Arroyo Grande
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Arroyo Grande Weather in September

In Arroyo Grande, September brings high daytime temperatures around 23°C (73°F), with nights cooling to 12°C (54°F). Minimal rainfall is to be expected.

Rainfall in Arroyo Grande in September

Based on our climate data of the past 30 years, about 0 days of rain are anticipated, with 0.5 mm (0.02 in) on average. On the rare occasion it rains this month, it usually amounts to very little.

Temperature in Arroyo Grande in September

Weather in Arroyo Grande is at its excellent in September. Highs reach 23°C (73°F), while nights settle around 12°C (54°F). This kind of day-to-night contrast is typical for this time of year. With overnight lows of 12°C (54°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep. On average, it is the month with the highest temperature of the year.

Sunshine in Arroyo Grande in September

Expect sunny days throughout the month, with an estimated 270 hours of sunshine. This makes it a pleasant time to visit Arroyo Grande.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. March, April, May, June, July, August, September, October and November typically offer the best weather for Arroyo Grande.

Arroyo Grande Temperature in September

Min Temperature
12°C (54°F)
Max Temperature
23°C (73°F)
Chance of Rain
1%
Precipitation
0.5 mm (0.02 in)
Rainy days
0 days
Sunshine
270 hours *
Percentage Sunshine
*
* Data from: Paso Robles, the United States of America (57 KM, 35 Miles).

Arroyo Grande Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Arroyo Grande - and find the best time to visit.

Best Places in the United States of America in September

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Arroyo Grande in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Arroyo Grande in September

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

  • Swimming
    10/10
  • Cycling
    10/10
  • Walking
    10/10
  • Barbeque
    9/10
  • Camping
    10/10
  • Outdoor sports
    10/10

Arroyo Grande 3-Day Forecast

More climate data for Arroyo Grande

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.