Været i Armação dos Búzios i juni

Winter here is the clearer half of the year and regulars recommend it for exactly that: fewer wet days, quieter beaches, low-season prices, and days still warm enough to lie on the sand. Our row gives 26.9C by day reading as 28C, with 35.6mm of rain across 7.4 days - a third of what the summer brings. The catch is the evening, which drops to 18.9C and wants a layer, and the sun, which manages only 8.6 hours inside 10.8 of daylight, so the beach day is short. On the water they are blunt and our column agrees: at 23C the sea is cold here in any season. The record: humidity 79 percent, a 9.5 kph wind and AQI 84.

Búzios' forum generally likes October - pleasant spring temperatures, mostly blue skies, and genuinely low crowds in the first half of the month before an October 12-15 holiday period brings a short price and crowd spike. One quirk worth knowing before picking a beach: the northern beaches (Tartaruga, Azeda, João Fernandes) catch warmer currents while the southern ones (Geribá, Tucuns) run noticeably colder, and an occasional cold-water upwelling from further south can chill things further. Posters treated this as normal, not a reason to avoid the month - just something to factor into which beach to pick.

Forum posters describe April daytime highs typically in the upper-70s to low-80sF (roughly 27-28C), cooling to a comfortable 70F (21C) at night - genuinely pleasant beach weather with lower humidity than the more oppressive summer months. Posters call April the tail end of high season rather than truly low season: prices have come down from peak, beaches are noticeably less crowded, but the town isn't dead either. Landing between Easter and Brazil's mid-April national holiday (the 21st), posters consistently name this as a strong sweet-spot window - cooler, drier, and quieter than peak summer, without yet losing all the energy of the high season crowd.