Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 25

Waxing Gibbous 96%

19:03

No Set

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

Sun - Rise: 06:29, Set: 20:02, Transit: 13:16. Moon - Rise: 19:03, Set: No Set. Civil Dark: 20:33 - 05:59. Nautical Dark: 21:10 - 05:21. Astro Dark: 21:50 - 04:42

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
72
18
26
13
8
0
0
0
6
35
16
0
2
9
14
26

Low Clouds (% Sky Obscured)

37
36
33
27
24
30
21
19
13
13
18
11
7
0
0
0
6
34
16
0
0
0
9
22

Medium Clouds (% Sky Obscured)

65
65
65
65
65
10
15
15
15
0
9
0
0
0
0
0
0
2
0
0
2
9
8
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
96
31
2
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 (%)

100
100
99
97
91
27
0
0
0
0
0
1
1
0
0
0
0
0
2
4
1
6
21
70

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
9
2
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)

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

Chance of Frost

Temperature (°C)

19
18
18
18
19
20
21
22
24
26
27
27
27
25
24
23
20
19
18
18
18
17
17
16

Feels Like (°C)

21
20
20
20
21
22
22
23
24
26
28
28
27
26
25
25
23
21
19
21
20
19
19
18

Dew Point (°C)

19
18
18
17
17
18
17
15
13
12
11
12
11
12
15
17
17
16
16
17
17
17
16
16

Relative Humidity (%)

98
95
96
93
91
86
75
62
49
42
38
38
38
44
55
66
80
85
88
93
96
96
96
96

Pressure (mb)

1015
1015
1015
1015
1015
1015
1015
1014
1013
1013
1012
1012
1012
1012
1012
1012
1012
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

300
299
299
300
300
302
302
303
305
304
303
305
306
309
313
319
316
311
311
315
319
322
323
325

Wednesday 26

Waxing Gibbous 99%

19:27

04:33

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

Sun - Rise: 06:30, Set: 20:01, Transit: 13:15. Moon - Rise: 19:27, Set: 04:33. Civil Dark: 20:31 - 06:00. Nautical Dark: 21:08 - 05:23. Astro Dark: 21:47 - 04:43

Total Clouds (% Sky Obscured)

33
30
35
33
37
31
28
39
35
39
56
89
86
87
64
30
20
2
0
33
42
38
33
28

Low Clouds (% Sky Obscured)

25
23
18
15
20
14
11
14
10
20
46
86
83
87
53
20
15
2
0
21
32
30
21
19

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
32
0
14
13
11
26
21
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 (%)

84
41
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
100
99
99

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
12
15
13
18
17
10
17
25
17
0
0
0
2
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
4
5
7
8
8
8
9
9
9
8
7
5
3
2
3
4
3
3
3
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

18
18
17
18
19
20
22
22
24
24
24
24
23
22
22
23
23
21
20
20
19
18
18
17

Dew Point (°C)

15
15
15
15
15
15
14
14
13
13
13
13
14
15
17
17
17
16
16
16
15
15
14
14

Relative Humidity (%)

96
95
93
93
83
75
66
59
53
50
47
50
56
60
72
77
86
86
89
93
92
93
92
92

Pressure (mb)

1013
1013
1014
1014
1015
1015
1015
1015
1015
1014
1014
1014
1015
1015
1016
1016
1016
1017
1018
1018
1018
1018
1018
1018

Ozone (du)

327
329
327
325
324
323
324
327
328
327
323
321
319
319
320
320
317
312
310
310
309
310
311
312

Thursday 27

Waxing Gibbous 100%

19:48

05:43

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

Sun - Rise: 06:31, Set: 19:59, Transit: 13:15. Moon - Rise: 19:48, Set: 05:43. Civil Dark: 20:29 - 06:01. Nautical Dark: 21:06 - 05:24. Astro Dark: 21:45 - 04:45

Total Clouds (% Sky Obscured)

28
23
24
34
37
24
6
76
75
83
59
51
40
4
14
22
60
50
36
53
80
87
95
84

Low Clouds (% Sky Obscured)

18
15
11
11
0
0
0
14
18
26
15
10
5
0
5
9
15
20
21
26
28
31
25
26

Medium Clouds (% Sky Obscured)

0
0
0
4
0
0
0
0
0
26
0
12
40
2
3
0
0
0
0
0
5
11
14
25

High Clouds (% Sky Obscured)

0
0
2
15
37
24
4
72
70
60
59
51
40
3
4
8
32
22
9
17
46
63
78
78

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 (%)

100
99
95
98
80
22
6
2
2
1
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)

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

Chance of Frost

Temperature (°C)

15
15
14
14
17
20
21
23
24
24
25
25
24
23
23
21
18
17
17
16
16
16
16
16

Feels Like (°C)

17
18
17
17
20
22
23
25
24
24
24
24
23
22
23
22
20
17
18
18
17
16
16
16

Dew Point (°C)

14
14
13
13
13
13
13
13
12
12
12
12
12
13
14
15
16
16
16
16
16
15
16
15

Relative Humidity (%)

92
93
92
89
78
67
59
53
49
47
45
45
47
52
57
70
86
95
95
95
96
95
96
96

Pressure (mb)

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

Ozone (du)

312
311
310
309
310
311
310
309
308
309
309
308
308
308
308
308
309
308
307
306
305
305
304
304

Friday 28

Full Moon 99%

20:07

06:52

04 Bad
05 Bad
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
02 Bad
03 Bad

Sun - Rise: 06:33, Set: 19:57, Transit: 13:15. Moon - Rise: 20:07, Set: 06:52. Civil Dark: 20:27 - 06:02. Nautical Dark: 21:04 - 05:26. Astro Dark: 21:43 - 04:47

Total Clouds (% Sky Obscured)

98
100
100
100
99
100
99
99
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

27
25
20
18
18
24
28
30
29
38
91
95
94
79
92
97
99
100
100
100
98
97
97
93

Medium Clouds (% Sky Obscured)

37
43
34
28
23
29
32
67
87
94
94
96
98
100
93
86
42
18
15
13
17
22
30
31

High Clouds (% Sky Obscured)

92
100
100
100
99
89
83
78
86
93
100
59
96
88
88
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
0
0
0
0
0

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

Precipitation Probability (%)

0
0
0
0
0
2
3
2
9
12
13
55
66
76
95
95
95
54
35
19
23
20
6
7

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.3
0.9
1.4
2
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

3
3
3
3
4
5
7
8
10
9
9
9
8
7
6
7
6
7
6
6
3
4
4
5

Chance of Frost

Temperature (°C)

16
16
16
17
18
20
21
22
23
23
22
22
21
21
20
19
18
18
18
18
19
19
19
19

Feels Like (°C)

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

Dew Point (°C)

15
15
16
16
16
15
15
15
15
17
18
18
19
19
18
18
17
18
18
18
19
18
19
19

Relative Humidity (%)

95
95
96
95
88
75
67
65
61
68
74
79
88
88
91
95
95
100
98
98
100
98
98
98

Pressure (mb)

1021
1021
1021
1021
1022
1022
1021
1021
1021
1021
1020
1020
1019
1019
1018
1018
1018
1018
1017
1016
1016
1016
1015
1015

Ozone (du)

303
303
303
303
303
303
302
302
301
300
300
299
298
296
294
295
295
295
296
296
296
296
297
297

Saturday 29

Waning Gibbous 95%

20:25

08:02

04 Bad
05 Bad
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 OK
02 OK
03 OK

Sun - Rise: 06:34, Set: 19:55, Transit: 13:14. Moon - Rise: 20:25, Set: 08:02. Civil Dark: 20:25 - 06:04. Nautical Dark: 21:02 - 05:27. Astro Dark: 21:41 - 04:48

Total Clouds (% Sky Obscured)

100
100
100
100
100
94
88
84
85
87
91
89
87
86
80
75
64
59
58
53
43
32
17
24

Low Clouds (% Sky Obscured)

96
95
92
65
75
74
72
69
70
72
75
72
70
71
56
41
26
18
9
0
7
16
17
15

Medium Clouds (% Sky Obscured)

84
45
27
23
42
47
52
56
49
43
35
31
25
16
11
6
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

99
100
100
100
100
73
60
84
85
87
91
89
87
86
40
40
35
42
56
53
38
15
1
17

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
1
3
1
0
2
1
0
8
12
13
14
15
17
14
11
2
5
6
4
6
5
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
18
18
18
19
20
20
21
22
22
22
23
22
22
21
20
19
17
16
15
14
14
13
13

Feels Like (°C)

20
19
20
20
20
20
21
21
21
21
22
22
24
23
23
23
22
22
16
17
16
17
17
17

Dew Point (°C)

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

Relative Humidity (%)

96
96
96
96
93
88
84
79
75
73
69
66
72
76
83
88
92
98
96
98
96
96
96
96

Pressure (mb)

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

Ozone (du)

298
301
302
302
303
303
303
303
303
303
304
304
306
307
308
310
311
312
312
313
313
312
312
312

Sunday 30

Waning Gibbous 90%

20:44

09:12

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

Sun - Rise: 06:35, Set: 19:53, Transit: 13:14. Moon - Rise: 20:44, Set: 09:12. Civil Dark: 20:24 - 06:05. Nautical Dark: 21:00 - 05:28. Astro Dark: 21:38 - 04:50

Total Clouds (% Sky Obscured)

36
51
54
67
74
63
41
22
36
46
59
38
26
14
24
33
42
60
78
94
96
96
93
96

Low Clouds (% Sky Obscured)

7
0
0
0
1
1
0
0
0
0
1
3
6
9
6
3
0
0
0
0
8
14
12
10

Medium Clouds (% Sky Obscured)

0
0
0
1
1
1
2
2
1
1
0
0
0
0
0
0
0
1
3
4
26
47
68
78

High Clouds (% Sky Obscured)

31
51
41
45
52
44
35
18
23
22
15
0
0
0
16
32
42
60
78
94
93
87
80
87

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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
10

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)

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

Chance of Frost

Temperature (°C)

13
13
13
14
16
17
19
21
23
23
24
24
23
22
21
19
17
16
15
15
15
15
15
16

Feels Like (°C)

15
14
15
15
15
14
18
19
20
21
22
23
24
23
22
23
23
23
14
16
16
15
15
14

Dew Point (°C)

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

Relative Humidity (%)

98
96
96
93
90
86
70
58
47
45
42
39
44
49
55
63
73
86
89
92
95
87
82
75

Pressure (mb)

1020
1021
1021
1021
1021
1021
1021
1021
1021
1020
1020
1019
1019
1019
1018
1018
1018
1018
1018
1017
1017
1016
1016
1015

Ozone (du)

312
313
313
314
315
315
316
317
318
319
320
321
321
322
322
321
319
317
316
315
314
312
310
308

Monday 31

Waning Gibbous 87%

21:05

10:25

Sun - Rise: 06:36, Set: 19:52, Transit: 13:14. Moon - Rise: 21:05, Set: 10:25. Civil Dark: 20:22 - 06:06. Nautical Dark: 20:58 - 05:30. Astro Dark: 21:36 - 04:52

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 25/08/26 04:25:28. Forecast: 25/08/26 to 31/08/26. Timezone: UTC-3.00