Constantia Weather in January
Thinking of visiting Constantia in January? Expect high temperatures reaching 23°C (73°F) during the day, dropping to 18°C (64°F) at night, with some rainfall likely.
Rainfall in Constantia in January
On average, there are about 5 days with rain during this month, averaging 17 mm (0.7 in). When rain does fall, showers tend to be light and brief. Most days will be dry.
Temperature in Constantia in January
Constantia in January is worth a visit. The temperature is perfect, with 23°C (73°F) during the day and 18°C (64°F) at night. This kind of day-to-night contrast is typical for this time of year. Nights cool down to 18°C (64°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Constantia in January
The days are predominantly sunny, with an estimated total of around 338 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.
Wind Speed in Constantia in January
Wind speeds average 6 m/s (12 knots) during January. At this speed, expect strong winds that make large branches move and create some resistance when walking. Since this is an average, some days have fresh winds while others have strong breezes that can make umbrellas tricky to control.
Average water temperature in January
At 18°C (64°F), the water is getting there — comfortable enough for most swimmers, though those used to warmer seas may still find it a touch cool.If your ideal day consists of dry skies and pleasant temperatures, January, February, March, April, November and December typically offer the best circumstances for Constantia.
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 Constantia's climate page.
Constantia Temperature in January
Min Temperature
18°C (64°F)
Max Temperature
23°C (73°F)
Water Temperature
18°C (64°F) *
Chance of Rain
16%
Precipitation
17 mm (0.7 in)
Rainy days
5 days
Humidity
71% *
Windspeed
6 m/s (12 knots) *
Sunshine
338 hours *
Percentage Sunshine
*
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Constantia typically stay consistent throughout January, with daily highs averaging around 23°C (73°F). Nights are pleasant, with lows around 17°C (63°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Constantia in January
Browse day-by-day weather records for Constantia spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Constantia historical weather extremes in January
The extremes listed below come from historical weather data collected in Constantia from 1976 through 2025.
- Constantia recorded its highest January temperature of 40°C (104°F) on January 19, 2000.
- The coldest January day was on January 13, 2001, with a maximum of 18°C (64°F).
- The lowest overnight temperature recorded in January was 8°C (46°F) (January 2, 2001).
Best Places in South Africa in January
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 January →
perfect weather
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tolerable
unpleasant
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What to Wear in Constantia in January
Pleasant temperatures in January 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. With minimal rainfall expected, you can leave the rain gear at home. With water temperatures around 18°C (64°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Constantia in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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 Constantia's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Constantia climate overview or explore weather in South Africa.
