Calculate your dose
"The radiation would expose
astronauts in orbit to an effective dose 2.5 times greater than that
received by humans in low Earth orbit aboard the international space
station, Zeitlin said. "
Daily average exposure 15 mrad/day (35 mrem/day)
So Mars = about 87 mrem per day = per year 31959.375 = 109 times higher radiation dose than here, toasty!