You don't have a temperature.
Kimi wa netsu ga nai.
you; buddy; pal; monarch; ruler; sovereign; (one's) master
topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
heat; fever; temperature; zeal; passion; enthusiasm; mania; craze; rage
indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and
nonexistent; not being (there); unpossessed; unowned; not had; unique; indicates negation, inexperience, unnecessariness or impossibility; not ...; to not be...; to have not ...