Monthly climate guide
Monclova weather in September
September in Monclova is typically very hot, with average daytime highs around 33°C (91°F) and night-time lows near 21°C (70°F). The month usually brings about 89 mm of rain (some rain) and is a mix of sun and cloud. Daytime highs are 3°C cooler than August and 2°C warmer than October.
What stands out in September
- Rain is above Monclova's usual level, by about 175%.
- In Monclova, September is early autumn.
- Just 170 km apart, but Monclova runs about 5°C warmer than Saltillo this month.
- Expect more cloud than at any other time of year.
It's usually the wettest month of the year.
Avg high
33°C
91°F
Avg low
21°C
70°F
Rainfall
89 mm
some rain
Humidity
61%
relative
Sky
47%
cloud · a mix of sun and cloud
Monclova weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 21°C / 70°F | 6°C / 43°F | 10 mm | 54% | 45% |
| February | 25°C / 78°F | 9°C / 48°F | 7 mm | 48% | 41% |
| March | 29°C / 84°F | 13°C / 55°F | 24 mm | 46% | 43% |
| April | 33°C / 92°F | 16°C / 62°F | 19 mm | 41% | 39% |
| May | 35°C / 95°F | 20°C / 68°F | 46 mm | 50% | 40% |
| June | 36°C / 97°F | 22°C / 72°F | 52 mm | 53% | 38% |
| July | 36°C / 96°F | 23°C / 73°F | 41 mm | 53% | 44% |
| August | 36°C / 98°F | 23°C / 74°F | 31 mm | 50% | 36% |
| September | 33°C / 91°F | 21°C / 70°F | 89 mm | 61% | 47% |
| October | 31°C / 87°F | 16°C / 61°F | 24 mm | 59% | 30% |
| November | 25°C / 77°F | 11°C / 52°F | 27 mm | 60% | 40% |
| December | 22°C / 72°F | 8°C / 46°F | 18 mm | 56% | 43% |
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
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is September a good time to visit Monclova?
Compare the months in the chart above to find your ideal window.
Best time to visit Monclova →Other Mexico cities in September
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Monclova weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/mexico/monclova/september
<a href="https://weathercompare.eu/weather/mexico/monclova/september">Monclova weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/mexico/monclova" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Monclova weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/mexico/monclova/september">Monclova weather in September</a> – WeatherCompare</p>
Monclova in September: quick answers
Is September a good time to visit Monclova?
It can be, if you like heat: September highs in Monclova are around 33°C. Good for the beach; plan sightseeing for early morning and evening.
How warm is Monclova in September?
Average highs are about 33°C (91°F) and average lows about 21°C (70°F), based on 10 years of daily data.
Does it rain a lot in Monclova in September?
Monclova typically gets around 89 mm of rain in September — some rain. It's usually the wettest month of the year.
Figures are long-term averages for the area around Monclova (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.