| Blumenau | |
| Official Name: | Municipality of Blumenau |
| Settlement Type: | Municipality |
| Nickname: | Cidade Jardim ("Garden City") and Alemanha Tropical ("Tropical Germany") |
| Named For: | Hermann Blumenau |
| Motto: | Pro Sancta Catharina et Brasilia |
| Flag Size: | 100px |
| Seal Size: | 100px |
| Pushpin Map: | Brazil |
| Pushpin Mapsize: | 250 |
| Pushpin Map Caption: | Location in Brazil |
| Subdivision Type: | Country |
| Subdivision Name: |  Brazil |
| Subdivision Type1: | Region |
| Subdivision Name1: | South |
| Subdivision Type2: | State |
| Leader Title: | Mayor |
| Leader Name: | Mário Hildebrandt (2021 - 2024) |
| Leader Party: | PODE |
| Established Title: | Founded |
| Established Date: | September 2, 1850 |
| Area Total Km2: | 519.837 |
| Population As Of: | 2020 |
| Population Footnotes: | [1] |
| Population Total: | 361,855 |
| Population Density Km2: | auto |
| Timezone: | GMT-3 |
| Coordinates: | -26.9189°N -49.0658°W |
| Elevation M: | 21 |
| Postal Code Type: | Postal code |
| Postal Code: | 89000-000 |
| Area Code: | +55 47 |
| Blank Name: | HDI (2010) |
| Blank Info: | 0.806 – very high[2] |
Blumenau (pronounced as /pt-BR/) is a city in Vale do Itajaí, Santa Catarina state, in the South Region of Brazil, 130km (80miles) from the state capital Florianópolis.
The city was founded by the German chemist and pharmacist Hermann Blumenau (1819–1899), who arrived on a boat via the Itajaí-Açu River accompanied by seventeen other Germans, and still celebrates its German heritage, including the second largest Oktoberfest in the world.
The city was founded September 2, 1850, by Hermann Bruno Otto Blumenau and seventeen other German immigrants. Later arrivals include biologist and early proponent of Darwinian Evolution, Fritz Müller.
The history of Blumenau is the result of the arrival of German immigrants who settled these fertile areas of the Atlantic Forest. Having an interest in the problems faced by European immigrants, in 1845 Hermann Blumenau reached an agreement with the Society for the Protection of German Emigrants to represent it and traveled to Brazil, aiming to create new German settlements and to check the situation of those that already existed. He traveled to Rio Grande do Sul, and then to Santa Catarina, where he visited the German colony of São Pedro de Alcântara. Aware of comments about the Itajaí Valley, he explored it in detail, in association with his compatriot Ferdinand Hackradt, since the aforementioned society was dissolved.
After taking certain precautions, Hermann Blumenau headed for Germany, to seek immigrants. On September 2, 1850, Hermann Blumenau returned to the chosen area with the seventeen initial immigrants. Despite the floods, clashes with wild animals and even with the indigenous peoples, due to the work of German immigrants willing to migrate continuously in greater numbers, the settlement prospered. Those first immigrants had a great support from the Brazilian government, who gave them land, housing, livestock, seeds, education and healthcare for a very low price and in many cases, entirely free.
On February 4, 1880, the municipality of Blumenau was created, composed of about 13,000 residents.
On April 5, 2023, a daycare in Blumenau became the scene of a deadly hatchet attack in which a 25-year-old man killed four children and wounded five others before being arrested.
, Blumenau had an estimated population of 361,855 people, with an area of 519 km2 (200 sq mi). The main ethnic origin of the city inhabitants are German and Italian.[3] The city displays many historical and cultural reminders of their heritage, such as houses and other buildings built in traditional German styles, statues, and memorials.
Blumenau, compared to other Brazilian cities, has a very high Human Development Index, 0.806 as of 2010.[4]
Source: 2022 census[5]
| Race/Skin color | Percentage | Number | |
| White | 79.0% | 285,354 | |
| Pardo (Mixed-race) | 17.1% | 61,684 | |
| Black | 3.7% | 13,272 | |
| Asian | 0.2% | 580 | |
| Indigenous | 0.1% | 367 |
Source: 2010 IBGE Census[6]
| Religion | Percentage | Number | |
| Catholics | 73.90% | 193,474 | |
| Protestants | 22.13% | 57,935 | |
| No religion | 1.22% | 3,200 | |
| Kardecists | 0.72% | 1,894 |
The city is located in a valley bisected by the Itajaí-Açu River, surrounded by hills with forests. The lower areas, including towers and tall buildings in the city center, constantly suffer from the threat of floods. Blumenau's first recorded flood took place in the dawn on September 23, 1880. The worst took place in 1983 and 1984, when the city was completely isolated for weeks. Today, Blumenau is well-prepared against such threats, but many citizens prefer to live in higher areas spread into the nearby hills and plains to avoid flooding. However, this planning could not avoid even worse flooding in late November 2008, that killed over 100 and forced thousands to evacuate.
The climate of Blumenau is considered to be subtropical, a climate of transition between the predominantly tropical climate of Brazil and the predominantly temperate climate of Argentina. Under the Köppen climate classification, the city has a warm, humid subtropical climate.
Blumenau, like the entire state of Santa Catarina, is located south of the Tropic of Capricorn; therefore it is mild in the winter with temperatures averaging 16.6 °C (61 °F) and hot and humid in the summer with high temperatures averaging around 30 °C (87 °F). On July 23, 2013 the downtown of the city got a snow-rain mix and higher neighborhoods had accumulating snow.[7]
Blumenau's main economic activity is still the textile industry, represented by large manufacturers such as Cia. Hering, Karsten and Teka.
Another area that draws attention is that of information technology; the city is the headquarters of the so-called Brazilian Silicon Valley, and many software leaders in its segment, some of whom were born in Blusoft and Instituto Gene startup incubators. Blumenau is also known as a location for the manufacturing of metallurgic, mechanical, and electrical equipment.
It has a strong economy, boosted by strong trade, service, and tourism events, with exhibitions of international importance, which are generally held in Vila Germânica (German Villa Park). Additionally, a new but rapidly expanding market is the production of craft beer, such as Eisenbahn.
Even though Blumenau is served by Quero-quero Airport, normally passengers use scheduled flights operated from Ministro Victor Konder International Airport, located in the nearby municipality of Navegantes. Gol Airlines,[8] Azul Brazilian Airlines,[9] and Latam offer for its passengers bus transfers between Navegantes and Blumenau at regular times.During Oktoberfest, Azul operates flights at the local airport.
The Blumenau's Tourism Department maintains four tour routes covering different aspects of the city. Besides these, there's the festival of the municipality. Also, the Oktoberfest of Blumenau, held every October, attracts over a million tourists every year.
Blumenau has 35 neighbourhoods:
See also: List of twin towns and sister cities in Brazil. Blumenau is twinned with:[10]
Osorno, Chile Petrópolis, Brazil
Posadas, Argentina