Grootfontein
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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.

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

Grootfontein Weather by Month

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

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 records 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 2026, 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
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 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.

  • Swimming
    10/10
  • Cycling
    8/10
  • Walking
    8/10
  • Barbeque
    10/10
  • Camping
    10/10
  • Outdoor sports
    8/10

Grootfontein 3-Day Forecast

More climate data for Grootfontein

Popular in September

Where to go in September - average daytime high across popular destinations.

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