Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 18

Waxing Crescent 5%

06:35

23:03

00 Good
01 Good
02 OK
03 Bad
04 Bad
05 Bad
06 OK
07 OK
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 OK
23 Bad

Sun - Rise: 05:46, Set: 20:26, Transit: 13:06. Moon - Rise: 06:35, Set: 23:03. Civil Dark: 20:58 - 05:14. Nautical Dark: 21:39 - 04:34. Astro Dark: 22:24 - 03:48

Total Clouds (% Sky Obscured)

14
16
45
100
87
54
42
40
55
94
100
100
100
100
100
100
64
95
97
100
99
76
20
75

Low Clouds (% Sky Obscured)

0
1
10
19
23
16
0
0
0
4
13
13
16
4
11
12
0
2
15
17
14
5
3
7

Medium Clouds (% Sky Obscured)

14
16
8
1
0
0
0
2
2
5
1
8
0
37
0
44
27
93
96
48
50
28
14
45

High Clouds (% Sky Obscured)

0
16
45
100
59
18
10
5
32
87
100
100
100
100
100
100
10
4
76
100
99
76
3
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)

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

Chance of Frost

Temperature (°C)

14
14
13
13
13
12
12
13
15
17
18
19
20
20
20
19
19
19
18
18
17
16
15
15

Feels Like (°C)

16
15
14
12
12
12
12
12
14
16
17
17
17
17
16
16
17
16
16
16
15
15
16
16

Dew Point (°C)

8
8
9
9
8
8
8
8
9
9
9
9
9
9
9
9
9
9
9
9
10
10
10
10

Relative Humidity (%)

69
70
72
74
74
76
77
72
66
61
54
50
49
49
48
49
51
53
55
58
63
69
73
75

Pressure (mb)

1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1017
1017
1018
1018

Ozone (du)

356
357
357
358
361
361
361
361
361
358
356
358
357
358
361
363
363
363
365
368
372
375
379
381

Tuesday 19

Waxing Crescent 11%

07:41

00:02

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

Sun - Rise: 05:45, Set: 20:27, Transit: 13:06. Moon - Rise: 07:41, Set: 00:02. Civil Dark: 20:59 - 05:13. Nautical Dark: 21:40 - 04:32. Astro Dark: 22:26 - 03:46

Total Clouds (% Sky Obscured)

70
82
94
100
100
82
81
42
12
6
7
44
49
47
23
15
2
2
15
20
20
46
37
27

Low Clouds (% Sky Obscured)

5
12
16
10
8
0
0
2
3
2
1
10
13
13
13
8
0
2
1
3
18
46
37
27

Medium Clouds (% Sky Obscured)

41
48
78
100
100
54
81
42
7
5
2
20
21
24
0
0
0
0
0
15
20
46
37
13

High Clouds (% Sky Obscured)

0
82
76
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
3
10

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
1
1
1
0
0
0
0
1
1
6
10
8
7
7
5
3
0
0
0
0
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)

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

Chance of Frost

Temperature (°C)

14
13
13
13
13
13
12
13
15
17
19
21
22
22
23
23
22
22
21
20
19
18
18
17

Feels Like (°C)

15
15
14
12
12
11
12
13
15
19
20
22
22
22
21
21
20
20
19
18
17
16
16
15

Dew Point (°C)

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

Relative Humidity (%)

76
78
80
79
79
80
80
75
64
55
48
43
39
38
40
40
41
41
43
48
53
55
55
57

Pressure (mb)

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

Ozone (du)

382
383
384
385
387
388
382
375
371
369
366
364
361
358
355
353
353
353
354
355
358
360
362
363

Wednesday 20

Waxing Crescent 20%

08:56

00:02

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

Sun - Rise: 05:44, Set: 20:28, Transit: 13:06. Moon - Rise: 08:56, Set: 00:02. Civil Dark: 21:00 - 05:12. Nautical Dark: 21:41 - 04:31. Astro Dark: 22:28 - 03:45

Total Clouds (% Sky Obscured)

82
67
70
74
24
3
25
27
30
11
4
0
5
4
0
4
36
37
75
74
46
25
1
12

Low Clouds (% Sky Obscured)

27
3
3
0
0
0
0
0
0
0
0
0
3
2
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

5
34
38
43
14
3
18
19
21
9
3
0
0
0
0
0
0
0
0
0
0
0
0
7

High Clouds (% Sky Obscured)

82
67
70
74
3
0
0
1
0
0
0
0
0
0
0
4
36
37
75
74
46
25
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
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
3
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
4
4
4
4
5
5
5
6
6
6
6
7
9
11
11
11
10
9
6
4
2
1

Chance of Frost

Temperature (°C)

17
16
15
15
15
14
14
14
16
18
20
22
23
24
24
24
23
22
21
21
19
18
18
17

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

61
59
58
62
64
68
70
68
61
53
47
42
39
38
39
45
48
52
56
60
69
75
74
76

Pressure (mb)

1021
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021
1022
1022

Ozone (du)

362
358
356
354
354
354
354
354
354
352
351
350
350
349
352
352
351
349
349
348
350
351
353
353

Thursday 21

Waxing Crescent 31%

10:14

00:48

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

Sun - Rise: 05:44, Set: 20:29, Transit: 13:06. Moon - Rise: 10:14, Set: 00:48. Civil Dark: 21:01 - 05:11. Nautical Dark: 21:42 - 04:30. Astro Dark: 22:29 - 03:43

Total Clouds (% Sky Obscured)

23
32
19
10
0
0
0
0
0
0
0
0
0
0
16
42
52
39
18
1
0
0
0
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
11
4
2
2
1
0
0
0
0

Medium Clouds (% Sky Obscured)

11
15
9
4
0
0
0
0
0
0
0
0
0
0
9
23
35
26
16
0
0
0
0
0

High Clouds (% Sky Obscured)

4
5
3
2
0
0
0
0
0
0
0
0
0
0
0
0
0
2
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
1
1
0
4
6
5
4
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

19
19
17
17
17
16
17
18
20
23
25
26
27
29
28
27
26
25
24
24
25
24
22
21

Dew Point (°C)

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

Relative Humidity (%)

74
74
74
75
75
75
75
69
60
52
45
34
30
30
30
33
35
39
46
52
59
63
57
54

Pressure (mb)

1022
1022
1022
1022
1022
1022
1022
1022
1023
1023
1023
1023
1023
1022
1022
1022
1021
1021
1021
1021
1021
1021
1022
1022

Ozone (du)

355
357
356
355
353
352
353
354
350
348
345
345
348
350
351
357
363
362
360
359
363
367
367
365

Friday 22

Waxing Crescent 42%

11:31

01:23

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

Sun - Rise: 05:43, Set: 20:30, Transit: 13:06. Moon - Rise: 11:31, Set: 01:23. Civil Dark: 21:02 - 05:10. Nautical Dark: 21:43 - 04:29. Astro Dark: 22:31 - 03:42

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
10
20
33
22
13
6
3
1
0
1

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
5
9
6
3
0
0
0
0
0

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
0
0
0
0
0
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

19
20
19
18
17
16
16
18
20
22
24
27
29
28
27
27
27
27
26
26
26
22
22
23

Dew Point (°C)

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

Relative Humidity (%)

55
57
56
57
59
60
61
59
50
43
38
33
31
30
32
35
37
40
43
46
51
53
55
57

Pressure (mb)

1022
1022
1022
1022
1022
1022
1022
1023
1023
1023
1023
1023
1023
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021
1022

Ozone (du)

365
363
361
358
358
359
360
359
359
359
358
355
352
348
344
342
341
339
339
340
340
341
341
342

Saturday 23

First Quarter 53%

12:43

01:50

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

Sun - Rise: 05:42, Set: 20:31, Transit: 13:06. Moon - Rise: 12:43, Set: 01:50. Civil Dark: 21:03 - 05:09. Nautical Dark: 21:45 - 04:28. Astro Dark: 22:32 - 03:41

Total Clouds (% Sky Obscured)

3
4
7
9
10
8
6
4
4
4
3
14
22
32
23
15
7
5
2
0
3
9
12
11

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
5
9
12
7
3
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
3
3
4
4
4
2
0
2
5
5
6

High Clouds (% Sky Obscured)

3
4
7
9
10
8
6
4
4
4
3
9
14
20
13
7
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)

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

Chance of Frost

Temperature (°C)

19
19
19
18
18
17
18
19
20
22
24
26
27
27
28
27
27
26
25
24
22
21
21
20

Feels Like (°C)

22
22
22
19
19
20
20
19
18
23
23
24
24
25
27
29
27
26
26
26
25
21
22
22

Dew Point (°C)

11
11
11
11
11
11
11
10
10
10
10
10
10
10
11
11
12
12
12
12
12
12
13
12

Relative Humidity (%)

59
60
61
62
64
65
60
55
50
45
40
35
34
34
34
36
39
41
44
49
53
56
60
62

Pressure (mb)

1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021
1020
1021
1021
1021

Ozone (du)

340
338
337
336
335
334
334
334
334
334
334
334
336
337
338
340
341
343
345
347
348
348
347
347

Sunday 24

Waxing Gibbous 64%

13:51

02:14

Sun - Rise: 05:41, Set: 20:32, Transit: 13:06. Moon - Rise: 13:51, Set: 02:14. Civil Dark: 21:04 - 05:09. Nautical Dark: 21:46 - 04:27. Astro Dark: 22:34 - 03:39

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 Testaccio, Province of Rome, Italy (41.86,12.48)

Generated: 18/05/26 00:17:44. Forecast: 18/05/26 to 24/05/26. Timezone: UTC+2.00