Mato Grosso

Planning your day in the state of Mato Grosso? Check out the latest weather data and forecasts right here to be prepared for any surprises nature might have in store.

Mato Grosso has a predominantly tropical climate, characterized by hot weather throughout the year. There is no conventional division into a cold winter and a hot summer; instead, the year is split into two distinct seasons defined by rainfall rather than temperature fluctuations.

The primary difference in weather is observed between the wet season, which lasts roughly from November to April, and the dry season, occurring between May and September. During the wet season, rain is very frequent, sometimes falling for up to 26–27 days a month, which maintains high humidity levels. The dry season, especially in June and July, is characterized by a near-total absence of precipitation, clear skies, and an abundance of sunny days. During this time, daytime temperatures can reach their peak, rising above 35°C.

Therefore, when planning a trip to Mato Grosso, it is best to be guided by the rainfall seasons. If you prefer sunny and dry weather, the ideal time for a visit is from May to September. If you aren't deterred by frequent tropical downpours that make nature especially lush and vibrant, then the wet season months will suit you well.

The climate in Mato Grosso is typically tropical, with high temperatures throughout the year and minor seasonal variations. The average annual temperature stays steadily between 25–29°C, creating a sense of eternal summer. The hottest months are August, September, and October. During this time, daytime temperatures regularly rise above 33°C, and in September, they can peak at around 35°C. The "coolest" months are June and July, although it remains very warm during the day. The main difference during this period is the fresher nights, when temperatures can drop to 19–20°C.

Temperature patterns in Mato Grosso are closely linked to the rainy seasons. The wet season, lasting roughly from November to April, is characterized by consistently hot and humid weather. There is little difference between day and night temperatures during this time: around 30°C during the day and a comfortable 22–23°C at night. The dry season, from May to October, brings the most significant daily temperature fluctuations. Days during this period can be very sweltering and dry, with highs of up to 32–35°C, while nights become noticeably cooler. This contrast is particularly pronounced in July and August, when the difference between daytime and nighttime temperatures can exceed 13°C.

In Mato Grosso, the climate is characterized by pronounced seasonal rainfall, which divides the year into two distinct periods: a long rainy season and a parched dry season. Understanding these cycles is key to planning a comfortable trip to this region of Brazil.

The rainy season usually lasts from November to April. During this time, precipitation becomes a frequent occurrence. Humidity peaks between December and February, when the number of rainy days reaches its maximum — up to 26–27 days per month. This means it rains almost daily. The wettest month in terms of rainfall volume is February, although December leads in the number of rainy days.

Starting in May, the dry season arrives and lasts until September. In these months, the chance of rain is minimal. June, July, and August are the driest, with almost no precipitation recorded. For example, July typically sees no rainy days on average. This period is marked by clear, sunny weather, making it ideal for outdoor activities and exploring nature without the risk of getting soaked.

When planning a trip to Mato Grosso, it's important to consider its hot tropical climate, which dictates the essentials for your suitcase. Regardless of the season, the basis of your wardrobe should consist of light, loose, and breathable clothing made from natural fabrics like cotton or linen. The sun is very intense here year-round, so sunscreen with a high SPF, a wide-brimmed hat or cap, and high-quality sunglasses are absolute necessities. To explore the region's rich natural beauty, comfortable closed-toe shoes, such as light trekking boots or sneakers, are indispensable. An effective insect repellent is also highly recommended.

The weather in Mato Grosso is divided into two clear seasons, which requires some extra preparation. The rainy season, lasting from approximately November to April, is characterized by high humidity and frequent, almost daily showers. During this period, you will need a light waterproof jacket or raincoat, as well as quick-drying clothes. The dry season, from May to September, brings very hot days, but evenings and nights can be noticeably cooler. Layering is the ideal approach for this time of year: bring a light sweater, cardigan, or long-sleeved shirt to throw over a T-shirt after dark. This will ensure you stay comfortable at any time of day.