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Solar wind — December 4, 2025

December 4, 2025
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Solar wind parameters

Solar wind speed

668 km/s high (average for 24 hours)
Solar wind speed for December 3 and 4, 2025, according to data from the ACE spacecraft Solar wind speed for December 3 and 4, 2025.
Solar wind speed
PNG API: JSON | TXT

Solar wind density

3 cm-3 normal (average for 24 hours)
Solar wind density for December 3 and 4, 2025, according to data from the ACE spacecraft Solar wind density for December 3 and 4, 2025.
Solar wind density
PNG API: JSON | TXT

Solar wind temperature

356 000 K high (average for 24 hours)
Solar wind temperature for December 3 and 4, 2025, according to data from the ACE spacecraft Solar wind temperature for December 3 and 4, 2025.
Solar wind temperature
PNG API: JSON | TXT

Solar wind magnetic field induction

9.3 nT normal (average for 24 hours)
Solar wind magnetic field induction for December 3 and 4, 2025, according to data from the ACE spacecraft Solar wind magnetic field induction for December 3 and 4, 2025.
Solar wind magnetic field induction
PNG API: JSON | TXT

The Bz component of the solar wind magnetic field

+0.7 nT positive (average for 24 hours)
The Bz component of the solar wind magnetic field for December 3 and 4, 2025, according to data from the ACE spacecraft. A negative, blue Bz value (southern direction of the field) promotes the development of magnetic storms and northern lights. The Bz component of the solar wind magnetic field for December 3 and 4, 2025.
The Bz component of the solar wind magnetic field
PNG API: JSON | TXT