Honolulu grew from a Polynesian settlement dating to at least the 11th century into the seat of the Hawaiian Kingdom after Kamehameha I conquered Oahu in 1795 and made it his royal capital in 1804; it became Hawaii's capital in 1845. The city sits on Oahu's southeast coast about 2,045 nautical miles from California, the most geographically isolated major city in the US. Hawaii carries the highest cost of living of any US state, driven largely by shipping nearly everything the islands consume across the Pacific. The attack on nearby Pearl Harbor on 7 December 1941 drew the US into World War II, and the harbor still hosts the US Pacific Fleet, the world's largest naval command.
Nights sit around 24°C and afternoons around 31°C.
Honolulu barely changes season: afternoons sit around 30°C and nights around 22°C most of the year.
Some February nights drop to 17°C.
Rain is spread through the year — about 606 mm in total, from 89 mm in March down to 24 mm in June — so no single month is a washout.
Wind is a factor: July averages 20 km/h, enough to notice on a terrace or a bike. The air stays clean through the year.
Days stretch to about 13.3 hours of light in June and shrink to 10.7 in December — something to weigh if you work to a fixed timezone.
For what you're after, any month works in Honolulu. Expect fast internet (362 Mbps) and a high cost of living (about €3450 a month).
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