Climate Chart of Oulu, Finland

Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023

For Oulu, Finland, the climate data cover 2013–2023. The annual pattern spans markedly different monthly mean temperatures, from January at -7.3 °C to July at 16.9 °C. Sunshine also varies widely across the year, while the rainfall and snowfall figures describe average daily amounts rather than monthly totals. Taken together, these measures outline a pronounced contrast between the colder, less-sunny part of the year and the warmer, brighter months, without describing conditions on any particular day.

Climate overview

Temperature

Monthly mean temperatures reach their low in January, at -7.3 °C, and their high in July, at 16.9 °C. These are averages for each month, not daytime highs or lows, so they provide a broad guide to the seasonal temperature range rather than a forecast of daily conditions. The unweighted mean of the monthly mean temperatures is 4.0 °C. It summarizes the calendar-month averages without weighting them by the number of days in each month.

Sunshine

Mean daily sunshine duration is greatest in June, at 13.78 hours/day, and least in December, at 0.41 hours/day. This contrast can help with broad outdoor-planning expectations, but sunshine duration is not the same as day length and does not promise clear skies on a given day. Across the monthly figures, the unweighted mean daily sunshine duration is 6.62 hours/day. It is a summary of monthly averages, not a measure of daylight hours or a prediction for particular dates.

Rain

Mean daily rainfall is lowest in February, at 0.15 mm/day, and highest in August, at 3.07 mm/day. The lower average may suit plans that prioritize less rainfall, while the higher one is a reason to prepare for wet-weather possibilities; neither figure indicates how often rain falls or guarantees conditions on a visit. The unweighted mean of the monthly mean daily rainfall figures is 1.38 mm/day. These are daily averages, not monthly accumulation totals, and they do not show the timing or duration of individual rain events.

Snow

Mean daily snowfall reaches its highest monthly average in December, at 10.01 mm/day. The unweighted mean of the monthly mean daily snowfall figures is 3.84 mm/day. These amounts describe averages, not the number of snowy days, snow depth, snow cover or skiing conditions.

Best Travel Time Guide for Oulu, Finland: Ideal Seasons and Weather Insights

For visitors prioritising cooler monthly mean temperatures, January is the relevant reference point, with a monthly mean of -7.3 °C; this is an average, not a typical daytime maximum or a guarantee about conditions during a trip. Those seeking the warmest monthly mean can use July, at 16.9 °C, as a separate temperature-based criterion. Visitors prioritising lower average rainfall can consider February, when mean daily rainfall is 0.15 mm/day. For preparation, the highest monthly mean daily rainfall is in August, at 3.07 mm/day; carry suitable wet-weather gear, while remembering that averages do not tell you how frequently rain occurs or whether a particular day will be wet.

For outdoor sightseeing planned around mean daily sunshine, June records 13.78 hours/day, while December records 0.41 hours/day. These are sunshine-duration averages, not day-length figures or a forecast, so keep plans flexible and check conditions close to travel. Snowfall averages peak in December, at 10.01 mm/day mean daily snowfall. That figure alone cannot establish snow cover, the number of snowy days or suitability for snow-dependent activities, so use it only as a broad seasonal reference when planning.

Climate Data Overview for Oulu, Finland

Explore the comprehensive climate data for Oulu, Finland. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes, helping you understand the unique weather patterns of this region.

Month	Average: Temperature °C	Rain (mm) / day	Snow (mm) / day	Sunshine (h) / day
Jan	-7.3	0.18	8.30	0.74
Feb	-5.8	0.15	8.18	2.38
Mar	-3.9	0.23	6.36	6.53
Apr	0.9	0.62	3.44	9.60
May	8.0	1.58	0.94	11.74
Jun	14.0	2.27	0.02	13.78
Jul	16.9	2.78	0.00	12.68
Aug	15.3	3.07	0.00	10.54
Sep	10.5	2.29	0.16	6.75
Oct	3.6	2.00	2.45	3.50
Nov	-0.7	0.97	6.17	0.83
Dec	-3.7	0.37	10.01	0.41
Average	4.0	1.38	3.84	6.62