Pasadena Weather in August

August in Pasadena brings very high temperatures, with daytime highs of 35°C (95°F) and nights around 25°C (77°F). Quite a bit of rainfall is expected, around 119 mm (4.7 in), so pack an umbrella.

Rainfall in Pasadena in August

Typically, about 13 days will experience rainfall, with an average of 119 mm (4.7 in) for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Pasadena in August

If you're visiting Pasadena in August, expect highs of 35°C (95°F) and overnight lows around 25°C (77°F). It's usually most comfortable outside during the morning and later in the day. Nights stay warm at around 25°C (77°F), so light bedding and good ventilation are worth thinking about. With these average temperatures, expect occasional spikes in warmth. Wear light fabrics and stay cool by hydrating regularly.

Sunshine in Pasadena in August

Expect a lot of sunshine this month, with about 270 hours of sun. These sunny conditions add to the overall experience.

Wind Speed in Pasadena in August

Average wind speeds reach 3 m/s (6 knots) in August, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.

If you prefer dry days with pleasant temperatures, August may not be the ideal month to visit Pasadena. Our weather planner can help you explore destinations with more pleasant weather conditions.

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For a detailed overview over the year and the best time to visit the United States of America, check out our Pasadena's climate page.

Pasadena Temperature in August

Min Temperature 25°C (77°F)  

Max Temperature 35°C (95°F)  

Chance of Rain 43%  

Precipitation 119 mm (4.7 in)  

Rainy days 13 days  

Humidity 75% *  

Windspeed 3 m/s (6 knots) *  

Sunshine 270 hours *  

Percentage Sunshine 66% *  

* Data from: Houston, the United States of America (16 KM, 10 Miles).

What to Wear in Pasadena in August

Hot weather in August means keeping cool is the priority. Loose-fitting clothes in natural fabrics work best. Pack plenty of shorts, tank tops, and breathable shirts. Don't forget a hat, swimwear, and comfortable sandals. Prepare for significant rainfall with proper waterproof clothing and shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Pasadena in August

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

7/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Pasadena's climate page.

More climate data for Pasadena

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Pasadena climate overview or explore weather in the United States of America.