Vestmannaeyjar Arpt climate by month
Averages and records for each calendar month at Vestmannaeyjar Arpt, Iceland, from 1949 to 2025. The warmest month is July, averaging 12.1°C; the coolest is January at 3.5°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 3.5°C | −0.5°C | 9.2°C6 January 2002 | −15.7°C15 January 1969 | 62 / 71 |
| February | 3.8°C | −0.2°C | 10.0°C16 February 1955 | −16.3°C6 February 1969 | 61 / 71 |
| March | 4.1°C | 0.1°C | 9.0°C31 March 1955 | −14.9°C8 March 1969 | 62 / 72 |
| April | 5.7°C | 1.8°C | 11.6°C29 April 2005 | −16.9°C1 April 1968 | 62 / 72 |
| May | 8.2°C | 4.3°C | 16.5°C9 May 2006 | −7.1°C1 May 1979 | 62 / 71 |
| June | 10.4°C | 6.8°C | 19.3°C30 June 1999 | −1.4°C7 June 1997 | 62 / 71 |
| July | 12.1°C | 8.5°C | 21.6°C30 July 2008 | 3.7°C13 July 1985 | 62 / 71 |
| August | 12.0°C | 8.6°C | 20.3°C12 August 2004 | 2.6°C27 August 1985 | 62 / 71 |
| September | 9.7°C | 6.5°C | 15.4°C30 September 1958 | −2.6°C26 September 1954 | 63 / 70 |
| October | 7.0°C | 3.8°C | 13.4°C1 October 2001 | −7.5°C17 October 1967 | 62 / 70 |
| November | 4.9°C | 1.2°C | 10.5°C5 November 2006 | −10.7°C17 November 1971 | 60 / 70 |
| December | 3.8°C | −0.3°C | 10.0°C15 December 1997 | −15.3°C19 December 1973 | 63 / 70 |
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 60 to 63 years each.
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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.