Grootfontein Weather in September
September in Grootfontein brings very high temperatures, with daytime highs of 32°C (90°F) and nights around 15°C (59°F). Only 4.8 mm (0.2 in) of rainfall is typical, making it a largely dry month.
Rainfall in Grootfontein in September
Historically, approximately 2 days this month are expected to have rain, averaging 4.8 mm (0.2 in). If rain does fall, it tends to be very light and barely worth getting out an umbrella for.
Temperature in Grootfontein in September
September tends to be one of the excellent months in Grootfontein, with 32°C (90°F) in the afternoon and 15°C (59°F) overnight. The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. Nights cool down to 15°C (59°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 Grootfontein in September
The month enjoys around 315 hours of sunshine, creating mostly sunny days with good weather conditions.Should you favor a climate that's both dry and comfortably warm, April, May, June, July and August typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Namibia, check out our Grootfontein's climate page.
Grootfontein Temperature in September
Min Temperature
15°C (59°F)
Max Temperature
32°C (90°F)
Chance of Rain
6%
Precipitation
4.8 mm (0.2 in)
Rainy days
2 days
Humidity
22%
Sunshine
315 hours
Percentage Sunshine
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Grootfontein typically stay consistent throughout September, with daily highs averaging around 32°C (90°F). Nights are pleasant, with lows typically ranging from 12°C (54°F) to 16°C (61°F).
Average temperatures in September
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Grootfontein in September
Browse day-by-day weather records for Grootfontein spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Grootfontein historical weather extremes in September
Our historical data for Grootfontein spans 2004 to 2025, revealing these weather extremes.
- The warmest day in September was on September 19, 2025, with a maximum of 36°C (97°F).
- Grootfontein experienced its chilliest September day on September 12, 2023, reaching only 23°C (73°F).
- Nighttime temperatures dropped to 2°C (36°F) on September 10, 2018, marking the coldest September night on record.
Best Places in Namibia in September
Find out more about the weather in Namibia and which places have the best travel conditions in this month. See all of Namibia in September →
perfect weather
pleasant
tolerable
unpleasant
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What to Wear in Grootfontein in September
Warm but pleasant conditions in Grootfontein in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Dry conditions mean you won't need to worry about rain protection. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Grootfontein in September
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 Namibia, check out our Grootfontein's climate page.
Temperature Rainfall Sunshine Humidity
See the full Grootfontein climate overview or explore weather in Namibia.
