A mild and relatively temperate summer gives way to a scorching September season opener for the art galleries of Brooklyn.

The Williamsburg Art Walk “Every 2:ND” Friday lands on September 9th and there is plenty to see. Causey Contemporary (92 Wythe Ave.) offers “Jordan Eagles: Hemoglyphs”, a solo exhibition featuring artwork constructed primarily around encased or suspended animal blood. At Front Room Gallery (147 Roebling St.) see animals in a somewhat more constituted state in carnal, chromatically vivid paintings from Emily Roz’s solo exhibition “The Rutting Season”. Camel Art Space (722 Metropolitan Ave.) and their resident Artist Collective play host to another group, the Round Robin Artist Collective. Consisting of 13 Brooklyn based artists, the Round Robin Collective presents “Live/Work Space”, an assortment of collaborative work that examines the relationship of artists to their environments.

In Bushwick on the same date, Sep. 9th, see Microscope Gallery’s (4 Charles Place) “Independence Returns”, a group show featuring artists who have shown or screened at the gallery during it’s previous inaugural year.

On Saturday, Sep. 10th don’t miss “Before Shifting Into Blackness” at the remarkable Rawson Projects (339 Bedford Ave.). This solo exhibition presents the abstract constructions of Davina Semo who, through a deft combination of unlikely materials (reinforced concrete, enamel paint, safety glass) and poetic titles (ex. “In Bleak Times there is a Boom in Doom”), creates visually arresting work that is the aesthetic equivalent of being punched in the teeth.

“30: A Brooklyn Salon” at BRIC Rotunda Gallery (33 Clinton St.) in Brooklyn Heights submits a collection of 50 or so Brooklyn artists from the gallery’s illustrious thirty year history, celebrating it as Brooklyn’s oldest continuously operating contemporary art space. Opening on Sep. 14th, “30” is curated by the consummate Elizabeth Ferrer and is sure to please.

On Sep. 16th Muriel Guepin Gallery (47 Bergen St.) in Boerum Hill offers a “New Group Show” which includes the virile, painterly riffs on Abstract Expressionism of James Greco and the sensitive, nimble drawings of Robert Walden, which read like aerial road maps of the synaptic centers of thought.

A few doors down and one day later, catch “Hermaphrodite” at Invisible Dog Art Center (51 Bergen St.), a group show, curated by Nikita Vishnevsky, that includes the talents of artists Lance Lankford and Natalie Labriola.

Also on Sep. 17th the Brooklyn Waterfront Artists Coalition (499 Van Brunt St.) in Red Hook presents it’s fall group art show “Tales of Breukelen” in which over 1200 works from over 300 artists will be shown in their expansive warehouse space.

Lastly, Sep 23rd opens “Sanford Biggers: Sweet Funk – An Introspective” at Brooklyn Museum (200 Eastern Parkway) which collects 13 pieces from Biggers that conflate African American Ethnography and African Diaspora History with music and Buddhist spirituality. Biggers first museum presentation in New York is augmented by a panel conversation at the museum between celebrity chef Marcus Samuelsson, Sanford Biggers and actor/recording artist Mos Def the following month on Oct 13th.

—Enrico Gomez