Port Lavaca, United States — 14-Day Weather Forecast

The 7-day forecast for Port Lavaca is generally reliable for temperature trends and major weather patterns. Days 1–3 are most accurate, while days 8–14 should be used for general planning only.

Forecast figures are fetched when you load or refresh this page (or when you return via navigation). The page does not poll for new data in the background while you stay on the same tab.

The rain percentage shows the probability of precipitation occurring at any point during that day. A 30% chance means there's roughly a 1-in-3 chance of rain.

Port Lavaca averages about 114 mm of rainfall over 13 rainy days in June. Check the precipitation chart above for the latest day-by-day outlook.

Snow is rare or absent in Port Lavaca. Winter temperatures typically stay above freezing, so precipitation falls as rain rather than snow.

Wind speeds in Port Lavaca average up to 21 km/h (13 mph) in June. Check the wind tab in the interactive chart above for hourly and daily wind forecasts.

The average UV index in Port Lavaca during June is 9. This is high — wear sunscreen and limit midday sun exposure.

UV 1–2 is low risk. UV 3–5 is moderate — wear sunscreen. UV 6–7 is high — limit midday sun exposure. UV 8+ is very high — seek shade and wear protective clothing.

Average humidity in Port Lavaca during June is around 79%. This is quite humid — expect muggy conditions, especially in the afternoon.

The 'feels like' temperature accounts for wind chill and humidity to reflect how the air actually feels on your skin. In cold, windy conditions it will be lower than the actual temperature; in hot, humid conditions it will be higher.