Simonʼs Town
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Simonʼs Town Weather in September

During September, Simonʼs Town experiences moderate daytime temperatures of 17°C (63°F) and cooler nights around 13°C (55°F). Some rainfall is typical during this period.

Rainfall in Simonʼs Town in September

You can expect rain on roughly 11 days based on historical data, averaging 56 mm (2.2 in) for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Simonʼs Town in September

September in Simonʼs Town brings moderate temperatures, with highs of 17°C (63°F) and nights around 13°C (55°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With lows of 13°C (55°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Simonʼs Town in September

There are approximately 225 hours of sunshine this month, resulting in mostly clear days.

If you prefer enjoying temperate temperatures and rain-free days, January, February, March, April and December typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

Simonʼs Town Temperature in September

Min Temperature
13°C (55°F)
Max Temperature
17°C (63°F)
Chance of Rain
36%
Precipitation
56 mm (2.2 in)
Rainy days
11 days
Humidity
77% *
Sunshine
225 hours *
Percentage Sunshine
*
* Data from: Cape Town, South Africa (28 KM, 17 Miles).

Simonʼs Town Weather by Month

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

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Simonʼs Town typically stay consistent throughout September, with daily highs averaging around 17°C (63°F). Nights are cool, with lows around 10°C (50°F).

Average temperatures in September

Daily Historical Precipitation

50-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in September

Historical weather records for Simonʼs Town in September

Browse day-by-day weather records for Simonʼs Town spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Simonʼs Town historical weather extremes in September

Based on weather observations in Simonʼs Town between 1976 and 2026, these are the recorded extremes during September.

  • The hottest September day on record in Simonʼs Town reached 33°C (91°F) (September 12, 1997).
  • On September 1, 1979, Simonʼs Town saw its coldest September day with temperatures maxing out at 11°C (52°F).
  • The coldest night in September in Simonʼs Town was on September 1, 1990, with a minimum of 2°C (36°F).

Best Places in South Africa in September

Find out more about the weather in South Africa and which places have the best travel conditions in this month. See all of South Africa 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 Simonʼs Town in September

For Simonʼs Town in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Simonʼs Town in September

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

  • Cycling
    6/10
  • Walking
    6/10
  • Camping
    8/10
  • Outdoor sports
    10/10

Simonʼs Town 3-Day Forecast

More climate data for Simonʼs Town

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.