14, Transit: 13:06. Moon - Rise: 06:41, Set: 18:47. Civil Dark: 19:43 - 06:32. Nautical Dark: 20:17 - 05:58. Astro Dark: 20:52 - 05:23

Total Clouds (% Sky Obscured)

42
34
25
26
19
11
2
1
0
1
2
1
3
4
6
5
4
2
3
3
4
5
4
6

Low Clouds (% Sky Obscured)

40
32
23
22
18
11
2
1
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
1
1
1
2
2
2
1
1

High Clouds (% Sky Obscured)

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

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
1
0
1
1
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)

12
11
10
9
6
4
2
2
2
2
2
3
3
3
3
3
4
4
4
5
5
6
6
7

Chance of Frost

Temperature (°C)

15
14
14
14
12
10
8
8
7
7
6
6
6
5
5
5
7
9
11
13
15
17
18
19

Feels Like (°C)

9
11
10
10
11
12
12
6
7
7
7
7
6
5
5
5
5
4
4
11
12
12
13
13

Dew Point (°C)

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

Relative Humidity (%)

29
31
32
34
41
50
62
63
64
65
66
65
65
65
65
64
57
51
46
37
30
24
23
21

Pressure (mb)

1021
1021
1022
1022
1023
1024
1025
1025
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1028
1027
1027
1027
1026
1025

Ozone (du)

307
305
302
300
297
295
293
292
291
290
289
288
287
286
284
283
282
282
282
280
279
278
278
278

Sunday 21

New Moon 1%

07:47

19:04

15 Good
16 Good
17 OK
18 OK
19 OK
20 OK
21 OK
22 OK
23 OK
00 OK
01 OK
02 Good
03 OK
04 OK
05 Bad
06 OK
07 OK
08 Good

Sun - Rise: 07:02, Set: 19:12, Transit: 13:06. Moon - Rise: 07:47, Set: 19:04. Civil Dark: 19:41 - 06:33. Nautical Dark: 20:15 - 05:59. Astro Dark: 20:50 - 05:24

Total Clouds (% Sky Obscured)

8
14
25
41
48
45
38
40
30
24
19
12
28
43
56
43
26
10

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

8
14
25
41
48
45
38
40
30
24
18
3
20
32
49
32
17
4

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)

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

Chance of Frost

Temperature (°C)

20
19
18
16
15
13
12
11
10
9
9
9
8
8
8
8
10
12

Feels Like (°C)

14
19
17
17
16
16
16
8
9
9
9
9
8
7
7
7
7
7

Dew Point (°C)

-3
-0
3
6
6
6
6
6
6
5
5
5
5
5
5
6
6
6

Relative Humidity (%)

20
27
37
48
53
60
67
70
72
73
76
78
81
81
82
84
76
68

Pressure (mb)

1025
1025
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1023
1023
1023
1022

Ozone (du)

278
278
278
278
278
277
276
276
276
276
276
275
275
275
274
274
274
273

Forecast for Halifax, Halifax Regional Municipality, Canada (44.65,-63.57)

Generated: 15/09/25 15:24:19. Forecast: 15/09/25 to 21/09/25. Timezone: UTC-3.00