How to get CPU temperature in C#

This method is more native to Windows but may not always provide CPU temperature information depending on the system and hardware support.

Although not every motherboard includes a built-in temperature monitor, you can potentially retrieve this information if it's available through Windows Management Instrumentation (WMI). Specifically, you can query the MSAcpi_ThermalZoneTemperature class, which is commonly used for accessing CPU temperature data on some systems.

Additionally, the Win32_TemperatureProbe WMI class provides properties related to temperature sensors, which are essentially electronic thermometers. Most of the information provided by Win32_TemperatureProbe comes from the System Management BIOS (SMBIOS). However, real-time temperature readings for the CurrentReading property cannot be directly extracted from SMBIOS tables.

ManagementObjectSearcher C# Example

ManagementObjectSearcher searcher = new ManagementObjectSearcher(@"root\WMI", "SELECT * FROM MSAcpi_ThermalZoneTemperature");
ManagementObjectCollection objCollection = searcher.Get();

foreach (ManagementObject obj in objCollection)
{
     double temperature = Convert.ToDouble(obj["CurrentTemperature"].ToString());
     temperature = (temperature - 2732) / 10.0; // Convert to Celsius
     Console.WriteLine($"CPU Temperature: {temperature}°C");
}

This example queries the MSAcpi_ThermalZoneTemperature class in WMI, which is commonly used to retrieve CPU temperature information on some systems. It converts the temperature from Kelvin to Celsius and prints it.