Chevron Houston Marathon weather.
Typically 4°C on race morning; rain in 1 of the last 10 years. Race morning (07:00 to 11:00 local time) in Houston on race day in each of the last 10 years; the 2027 race is on 17 Jan 2027.
- Typical
- 4°C (39°F)
- race-morning average
- Coolest
- -1°C (30°F)
- lowest reading, 07:00–11:00
- Warmest
- 21°C (70°F)
- highest reading, 07:00–11:00
- Wet years
- 1 of 10
- rain, drizzle or worse
- Humidity
- 64%
- typical
- Wind
- 15 km/h
- typical, at 10 m
Race morning, 07:00–11:00
Year by year
| Race day | Average | Low–high | Humidity | Wind | Rain | Conditions |
|---|---|---|---|---|---|---|
| 18 Jan 2026 | 1°C (34°F) | 0°C (31°F)–4°C (39°F) | 52% | 8 km/h | 0.0 mm | Clear |
| 19 Jan 2025 | 0°C (32°F) | -1°C (31°F)–1°C (34°F) | 54% | 20 km/h | 0.0 mm | Clear |
| 14 Jan 2024 | 5°C (42°F) | 5°C (40°F)–7°C (44°F) | 67% | 17 km/h | 0.0 mm | Partly cloudy |
| 15 Jan 2023 | 16°C (60°F) | 12°C (54°F)–20°C (67°F) | 79% | 15 km/h | 0.0 mm | Overcast |
| 16 Jan 2022 | 2°C (36°F) | 1°C (33°F)–5°C (41°F) | 62% | 16 km/h | 0.0 mm | Clear |
| 17 Jan 2021 | 7°C (45°F) | 5°C (40°F)–12°C (54°F) | 61% | 8 km/h | 0.0 mm | Clear |
| 19 Jan 2020 | 8°C (46°F) | 7°C (45°F)–9°C (48°F) | 40% | 23 km/h | 0.0 mm | Clear |
| 20 Jan 2019 | 1°C (34°F) | 0°C (32°F)–3°C (38°F) | 66% | 16 km/h | 0.0 mm | Clear |
| 14 Jan 2018 | 1°C (34°F) | 0°C (31°F)–4°C (40°F) | 67% | 13 km/h | 0.0 mm | Clear |
| 15 Jan 2017 | 19°C (65°F) | 18°C (64°F)–21°C (69°F) | 93% | 14 km/h | 1.1 mm | Light drizzle |
Each row is the race's date that year where we know it, else the same weekday nearest its usual date. Temperatures and humidity are averaged over 07:00 to 11:00 local time, rain is the total over those hours, and conditions are the commonest over the morning. The marathon starts at 07:00.
Kit and pacing
What it means
Dress for the cold start
Mornings are usually around 4°C. Gloves, a hat and an old top you can throw away at the start are worth packing, and warm up for longer than usual: cold muscles take a few kilometers to get going.
Have a warm-day plan
In the warmest of these years it reached 21°C by late morning. Decide in advance how much you'd slow down if the forecast is warm, rather than on the course.
The weather varies a lot
Race mornings here have ranged by 19°C from year to year. Pack for both, and settle your kit and pacing from the forecast in the last few days.
General guidance from past years' numbers. Check the forecast in race week.
Weather data by Open-Meteo.com, from its historical weather archive (CC BY 4.0).