Bath Half Marathon weather.

Typically 8°C on race morning; rain in 4 of the last 10 years. Race morning (07:00 to 11:00 local time) in Bath on race day in each of the last 10 years; the 2027 race is on 14 Mar 2027.

Typical
8°C (46°F)
race-morning average
Coolest
-2°C (28°F)
lowest reading, 07:00–11:00
Warmest
12°C (54°F)
highest reading, 07:00–11:00
Wet years
4 of 10
rain, drizzle or worse
Humidity
84%
typical
Wind
22 km/h
typical, at 10 m

Race morning, 07:00–11:00

Year by year

Race dayAverageLow–highHumidityWindRainConditions
15 Mar 20267°C (45°F)5°C (40°F)–10°C (49°F)80%22 km/h0.0 mmOvercast
16 Mar 20252°C (36°F)-2°C (29°F)–6°C (42°F)80%12 km/h0.0 mmClear
17 Mar 202411°C (52°F)10°C (50°F)–12°C (54°F)92%17 km/h3.0 mmLight drizzle
12 Mar 20239°C (48°F)8°C (47°F)–10°C (51°F)91%23 km/h0.2 mmOvercast
13 Mar 20228°C (47°F)7°C (44°F)–10°C (49°F)80%27 km/h0.2 mmOvercast
14 Mar 20216°C (44°F)5°C (40°F)–8°C (47°F)75%25 km/h0.0 mmOvercast
15 Mar 20208°C (46°F)6°C (43°F)–9°C (49°F)91%23 km/h6.7 mmLight rain
17 Mar 20195°C (41°F)3°C (37°F)–7°C (44°F)71%24 km/h0.0 mmClear
11 Mar 20188°C (47°F)7°C (44°F)–11°C (51°F)87%17 km/h1.2 mmOvercast
12 Mar 20178°C (47°F)8°C (46°F)–8°C (47°F)96%14 km/h3.1 mmDrizzle

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.

Kit and pacing

What it means

  • Good racing weather

    Around 8°C is close to ideal for a fast time. Shorts and a vest are enough once you're moving; bring a throwaway layer for the wait in the start pen.

  • It can be cold

    The coolest morning here dropped to -2°C. Pack gloves and a throwaway layer even if the forecast looks kind.

  • Be ready for rain

    It rained on 4 of the last 10 race mornings. A bin bag or cheap poncho keeps you dry in the start pen; anti-chafe balm and socks that don't hold water help over the distance, and a cap keeps rain out of your eyes.

  • Expect wind

    Wind was 22 km/h on a typical morning here. Run in a group on exposed stretches, and aim for even effort rather than even splits: time lost into a headwind isn't all won back with it behind you.

  • The weather varies a lot

    Race mornings here have ranged by 9°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.

The course 2027 dates and entry

Weather data by Open-Meteo.com, from its historical weather archive (CC BY 4.0).

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