Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 11

Waning Crescent 2%

03:56

20:49

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

Sun - Rise: 06:16, Set: 21:10, Transit: 13:43. Moon - Rise: 03:56, Set: 20:49. Civil Dark: 21:49 - 05:37. Nautical Dark: 22:40 - 04:46. Astro Dark: 23:44 - 03:42

Total Clouds (% Sky Obscured)

31
33
27
3
28
10
4
13
23
27
26
32
29
60
92
62
21
5
3
3
6
21
6
4

Low Clouds (% Sky Obscured)

15
7
0
0
0
0
0
5
14
18
20
22
20
25
27
28
19
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

8
2
6
2
26
9
4
5
5
6
3
7
7
44
78
42
3
5
3
2
5
19
4
4

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)

4
4
3
3
3
3
3
5
6
7
7
7
8
9
11
11
11
11
10
10
10
9
8
7

Chance of Frost

Temperature (°C)

14
13
12
10
10
10
13
16
18
20
21
22
23
23
23
23
23
22
21
19
16
15
14
13

Feels Like (°C)

14
14
12
11
10
11
13
16
18
19
20
21
21
21
20
19
19
20
18
16
14
13
12
11

Dew Point (°C)

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

Relative Humidity (%)

90
92
92
91
90
90
76
63
52
44
38
34
33
33
36
40
42
40
36
44
50
57
65
71

Pressure (mb)

1024
1024
1025
1025
1025
1026
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025
1025
1025
1025
1025
1026
1026
1027
1027

Ozone (du)

313
314
313
313
312
311
311
311
312
312
312
311
312
311
311
311
311
311
311
311
311
310
309
309

Wednesday 12

New Moon 0%

05:30

21:09

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

Sun - Rise: 06:18, Set: 21:08, Transit: 13:43. Moon - Rise: 05:30, Set: 21:09. Civil Dark: 21:47 - 05:39. Nautical Dark: 22:37 - 04:49. Astro Dark: 23:40 - 03:46

Total Clouds (% Sky Obscured)

8
78
50
7
23
30
36
75
81
100
91
98
45
79
81
58
64
31
24
3
3
0
2
1

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)

6
78
49
5
20
26
33
69
81
100
85
95
45
78
80
56
62
28
18
2
2
0
2
1

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

Chance of Frost

Temperature (°C)

12
11
11
10
10
11
13
16
19
21
24
26
27
28
29
30
29
29
26
22
21
20
19
18

Feels Like (°C)

11
10
8
9
9
9
12
14
17
18
20
23
23
25
26
28
27
26
26
20
19
18
17
16

Dew Point (°C)

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

Relative Humidity (%)

75
79
80
81
83
78
63
49
38
29
23
20
18
18
17
17
17
18
24
31
32
34
38
41

Pressure (mb)

1027
1027
1026
1026
1026
1027
1027
1027
1026
1026
1026
1026
1025
1025
1024
1024
1024
1023
1023
1024
1024
1024
1024
1024

Ozone (du)

309
310
311
313
314
314
314
314
314
315
314
313
311
309
309
309
309
309
308
308
308
308
309
308

Thursday 13

Waxing Crescent 1%

07:01

21:23

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

Sun - Rise: 06:19, Set: 21:06, Transit: 13:43. Moon - Rise: 07:01, Set: 21:23. Civil Dark: 21:45 - 05:41. Nautical Dark: 22:35 - 04:51. Astro Dark: 23:36 - 03:49

Total Clouds (% Sky Obscured)

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

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)

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)

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

Chance of Frost

Temperature (°C)

17
17
16
15
15
15
18
22
25
28
30
32
33
34
35
35
35
34
32
28
25
23
22
22

Feels Like (°C)

16
16
14
14
14
14
18
20
23
26
28
31
32
32
33
33
33
32
31
26
24
21
21
20

Dew Point (°C)

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

Relative Humidity (%)

42
44
47
50
51
48
41
31
26
22
19
16
15
14
13
13
13
14
19
26
27
27
29
30

Pressure (mb)

1024
1023
1023
1023
1023
1023
1023
1023
1023
1022
1022
1022
1021
1020
1020
1019
1018
1018
1018
1018
1017
1017
1017
1016

Ozone (du)

308
309
309
308
306
305
305
306
306
305
304
304
304
304
305
306
306
305
305
305
305
305
305
305

Friday 14

Waxing Crescent 4%

08:28

21:36

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

Sun - Rise: 06:21, Set: 21:04, Transit: 13:43. Moon - Rise: 08:28, Set: 21:36. Civil Dark: 21:43 - 05:43. Nautical Dark: 22:32 - 04:53. Astro Dark: 23:33 - 03:52

Total Clouds (% Sky Obscured)

1
0
0
9
17
29
24
34
3
6
8
12
17
35
36
57
66
53
56
53
53
57
62
65

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
3
6
9
6
3
0
0
0
0
10
18
23
26
35
44

Medium Clouds (% Sky Obscured)

0
0
0
6
12
18
12
6
0
0
0
0
3
7
10
7
9
3
13
21
31
36
41
46

High Clouds (% Sky Obscured)

0
0
0
0
0
5
8
34
3
2
2
2
3
20
14
45
56
49
41
31
19
13
7
1

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
1
2
2

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)

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

Chance of Frost

Temperature (°C)

21
21
20
19
20
21
22
25
27
30
31
32
32
31
30
29
28
26
24
21
19
18
18
18

Feels Like (°C)

19
19
18
17
18
18
20
23
25
29
30
30
29
29
27
27
25
24
24
23
21
20
20
19

Dew Point (°C)

4
4
3
3
4
4
5
8
9
11
10
10
11
11
11
11
11
12
14
18
18
17
17
17

Relative Humidity (%)

32
33
33
33
34
33
31
33
31
30
27
26
27
28
30
32
35
41
54
81
92
92
90
92

Pressure (mb)

1016
1016
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

305
305
304
303
302
303
303
303
304
306
305
303
302
301
301
301
302
303
303
303
302
301
301
302

Saturday 15

Waxing Crescent 10%

09:50

21:47

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

Sun - Rise: 06:22, Set: 21:02, Transit: 13:42. Moon - Rise: 09:50, Set: 21:47. Civil Dark: 21:40 - 05:44. Nautical Dark: 22:29 - 04:55. Astro Dark: 23:29 - 03:56

Total Clouds (% Sky Obscured)

65
66
67
61
53
59
54
63
97
88
77
67
69
81
90
83
77
70
81
91
100
99
99
98

Low Clouds (% Sky Obscured)

42
43
49
40
35
24
23
21
20
23
29
32
42
50
62
54
43
34
23
12
4
2
1
0

Medium Clouds (% Sky Obscured)

46
43
40
37
36
45
21
11
4
2
44
34
29
23
20
20
21
32
26
18
10
8
5
3

High Clouds (% Sky Obscured)

1
0
0
0
0
2
20
37
95
81
65
43
28
26
25
33
42
50
67
82
100
99
99
98

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
6
2
5
4
1
2
0
0
0
0
0
0
0
0
1
1
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)

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

Chance of Frost

Temperature (°C)

18
17
17
17
17
17
19
21
23
25
26
27
28
27
25
24
23
22
20
19
17
16
15
14

Feels Like (°C)

19
19
19
19
18
19
20
23
25
25
26
27
27
26
26
26
26
25
24
16
16
16
15
15

Dew Point (°C)

16
16
16
16
15
15
15
14
13
12
11
11
11
12
13
15
15
15
15
14
14
13
13
13

Relative Humidity (%)

92
90
90
92
90
90
78
66
54
45
39
36
34
39
46
54
60
66
72
76
79
83
87
90

Pressure (mb)

1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1014
1015
1015
1015
1015
1016
1016
1016
1016

Ozone (du)

302
303
303
304
304
305
306
304
302
302
304
304
305
306
307
309
310
311
312
314
315
317
318
319

Sunday 16

Waxing Crescent 18%

11:10

21:58

02 Bad
03 Bad
04 OK
05 OK
06 OK
07 OK
08 OK
09 OK
10 OK
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: 06:24, Set: 21:00, Transit: 13:42. Moon - Rise: 11:10, Set: 21:58. Civil Dark: 21:38 - 05:46. Nautical Dark: 22:27 - 04:58. Astro Dark: 23:25 - 03:59

Total Clouds (% Sky Obscured)

85
57
33
35
29
36
33
38
44
53
56
60
59
72
80
85
89
90
93
97
100
95
91
86

Low Clouds (% Sky Obscured)

4
4
6
5
4
5
3
2
0
0
0
0
0
0
0
0
0
0
3
6
7
4
2
0

Medium Clouds (% Sky Obscured)

8
11
13
16
23
30
33
38
44
53
56
60
59
72
80
85
89
85
80
66
56
36
30
28

High Clouds (% Sky Obscured)

78
57
33
35
29
36
33
38
44
53
56
60
59
67
69
76
82
90
93
94
95
80
66
52

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
1
0
1
1
0
0
0
0
1
1
0
0
0
0
0
0
0
11
17
24
32
34
36

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

Chance of Frost

Temperature (°C)

14
13
13
13
13
14
14
16
18
20
21
22
23
23
23
24
22
21
20
19
18
17
16
16

Feels Like (°C)

15
12
13
14
13
13
13
16
17
17
18
18
19
23
23
22
22
23
24
17
17
18
17
16

Dew Point (°C)

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

Relative Humidity (%)

95
96
95
96
92
89
86
71
57
47
43
39
36
35
36
35
41
48
57
63
70
78
82
86

Pressure (mb)

1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1015
1015
1014
1014
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

321
320
320
320
319
318
318
316
315
314
314
314
314
315
316
318
318
318
318
319
320
321
321
322

Monday 17

Waxing Crescent 27%

12:29

22:11

Sun - Rise: 06:26, Set: 20:58, Transit: 13:42. Moon - Rise: 12:29, Set: 22:11. Civil Dark: 21:36 - 05:48. Nautical Dark: 22:24 - 05:00. Astro Dark: 23:22 - 04:02

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 Amersfoort, Gemeente Amersfoort, Netherlands (52.16,5.39)

Generated: 11/08/26 02:37:01. Forecast: 11/08/26 to 17/08/26. Timezone: UTC+2.00