Earliest and Latest Days of 30° C in Oslo

This is a list of the earliest and latest days in the year with a high temperature of at least 30 °C in Oslo, Norway history. It is based on NOAA data from the years 1937–2024.

Also see:

Earliest 30 degree day in Oslo?

The earliest in the year that Oslo, Norway had a high temperature of at least 30 °C is May 30 which happened in 2018.

Latest 30 degree day in Oslo?

The latest in the year that Oslo, Norway had a high temperature of at least 30 °C is August 26 which happened in 1947.

Earliest Days ≥ 30 °C

Date	Year	Temperature
May 30	2018	31.1 °C
June 2	2018	30.7 °C
June 3	2018	31.9 °C
June 6	2008	31.0 °C
June 8	2007	31.3 °C
June 9	2007	30.2 °C
June 10	2007	30.9 °C
June 15	2023	31.8 °C
June 15	1977	30.5 °C
June 16	2023	30.7 °C
June 17	2023	31.1 °C
June 17	1966	30.0 °C
June 18	1970	31.3 °C
June 19	1970	32.0 °C
June 20	1970	32.2 °C
June 21	1970	30.2 °C
June 25	1960	30.1 °C
June 26	1988	31.0 °C
June 27	2020	30.9 °C
June 27	1988	32.2 °C

Latest Days ≥ 30 °C

Date	Year	Temperature
August 26	1947	30.9 °C
August 25	1947	30.9 °C
August 14	1947	30.8 °C
August 11	1975	32.1 °C
August 10	2004	31.5 °C
August 10	1975	32.5 °C
August 10	1938	30.3 °C
August 9	2004	30.8 °C
August 9	1975	32.2 °C
August 9	1938	30.5 °C
August 8	1975	32.4 °C
August 7	1982	30.9 °C
August 7	1975	32.2 °C
August 6	1982	30.7 °C
August 6	1975	32.2 °C
August 5	1982	30.1 °C
August 5	1975	31.2 °C
August 4	1982	31.8 °C
August 4	1975	30.5 °C
August 3	1982	34.2 °C
August 3	1945	30.3 °C