Weather in Santarem

Stay up to date with the current weather conditions in Santarem. Below are the latest data, forecasts, and visual charts to help you plan your trip.

The climate of Santarem can be described as hot and tropical, typical of the Amazon region. Eternal summer reigns here: air temperatures remain high and remarkably stable throughout the year, with virtually no sharp fluctuations. Average figures stay within the range of 27°C to 30°C, creating warm and humid conditions that travellers should prepare for in advance.

Throughout the year, the weather is divided into two distinct periods: the wet and dry seasons. From January to May, the rainy season occurs, when precipitation falls very frequently — up to 28-30 days a month. During this time, the sky is often cloudy, but the rains are usually warm and quickly give way to clearings, supporting the lush blooming of the local nature.

The second half of the year, especially from August to November, marks the dry season. The number of rainy days decreases sharply, and the sun shines much brighter. September and October become the hottest months of the year, when daytime temperatures can reach 32.5°C. This time is considered the most favourable for beach holidays on the riverbanks, as water levels drop and the probability of precipitation is minimal.

The climate of Santarem is characterized by amazing stability: an eternal equatorial summer reigns here without distinct seasonal changes. Travellers will not have to worry about the cold, as the average air temperature throughout the year fluctuates in a comfortable, yet hot range from 27°C to 30°C.

The temperature maximum in the region is observed in the second half of the year. The hottest months are traditionally September and October, when the thermometer regularly rises to 32.5°C during the day. The period from January to April can be called conditionally "cooler", although the difference is barely perceptible: average values at this time are around 27°C, creating slightly milder conditions for adapting to the tropics.

A characteristic feature of the weather in Santarem is very warm nights. Daily temperature fluctuations are minimal, and even after sunset, the air cools down only to 25°C — 27°C. Thanks to this, tourists can enjoy long evening walks without fear of freezing, however, one should be prepared for a feeling of constant humidity.

In Santarem, located in the very heart of Brazil, precipitation falls exclusively as rain, which is typical for the hot tropical climate of this region. Two distinct periods can be distinguished during the year: a prolonged rainy season and a shorter dry season. Travellers planning a trip in the first half of the year should definitely take an umbrella or a raincoat with them.

The wettest period lasts from December to May. During this time, rains occur with enviable regularity: for example, in January, March, and April, about 28 rainy days are recorded, and in May this figure reaches its maximum — precipitation can fall almost daily (up to 30 days a month). Despite the high frequency of rains, they are an integral part of the region's ecosystem, supporting the lush vegetation.

The dry season begins in July and reaches its peak in early autumn. The driest months are August and September. In September, for example, the number of rainy days is reduced to a minimum — on average only about 6 days for the entire month, and precipitation levels drop to 1 mm. This time is most favourable for those tourists who prefer clear weather for walks and excursions.

When packing for Santarem, it is worth remembering that a hot tropical climate with high temperatures prevails here year-round. The basis of your wardrobe should be light, loose clothing made of natural breathable fabrics, such as cotton or linen. T-shirts, shorts, and summer dresses will be the most comfortable choice, as the average daytime temperature rarely drops below 27°C. Be sure to take comfortable, broken-in shoes: sandals will be useful for city walks, and closed light trainers for excursions to natural attractions.

Particular attention should be paid to protection from moisture, as the number of rainy days varies significantly depending on the season. In the period from January to May, it rains almost daily, so a light, compact raincoat or a high-quality umbrella will be indispensable items in your luggage. In the drier months, from August to October, precipitation is minimal, but the sun becomes especially active — temperatures can reach 32°C and higher. At this time, it is critically important to have a wide-brimmed hat and sunglasses with you.

In addition to clothing, do not forget about protective products: high SPF sunscreen and a reliable insect repellent are mandatory at any time of the year. Given the presence of beautiful river beaches in the region, be sure to put swimwear in your suitcase. For evenings, which remain warm (about 25–26°C), a thin long-sleeved shirt or a light cardigan may be useful to protect yourself from mosquitoes near the water.