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Simonʼs Town Weather in May

May in Simonʼs Town typically sees daytime highs of 18°C (64°F) and nighttime lows of 15°C (59°F). Rainfall is also possible this month, so it's worth packing an umbrella.

Rainfall in Simonʼs Town in May

The climate data from previous years indicates about 12 days of rain, averaging 73 mm (2.9 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 May

In May, Simonʼs Town sees pleasant temperatures, with highs of 18°C (64°F). Nights drop to around 15°C (59°F). Conditions are often most pleasant around the middle of the day. At 15°C (59°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Simonʼs Town in May

The city usually sees around 205 hours of sunlight, indicating many sunny days — a great month for sightseeing.

For Simonʼs Town itself, January, February, March, April and December generally stand out with 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.

Select a Month

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit South Africa, check out our Simonʼs Town's climate page.

Simonʼs Town Temperature in May

Min TemperatureMin Temperature 15°C (59°F)  
Max TemperatureMax Temperature 18°C (64°F)  
Chance of RainChance of Rain 39%  
PrecipitationPrecipitation 73 mm (2.9 in)  
Rainy daysRainy days 12 days  
HumidityHumidity 81% *  
SunshineSunshine 205 hours *  
Percentage SunshinePercentage Sunshine *  
* Data from: Cape Town, South Africa (28 KM, 17 Miles).

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Simonʼs Town typically stay consistent throughout May, with daily highs averaging around 18°C (64°F). Nights are cool, with lows typically ranging from 10°C (50°F) to 12°C (54°F).

Average temperatures in May

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 May

Historical weather for Simonʼs Town in May

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 May

According to our 21 years of weather records for Simonʼs Town, the following extremes were recorded between 2004 and 2025.

  • On May 16, 2022, temperatures climbed to 33°C (91°F), marking the warmest May day on record.
  • The coldest May day was on May 25, 2023, with a maximum of 13°C (55°F).
  • The lowest overnight temperature recorded in May was 3°C (37°F) (May 24, 2006).

Best Places in South Africa in May

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 May →

Map not visible? Whoops sorry! Please refresh the page.
Legend 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 May

Pleasant temperatures in May 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. Rain gear is recommended, you can expect wet weather on multiple days. 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 May

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

Cycling
9/10
Walking
9/10
Camping
8/10
Outdoor sports
9/10

Select a Month

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit South Africa, check out our Simonʼs Town's climate page.

More climate data for Simonʼs Town