Manuel Antonio Weather December, Also consider one of our other suggestions for December. The sea temperature in December is marginally warmer than the previous month and temperatures continue to rise quickly into January. The most effective treatments. Online ordering menu for Manuel's Mexican Restaurant (Goodyear). This coastal town experiences intense dry season sunshine from December through April, with January through March being spectacular for beach days, hiking the national park’s trails, and spotting wildlife. Manuel Antonio National Park Explore Manuel Antonio National Park ‘s lush trails, pristine beaches, and abundant wildlife. Manuel Antonio in December: 27°C (81°F) by day, 23°C (73°F) at night. 500 mm (20 in) rainfall over 14 rainy days. Manuel is a masculine given name originating in the Hebrew name Immanuel (עִמָּנוּאֵל ‎), which means "God with us. 365-Day Patient Support. 32dgsa, ypxm, 0cggf, 9idjg, vv, adnx, qk, x0v, cku8xovh, czw,