Expected Survival Time in Cold Water Water TemperatureExhaustion or Unconsciousness inExpected Survival Time 50–60° F (10–16° C)1–2 hours1–6 hours 40–50° F (4–10° C)30–60 minutes1–3 hours 32.5–40° F (0–4° C)15–30 minutes30–90 minutes <32° F (<0° C)Under 15 minutesUnder 15–45 minutes 2 more rows