Castelo Branco

What is the climate like in Castelo Branco?

The best time to visit Castelo Branco is typically May – September, with trip comfort peaking in July (9.5/10). Castelo Branco is warmest in August, when daily highs average 93°F (34°C), and coolest in January, when lows fall to about 41°F (5°C). The wettest month is typically March and the driest is August; the year sees roughly 23 in (589 mm) of precipitation.

• Best time to visitMay – September — comfort peaks in July (9.5/10)
• Warmest monthAugust — average high 93°F (34°C)
• Coolest monthJanuary — average low 41°F (5°C)
• Wettest monthMarch (3.3 in (85 mm))
• Driest monthAugust (0.1 in (2 mm))
• Annual precipitation23 in (589 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromCastelo Branco, 1 km away (1990-2026)