San Diego Weather in September

What's the weather like in San Diego, Philippines in September 2018?

The climate in San Diego during September can be summarized as hot, humid and very wet.

September is in the fall / autumn in San Diego and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 23°C (74°F) is normal.

San Diego weather averages (imperial / metric)
Daytime temperature 31.2°C 88.2°F
Nightly temperature 23.4°C 74.1°F
Average temperature 27.3°C 81.1°F
Daily sunshine 5.9 hrs
Avg rainfall 299 mm 11.8 ins
Rainy days 19 days
Sea temperature 29.3°C 84.8°F
Humidity 84%
Windspeed 6.5kph 4 mph

On average September is the 4th wettest month of the year in San Diego with around 299mm 11.8 inches of rain making it a very wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.9 hours of sunshine per day.

September temperatures in San Diego

September rainfall

September hourly sunshine

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in September 2018.

Other monthly averages

San Diego weather stats

San Diego weather statistics
Hottest month: May 32.9°C 91.2°F
Driest month: March 71mm 2.8ins
Sunniest month: April 9hrs
Coldest month: January 28.3°C 82.9°F
Wettest month: October 406mm 16ins
Map showing location of San Diego (14.1872, 121.4867)

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