Brazil
Best Time to Visit Jau
Jau, in São Paulo state, has a humid subtropical climate with a distinct wet summer and drier winter. The city itself is more a regional hub than a tourist destination, so crowds are light year-round apart from a few local events.
✦ Go in April or May for the best balance of mild weather and empty streets.
✅ Best months
April and May: after the summer rains, temps are mild (20-28°C), and the city is quieter. September also works well, with spring blooming and reliable dry weather.
🔥 Peak season
There's no true tourist peak: hotel prices are stable. The biggest event is the ExpoJau (agribusiness fair) in July, which fills hotels briefly and raises rates. Otherwise, December and January see domestic visitors taking holidays, but it's not overwhelming.
💷 Shoulder (best value)
October and November: good weather, lower demand after the mid-year fair, and hotel discounts of 10-20% compared to July.
🌙 Quietest & cheapest
June and July (winter): cool and dry, but few visitors. It's the quietest and cheapest, though some hotels may close for maintenance. Trade-off: less atmosphere, but you'll have the city to yourself.
Jau season by season
Spring (Mar–May)
Weather: Warm and humid early, then cooler; average 22-28°C, rain tapering off.
Crowds: low
Good for outdoor walking in the city parks, like Parque do Povo.
Summer (Jun–Aug)
Weather: Mild and dry; 15-25°C, very little rain.
Crowds: low to medium
ExpoJau in July brings a short-lived spike; otherwise quiet. Ideal for cycling or visiting nearby waterfalls.
Autumn (Sep–Nov)
Weather: Spring-like: 18-28°C, increasing humidity and occasional storms from November.
Crowds: low
Pleasant for exploring the historic centre and local cafes.
Winter (Dec–Feb)
Weather: Hot and wet; 22-32°C, frequent heavy rain, especially January.
Crowds: low
Avoid for outdoor plans; good if you like intense heat and don't mind rain.
🎭 Events worth timing a trip around
ExpoJau (July): São Paulo state's second-largest agribusiness fair, with livestock, concerts, and food. Also, the Festa de São Sebastião (January 20): a local religious celebration with processions and street stalls.
🧳 What to pack
Pack a light rain jacket even in the dry season – thunderstorms can roll in suddenly from September to March.
Found your dates? Get your hotel briefing.
Room tips, the 14-day forecast for your exact stay, dining, transport and more — free for any Jau hotel.
Researched & reviewed by the TripSage editorial team · Updated July 2026.