Moonrise, Moonset, and Phase Calendar for Boulder (USA) May 2025

Day

Day of
the week

Moon
day

Moonrise

Moonset

Moonrise

Moon
Noon

Distance
(km)

Illumination

Moon
Phase

01

Thu

4

00:07

08:54

17:02

371851

19.12%

02

Fri

5

01:05

10:03

18:01

378228

28.74%

03

Sat

6

01:50

11:14

18:55

384662

39.06%

04

Sun

7

02:24

12:24

19:44

390717

49.49%

First
Quarter
07:51

05

Mon

8

02:52

13:30

20:28

396066

59.61%

06

Tue

9

03:15

14:33

21:10

400491

69.06%

07

Wed

10

03:36

15:33

21:49

403882

77.58%

08

Thu

11

03:55

16:33

22:28

406214

84.97%

09

Fri

12

04:15

17:32

23:08

407526

91.05%

10

Sat

13

04:35

18:33

23:49

407896

95.65%

11

Sun

14

04:58

19:35

407421

98.61%

12

Mon

15

05:24

20:38

00:33

406192

99.84%

Full
Moon
10:55

13

Tue

16

05:56

21:41

01:20

404285

99.26%

14

Wed

17

06:35

22:41

02:09

401752

96.86%

15

Thu

18

07:22

23:35

03:02

398625

92.69%

16

Fri

19

08:18

03:56

394921

86.84%

17

Sat

20

00:21

09:21

04:49

390665

79.46%

18

Sun

21

01:00

10:29

05:41

385909

70.71%

19

Mon

22

01:33

11:39

06:32

380761

60.85%

20

Tue

23

02:01

12:49

07:20

375401

50.18%

Third
Quarter
05:58

21

Wed

24

02:26

14:00

08:07

370100

39.16%

22

Thu

25

02:50

15:12

08:55

365215

28.35%

23

Fri

26

03:14

16:27

09:44

361165

18.42%

24

Sat

27

03:40

17:45

10:35

358378

10.09%

25

Sun

28

04:11

19:06

11:32

357223

4.03%

26

Mon

29

04:48

20:28

12:32

357929

0.72%

New
Moon
21:02

27

Tue

1

05:36

21:44

13:37

360526

0.41%

28

Wed

2

06:34

22:49

14:43

364830

3.02%

29

Thu

3

07:43

23:41

15:46

370471

8.22%

30

Fri

4

08:56

16:44

376955

15.50%

31

Sat

5

00:21

10:08

17:37

383749

24.24%

All times are local time for Boulder

Moon phase details:

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Moon phases for:
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