This free online moon calendar is good for everybody who wants to see the Moon Phases of September 2025. The first day of this month starts with the phase. Thanks to the Monthly Moon Phase Calendar, you can also check the exact Full Moon, New Moon, First Quarter, and Last Quarter dates for September 2025. Visit also the 2025 Moon Phases Calendar to see all the daily moon phases for this year.
September 2025
New Moon
This is the first and invisible phase of the Moon, with the illuminated side of the Moon facing the Sun and the night side facing Earth. The New Moon is only directly visible during a solar eclipse.
First Quarter
A week after new moon comes first quarter, when the Moon is a quarter of the way around its orbit. It is also termed a Half Moon. A First Quarter Moon rises around noon and sets around midnight.
Full Moon
At 100% phase illumination, the day side of the Moon is directly pointed at the night side of the Earth and the Moon is full. A Full Moon rises around sunset and sets around sunrise and it looks bigger when it is near the horizon.
Last Quarter
The Moon enters the Last Quarter (or Third Quarter) of its orbit at nearly 23 days old. Only half of it appears to be illuminated. You can see this phase at late night and in the early morning (6 am).
A supermoon occurs when the Moon's orbit is closest (perigee) to Earth at the same time the Moon is full. At such a time, the Moon can look larger and brighter than it normally does - especially when it is seen rising above the horizon. However, it's important to note that the actual difference in size and brightness between a supermoon and an average full moon is not typically dramatic, and may not be noticeable to the naked eye without a direct comparison.
More Moon FactsNo, the moon has no water and has only a very thin and tenuous atmosphere (called an exosphere) so it cannot trap heat or insulate the surface. So, for example, there is no wind to create weather system. The Moon does, in fact, affect the Earth's climate and weather patterns in several subtle ways.
More Moon FactsNo, it doesn’t generate its own light. “Moonlight” is really sunlight that has reflected off of the Moon’s surface. In the same way that the Sun illuminates Earth, the Moon reflects the Sun's light, making it appear bright in our sky.
More Moon FactsThe Moon makes Earth a more livable planet by moderating our home planet's wobble on its axis, leading to a relatively stable climate.
More Moon FactsAn analysis of moon's mineral composition suggests that the moon is around 4.425 billion years old.
More Moon FactsThis is an optical illusion. The Moon looks large shortly after it rises when it's still touching the horizon. This is not the same as a Supermoon.
More Moon PhasesNo, it doesn’t generate its own light. “Moonlight” is really sunlight that has reflected off of the Moon’s surface. In the same way that the Sun illuminates Earth, the Moon reflects the Sun's light, making it appear bright in our sky.
More Moon PhasesHere are the top 5 things that make the Moon so unique.
1. The Moon is Earth's only permanent natural satellite.
2. Moon dust smells like gunpowder.
3. The Moon keeps the same face pointing toward the Earth.
4. The Moon has no – or just a really thin – atmosphere so there is no weather.
5. The Moon is visible in daylight nearly every day.
The Moon makes Earth a more livable planet by moderating our home planet's wobble on its axis, leading to a relatively stable climate.
More Moon PhasesThe Moon is the fifth largest satellite in the Solar System and the biggest in comparison to its host planet, with a diameter about one-quarter that of Earth. The exact diameter is 2159.14 miles (3 474.8 km ).
More Moon PhasesAn orange moon means the shorter wavelengths of light are being filtered away. This could be due to the low position on the horizon causing the light to go through more atmosphere, smoke in the air, or pollution.
More Fun FactsNo, it doesn’t generate its own light. “Moonlight” is really sunlight that has reflected off of the Moon’s surface. In the same way that the Sun illuminates Earth, the Moon reflects the Sun's light, making it appear bright in our sky.
More Fun FactsThe Moon makes Earth a more livable planet by moderating our home planet's wobble on its axis, leading to a relatively stable climate.
More Fun FactsThe Moon crust is made of composed primarily of oxygen (O), silicon (Si), magnesium (Mg), iron (Fe), calcium (Ca), and aluminum (Al), but important minor and trace elements such as titanium (Ti), uranium (U), thorium (Th), potassium (K), and hydrogen (H) are present as well. Below the crust is the mantle coming, with a thickness of roughly 1350 km is far more extensive than the crust, which has an average thickness of about 50 km. The mantle is made of olivine, orthopyroxene and clino pyroxene. Finally, at the center is the Moon’s dense, metallic core. The core is largely composed of iron (Fe) and some nickel (Ni). The inner core is a solid mass of about 480 km in diameter. Surrounding the solid inner core is a fluid outer core, that brings the total diameter of the core to about 660 km.
More Fun FactsIt depends on the time of day. The Moon is very hot in the daytime and very cold at night. The average temperature on the Moon varies from -298 degrees Fahrenheit (-183 degrees Celsius), at night, to 224 degrees Fahrenheit (106 degrees Celsius) during the day.
More Fun Facts
MoonPhaseToday.org allows you to view the moon phase for today and tonight, or any given day, month, and year. The moon phase calculation is based on your time zone but we also show you the exact times in UTC format. Hope you find our tool useful and easy to use to find the phases of the Moon.
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