Air temperature near the surface. For reference, the average surface air temperature in downtown Honolulu is 72°F (22°C) in February, the coolest month, and 78°F (26°C) in August, the warmest month, ranging a mere 6°F (4°C). Temperatures rarely exceed 90°F (32°C) except in dry, leeward (western) areas, and nighttime temperatures rarely fall below 50°F (10°C) at low elevations. The upper slopes of Mauna Kea and Mauna Loa are covered with snow during the winter.
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