Lunar Calendar Month August 2018 (Costa Rica)

The Moon is the only natural satellite of the Earth and the fifth largest moon in the Solar System. It is the largest natural satellite in the solar system relative to the size of its planet. The following is information specific for San José, Costa Rica during August 2018.

Choose a country from the list to get relevant information:

Date and time of moon phases

The information in the following table comes from calculations published by the Astronomical Applications Department of the U.S. Naval Observatory.

Moon phases	Dates	Time
3rd quarter	2018-08-04	12:18
new moon	2018-08-11	03:58
1st quarter	2018-08-18	01:48
full moon	2018-08-26	05:56

Apogee and perigee of the Moon

The following table shows the dates of perigee and apogee of the Moon during August 2018.

Position	Dates	Time	Distance	Notes
Perigee	2018-08-10	12:06	358,082 km
Apogee	2018-08-23	05:25	405,743 km

Eclipses in August 2018

The following is information about eclipses occuring worldwide during August 2018. The eclipses listed here may be totally visible, partly visible or not visible in any part of Costa Rica.

Type	Dates	Saros	Notes
solar eclipse	2018-08-11	155

Meteor Activity

Active meteor showers this month and their peak days. For more information, see the meteor shower calendar 2018.

Name	Peak Day
Perseids	2018-08-12
κ-Cygnids	2018-08-18

Moon-Planet Conjunctions

A Moon-planet conjunction occurs when an astronomical object has either the same, or nearly the same, right ascension or the same ecliptic longitude of that of the Moon, as observed from Earth.

Astronomical Objects	Date and Time
Aldebaran	2018-08-06 12:35
Venus	2018-08-14 07:35
Jupiter	2018-08-17 04:38
Saturn	2018-08-21 03:55

Illumination of the Moon

The following table depicts the illumination of the Moon, calculated at 00:00, throughtout the 31 days of August 2018.

August 2018
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 31	30Monday	31Tuesday	1Wednesday 83% illuminated Age:18.8	2Thursday 74.9% illuminated Age:19.7	3Friday 65.7% illuminated Age:20.7	4Saturday 55.5% illuminated Age:21.6	5Sunday 44.8% illuminated Age:22.6
Week 32	6Monday 34% illuminated Age:23.7	7Tuesday 23.7% illuminated Age:24.8	8Wednesday 14.4% illuminated Age:25.9	9Thursday 7% illuminated Age:27	10Friday 2.1% illuminated Age:28.2	11Saturday 0% illuminated Age:29.3	12Sunday 1.1% illuminated Age:1
Week 33	13Monday 5% illuminated Age:2.1	14Tuesday 11.4% illuminated Age:3.2	15Wednesday 19.6% illuminated Age:4.3	16Thursday 29% illuminated Age:5.3	17Friday 39% illuminated Age:6.3	18Saturday 49.2% illuminated Age:7.3	19Sunday 59.1% illuminated Age:8.2
Week 34	20Monday 68.5% illuminated Age:9.2	21Tuesday 77% illuminated Age:10.1	22Wednesday 84.5% illuminated Age:11	23Thursday 90.7% illuminated Age:11.8	24Friday 95.4% illuminated Age:12.7	25Saturday 98.6% illuminated Age:13.6	26Sunday 99.9% illuminated Age:14.5
Week 35	27Monday 99.5% illuminated Age:15.5	28Tuesday 97.1% illuminated Age:16.4	29Wednesday 92.8% illuminated Age:17.3	30Thursday 86.7% illuminated Age:18.3	31Friday 78.9% illuminated Age:19.2	1Saturday	2Sunday
	3Monday	4Tuesday	5Wednesday	6Thursday	7Friday	8Saturday	9Sunday
	10Monday	11Tuesday	12Wednesday	13Thursday	14Friday	15Saturday	16Sunday