SantʼAntonio Weather in September

September in SantʼAntonio sees daytime temperatures around 18°C (64°F) and lows of 10°C (50°F) at night. With around 163 mm (6.4 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in SantʼAntonio in September

You can typically expect 13 days of rain this month, averaging around 163 mm (6.4 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in SantʼAntonio in September

September in SantʼAntonio sees highs of 18°C (64°F) and lows of 10°C (50°F) overnight. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With overnight lows of 10°C (50°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in SantʼAntonio in September

The month enjoys around 198 hours of sunshine, creating mostly sunny days with good weather conditions.

For SantʼAntonio itself, June, July and August generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.