Grahamstown
September
Weather in Grahamstown for September 2025
Your guide to Grahamstown weather in September - trends and predictions
In general, the average temperature in Grahamstown at the beginning of September is 18.9 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 17.7 °C by the end of September.
The climate of Grahamstown in September is notably wet, with an average of 12 rainy days, and a total of 62.8 mm of precipitation.
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Temperatures
Rain 🌧️
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18
Dry days
12
Rainy days
0
Snow days
18°/14°
Temperatures
39 km/h
Avg max wind
73 %
Avg humidity
Grahamstown in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  21° | 2 19° | 3  26° | 4  18° | 5 16° | 6 16° | 7 16° |
| 8 15° | 9 14° | 10 16° | 11 17° | 12 19° | 13 18° | 14 18° |
| 15 18° | 16 17° | 17 19° | 18  17° | 19 15° | 20 16° | 21 17° |
| 22 18° | 23 19° | 24 23° | 25  19° | 26 17° | 27 17° | 28 17° |
| 29 16° | 30 15° |
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Temperatures trend during September in Grahamstown
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Sunny | 21° /16° | 0 mm | 7 | |
| 2 Sept. | Sunny | 19° /15° | 0 mm | 6 | |
| 3 Sept. | Partly cloudy | 26° /17° | 0 mm | 8 | |
| 4 Sept. | Patchy rain possible | 18° /16° | 0.1 mm | 5 | |
| 5 Sept. | Light rain shower | 16° /14° | 4.1 mm | 5 | |
| 6 Sept. | Sunny | 16° /13° | 0.2 mm | 6 | |
| 7 Sept. | Patchy rain possible | 16° /13° | 0.2 mm | 5 | |
| 8 Sept. | Light rain shower | 15° /12° | 9.2 mm | 5 | |
| 9 Sept. | Light rain shower | 14° /13° | 2.4 mm | 4 | |
| 10 Sept. | Sunny | 16° /11° | 0.2 mm | 6 | |
| 11 Sept. | Light rain shower | 17° /15° | 3.2 mm | 5 | |
| 12 Sept. | Light rain shower | 19° /17° | 5.6 mm | 5 | |
| 13 Sept. | Sunny | 18° /16° | 0.3 mm | 6 | |
| 14 Sept. | Patchy rain possible | 18° /15° | 0.6 mm | 5 | |
| 15 Sept. | Patchy rain possible | 18° /15° | 0.2 mm | 5 | |
| 16 Sept. | Patchy rain possible | 17° /14° | 0.1 mm | 5 | |
| 17 Sept. | Patchy rain possible | 19° /16° | 0.5 mm | 5 | |
| 18 Sept. | Cloudy | 17° /14° | 0.1 mm | 5 | |
| 19 Sept. | Light rain shower | 15° /13° | 8.1 mm | 5 | |
| 20 Sept. | Patchy rain possible | 16° /13° | 9.9 mm | 5 | |
| 21 Sept. | Patchy rain possible | 17° /14° | 1.8 mm | 5 | |
| 22 Sept. | Patchy rain possible | 18° /15° | 0.2 mm | 5 | |
| 23 Sept. | Sunny | 19° /15° | 0 mm | 6 | |
| 24 Sept. | Patchy rain possible | 23° /17° | 0.4 mm | 6 | |
| 25 Sept. | Overcast | 19° /17° | 0 mm | 5 | |
| 26 Sept. | Light rain shower | 17° /15° | 3.5 mm | 5 | |
| 27 Sept. | Sunny | 17° /14° | 0 mm | 6 | |
| 28 Sept. | Patchy rain possible | 17° /14° | 5 mm | 5 | |
| 29 Sept. | Light rain shower | 16° /13° | 4.6 mm | 5 | |
| 30 Sept. | Light rain shower | 15° /12° | 2 mm | 5 | |
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Important Notice
Our weather forecast for Grahamstown in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Grahamstown forecast closer to your planned date for the most up-to-date weather information.
Grahamstown in September - FAQ
What are the expected maximum and minimum temperatures in Grahamstown during September?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Grahamstown during September?
Moderate rainfall is anticipated in Grahamstown during September, with a total of 62.8 mm spread over approximately 12 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Grahamstown during September?
The average wind speed in Grahamstown during September is 39 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Grahamstown
Explore the daily rainfall trends and prepare for Grahamstowns September weather 💧
UV exposure in Grahamstown during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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