J6-A Sea weather by month
Averages and records for each calendar month at J6-A Sea, Netherlands, from 2009 to 2026. The warmest month is August, averaging 18.1°C; the coolest is February at 6.8°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 7.2°C | 4.6°C | 11.5°C9 January 2015 | −0.8°C18 January 2013 | 17 / 17 |
| February | 6.8°C | 4.4°C | 11.8°C26 February 2019 | −4.3°C28 February 2018 | 17 / 17 |
| March | 7.4°C | 5.1°C | 12.8°C31 March 2021 | −3.7°C1 March 2018 | 17 / 18 |
| April | 9.1°C | 6.6°C | 17.0°C20 April 2011 | −1.1°C5 April 2021 | 18 / 18 |
| May | 11.8°C | 9.4°C | 19.4°C7 May 2016 | 2.8°C6 May 2021 | 17 / 17 |
| June | 14.9°C | 12.6°C | 24.1°C27 June 2026 | 8.0°C5 June 2020 | 17 / 17 |
| July | 17.2°C | 14.9°C | 27.0°C27 July 2018 | 10.4°C3 July 2024 | 17 / 17 |
| August | 18.1°C | 15.7°C | 25.1°C13 August 2022 | 9.3°C29 August 2010 | 17 / 17 |
| September | 17.0°C | 14.5°C | 23.9°C14 September 2016 | 8.3°C16 September 2013 | 15 / 16 |
| October | 14.5°C | 12.0°C | 19.2°C2 October 2011 | 5.6°C28 October 2018 | 16 / 16 |
| November | 11.4°C | 8.7°C | 16.2°C1 November 2022 | −0.6°C30 November 2010 | 16 / 17 |
| December | 8.9°C | 6.4°C | 12.8°C6 December 2015 | −1.5°C17 December 2010 | 16 / 17 |
Years shows the number behind the average high, then the number holding a record for that month. They differ because a year contributes an average only when the month has at least 25 days of readings, while a single reading is enough to set a record. The average low is withheld on the same 25-day rule and is counted separately again; it is shown as a dash where the archive cannot support it. Across the twelve months here the averages rest on 15 to 18 years each.
See what J6-A Sea is doing right now
Climate at nearby stations
The closest stations with twelve months of archive of their own, nearest first.
Every figure on this page is computed from NOAA GHCN-Daily observations stored per station, per year, per month. Nothing is modelled, interpolated or estimated, and a month the archive never covered is left out rather than filled in. A station appears here only once all twelve months carry an average from at least 10 years. See how this is built.