Monthly climate guide
Dammam weather in September
September in Dammam is typically very hot, with average daytime highs around 40°C (104°F) and night-time lows near 29°C (85°F). The month usually brings about 0 mm of rain (very dry) and is mostly sunny. Daytime highs are 2°C cooler than August and 5°C warmer than October.
What stands out in September
- Nights stay warm, rarely below 29°C — air-conditioning helps.
- September brings early autumn to Dammam.
- It cools down fast from here: October is about 5°C cooler.
- Skies are at their clearest this time of year.
Avg high
40°C
104°F
Avg low
29°C
85°F
Rainfall
0 mm
very dry
Humidity
48%
relative
Sky
19%
cloud · mostly sunny
Dammam weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 22°C / 71°F | 13°C / 56°F | 12 mm | 60% | 48% |
| February | 23°C / 73°F | 14°C / 57°F | 4 mm | 60% | 49% |
| March | 27°C / 80°F | 17°C / 62°F | 5 mm | 55% | 51% |
| April | 32°C / 90°F | 21°C / 71°F | 6 mm | 48% | 56% |
| May | 38°C / 100°F | 26°C / 80°F | 0 mm | 41% | 40% |
| June | 41°C / 105°F | 30°C / 85°F | 0 mm | 36% | 21% |
| July | 42°C / 108°F | 31°C / 88°F | 0 mm | 40% | 32% |
| August | 42°C / 108°F | 31°C / 88°F | 0 mm | 44% | 29% |
| September | 40°C / 104°F | 29°C / 85°F | 0 mm | 48% | 19% |
| October | 36°C / 96°F | 26°C / 79°F | 2 mm | 52% | 25% |
| November | 28°C / 83°F | 21°C / 70°F | 18 mm | 58% | 48% |
| December | 23°C / 74°F | 15°C / 60°F | 5 mm | 62% | 45% |
What to pack for September
- Light, breathable clothing (cotton or linen)
- A sun hat and high-SPF sunscreen
- A refillable water bottle
- An extra layer — evenings are noticeably cooler than afternoons
- Sunglasses
Is September a good time to visit Dammam?
Compare the months in the chart above to find your ideal window.
Best time to visit Dammam →Other Saudi Arabia cities in September
Cite or embed this data
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Dammam weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/saudi-arabia/dammam/september
<a href="https://weathercompare.eu/weather/saudi-arabia/dammam/september">Dammam weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/saudi-arabia/dammam" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Dammam weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/saudi-arabia/dammam/september">Dammam weather in September</a> – WeatherCompare</p>
Dammam in September: quick answers
Is September a good time to visit Dammam?
It can be, if you like heat: September highs in Dammam are around 40°C. Good for the beach; plan sightseeing for early morning and evening.
How warm is Dammam in September?
Average highs are about 40°C (104°F) and average lows about 29°C (85°F), based on 10 years of daily data.
Does it rain a lot in Dammam in September?
Dammam typically gets around 0 mm of rain in September — very dry.
Figures are long-term averages for the area around Dammam (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.