Start Bay wave buoy daily averages for Jul 2025
Daily averages from the Start Bay wave buoy for Jul 2025, including available wave height, period, direction, wind and sea temperature data.
Period Summary
AI-generated summary. Hog SaysIn July 2025, Start Bay recorded 1,478 wave and water-temperature observations across 32 observed days. Average wave height was 1.1 ft, ranging from 0.3 to 5.9 ft, while the average wave period was 4 seconds, ranging from 2 to 8 seconds. Average water temperature was 17.1°C, with wind measurements unavailable.
Generated only from the observations and comparisons shown on this page.
Average Wave Height
Average Wave period
Average Wave Direction
Average Water temperature
Compared With Previous Julys
Historical baseline from 9,179 observations across 11 years.
- Wave Height
- 1.1ft
- 0.2ft below average
- Historical average 1.3ft
- Wave Period
- 4s
- 1.7s below average
- Historical average 5.7s
- Water Temperature
- 17.1°C
- 1°C above average
- Historical average 16.1°C
Chart showing grouped wave observations for Start Bay. Use the table on this page for a text version of the same measurements. To open hourly observations, use a linked day name in the table.
Sorry, there is no wave data for Tue, Jul 1, 2025
About Start Bay wave buoy
Start Bay is a Datawell Directional WaveRider station off the south Devon coast. First deployed in April 2007, it measures waves entering the bay between Start Point and the Dartmouth approaches. Available observations include wave height, period and direction, sea temperature and calculated wave power.