Harvey Weather in September

September in Harvey sees daytime temperatures around 31°C (88°F) and lows of 23°C (73°F) at night. With around 160 mm (6.3 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Harvey in September

Expect around 14 days of rain based on historical data, with 160 mm (6.3 in) average. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Harvey in September

In September, Harvey sees very high temperatures, with highs of 31°C (88°F). Nights drop to around 23°C (73°F). Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. Nights are warm at 23°C (73°F). It's worth making sure your accommodation has decent ventilation or air conditioning.

Sunshine in Harvey in September

There are approximately 227 hours of sunshine this month, resulting in mostly clear days.

Wind Speed in Harvey in September

Wind speeds average 3 m/s (6 knots) during September. At this speed, light breezes keep leaves and small twigs in gentle motion while the wind also provides natural cooling. Since this is an average, some days are more tranquil while others have more persistent light winds that are more noticeable.

Average water temperature in September

The water temperature is 28°C (82°F), which most people find very comfortable. A good month for swimming and water sports.

Should you favor a climate that's both dry and comfortably warm, November typically offers the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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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 Harvey's climate page.

Harvey Temperature in September

Min Temperature 23°C (73°F)  

Max Temperature 31°C (88°F)  

Water Temperature 28°C (82°F) *  

Chance of Rain 46%  

Precipitation 160 mm (6.3 in)  

Rainy days 14 days  

Humidity 78% *  

Windspeed 3 m/s (6 knots) *  

Sunshine 227 hours *  

Percentage Sunshine 62% *  

* Data from: New Orleans, the United States of America (18 KM, 11 Miles).

What to Wear in Harvey in September

Warm but pleasant conditions in Harvey in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. With water temperatures around 28°C (82°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Harvey in September

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

Swimming

8/10

Cycling

7/10

Walking

7/10

Camping

6/10

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 Harvey's climate page.

More climate data for Harvey

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

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