Is 36.4℃ a low-grade fever?
Nov 24, 2025
Source: Cainiu Health
Dr. Ren Yi
Introduction
If the body temperature is measured correctly (e.g., drying sweat before axillary measurement and remaining at rest for 5–10 minutes), and the measurement environment is stable (without immediate measurement after vigorous exercise or emotional excitement), a temperature of 36.4°C falls within the normal range. In the absence of symptoms such as fatigue, chills, or other discomforts, there is no need to worry about low-grade fever; this represents a normal body temperature state.
Generally, 36.4°C is not considered a low-grade fever. The normal body temperature range is typically between 36.0°C and 37.2°C. Only when there are special measurement errors or individual baseline abnormalities should one be cautious. If in doubt, it is recommended to seek medical advice promptly. Specific analysis is as follows:
If the temperature is measured correctly (e.g., drying sweat before axillary measurement and remaining at rest for 5–10 minutes) and under stable environmental conditions (without measuring immediately after intense physical activity or emotional excitement), 36.4°C falls within the normal physiological temperature range. In the absence of symptoms such as fatigue or chills, there is no need to worry about a low-grade fever—this represents a normal body temperature state.
If improper measurement techniques occur (such as sweat under the armpit or insufficient measurement time), or if an individual normally has a baseline temperature consistently below 36.0°C, then 36.4°C might be slightly elevated relative to their personal norm. If accompanied by mild symptoms like dizziness or muscle aches, repeat the measurement using standardized methods to confirm the reading and rule out misinterpretation due to measurement error. In such cases, a diagnosis of low-grade fever should not be made immediately.
For daily temperature monitoring, it is advisable to measure at the same time and same body site consistently to ensure uniform measurement conditions. If repeated measurements show significant fluctuations or persistent discomfort symptoms develop, seek timely medical evaluation to determine the cause of temperature changes and prevent delays in addressing potential health issues.
