Â鶹ӳ»­

• Current Season

  

  Spring 2025

  Start (March equinox)

  Mar 202:01 am

  Duration 92 days, 17 hrs, 40 mins

• Next Season

  

  Summer 2025

  Start (June solstice)

  Jun 207:42 pm

  Duration93 days, 15 hrs, 37 mins
• 

  Autumn 2025

  Start (September equinox)

  Sep 2211:19 am

  Duration 89 days, 20 hrs, 43 mins
• 

  Winter 2025-2026

  Start (December solstice)

  Dec 217:03 am

  Duration 88 days, 23 hrs, 42 mins

Countries define seasons differently. This calculator refers to astronomical seasons, not meteorological seasons. All Â鶹ӳ»­ are local time for Seattle.

Learn more about equinoxes and solstices

When Does Spring Start?

The first day of spring is at the vernal equinox, when day and night are equal. Find out the exact time and date.

When Does Summer Start?

When is the summer solstice 2025 in the southern and northern hemispheres?

When Does Fall Start?

North of the equator, fall begins in September. Find out the exact dates for both hemispheres.

When Does Winter Start?

The first day of winter in the Northern Hemisphere is in December; south of the equator, it is in June. Find out exactly when the winter season starts.

March Equinox

At the March equinox, the Sun crosses the equator from south to north. Explanation and 2025 equinox date.

June Solstice 2025

The June solstice is the longest day of the year in the Northern Hemisphere and the shortest day in the Southern Hemisphere.

September Equinox

The Sun shines directly on the Equator on the September equinox and the length of day and night is nearly equal, but not quite.

December Solstice

December solstice marks the shortest day north of the equator and the longest day in the south.