Like all the towns in the Otavi Triangle, Grootfontein is green in summer but drier in winter. In spring,
jacaranda and
flamboyant trees bloom in profusion. The town has an old German
Schutztruppe fortress from the year 1896, which today houses a
museum that expounds on the local history. Namibia is a
dolomite country and the
carbonate deposits in the upper parts of the mine have yielded interesting
fossils of
simian or
pongoid creatures that lived millions of years before modern humans evolved. Twenty-four kilometres west of Grootfontein lies the huge
Hoba meteorite. At more than 60 tons, it is the largest known
meteorite on Earth, as well as the largest naturally occurring mass of iron known to exist on the planet's surface.
Climate Grootfontein receives an annual average rainfall of , with a high of in the 2010/2011 rainy season, and a low of during the 2010s drought in 2018/19. The town has a hot
semi arid climate (Koppen:BSh). {{Weather box {{cite web ==Politics==