How many sunny days does Oulu have per year?

Oulu averages approximately 128 sunny days per year, based on historical climate data.

What is the air quality in Oulu?

Oulu has an annual PM2.5 concentration of 4.3 µg/m³, classified as "Excellent" by WHO standards. Meets WHO guideline. Minimal health risk.

North Ostrobothnia

Oulu · Finland

Name: Oulu, Finland
Address: Oulu, FI

A city in Finland.

Photo by Janne Leimola on Unsplash

Small city

84K

33 km²

15m

01:56 UTC+2

EUR

Explore on map →Climate twin →

Oulu, Finland is a 84K-resident city with 128 sunny days and 173 frost days annually and an annual PM2.5 of 4.3 µg/m³. A city in Finland.

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Climate

Feels-like °C

-17

-10

-3

-11

-20

Dinner outside

Climate Lab · Oulu

Monthly climate metrics across temperature, precipitation, wind, and UV.

Metric	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Temperature
Daily high°C	1	1	4	7	17	23	23	22	15	10	5	-1	11
Daily mean°C	-7	-5	-2	1	9	17	18	17	11	6	-1	-6	5
Daily low°C	-16	-15	-8	-3	2	13	14	12	7	-1	-7	-13	-1
Thermal comfort
High feelsDaily high feels-like°C	-10	-8	2	14	18	25	25	24	14	5	-4	-12	8
Mean feelsDaily mean feels-like°C	-17	-17	-10	0	9	19	19	17	6	-3	-11	-20	-1
Low feelsDaily low feels-like°C	-30	-26	-22	-14	-2	11	12	10	-1	-12	-19	-25	-10
Humidity
HumidityRelative humidity%	90	88	80	74	60	61	75	77	84	92	92	89	80
Dewpoint°C	-9.4	-6.2	-4.3	-2.0	3.1	10.1	12.7	12.6	8.3	3.4	-2.1	-6.8	1.6
Precipitation
Rainfallmm	9	18	13	13	40	73	121	97	61	83	13	1	543
Rain days≥1mm	1	1	2	4	8	11	17	14	14	14	4	1	91
Snowfallmm	42	39	22	17	2	0	0	0	0	10	29	43	204
Snow days≥1mm	11	10	7	4	1	0	0	0	0	1	6	10	50
Wind
Wind avgm/s	4.3	3.6	3.5	3.3	3.2	2.9	2.8	3.0	3.7	4.0	3.4	3.8	3.5
Wind gustsm/s	7.4	7.0	7.2	5.7	5.2	5.5	5.0	5.9	6.5	6.5	6.8	6.1	6.2
Sun & UV
Sunshinehrs/day	0.0	0.0	7.7	10.7	12.7	14.4	11.7	10.6	5.0	2.0	0.0	0.0	6.2
Clear skyindex	9%	22%	45%	45%	47%	51%	31%	38%	29%	19%	12%	2%	29%
UV indexmax avg	0.1	0.3	0.9	2.1	2.9	4.0	3.0	2.4	1.1	0.4	0.1	0.0	1.4

Based on 2014–2024 hourly climate data · Updated Mar 2025

Confidence: High

Lifestyle Calendar · Oulu

Oulu offers a solid outdoor season. June through August are perfect for all activities, while December through January shut things down. Even dinner outside manages 3/12 months, while walking is comfortable 10/12 months — impressive.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Annual

3/12

Dinner Outside

0Jan: 0% viability

0Feb: 0% viability

0Mar: 0% viability

6Apr: 6% viability

40May: 40% viability

79Jun: 79% viability

71Jul: 71% viability

71Aug: 71% viability

22Sep: 22% viability

1Oct: 1% viability

0Nov: 0% viability

0Dec: 0% viability

3/12

Dinner Outside

0Jan: 0% viability

0Feb: 0% viability

0Mar: 0% viability

6Apr: 6% viability

40May: 40% viability

79Jun: 79% viability

71Jul: 71% viability

71Aug: 71% viability

22Sep: 22% viability

1Oct: 1% viability

0Nov: 0% viability

0Dec: 0% viability

24%

Cold

4/12

Lunch Outside

0Jan: 0% viability

1Feb: 1% viability

12Mar: 12% viability

48Apr: 48% viability

71May: 71% viability

83Jun: 83% viability

69Jul: 69% viability

74Aug: 74% viability

60Sep: 60% viability

17Oct: 17% viability

0Nov: 0% viability

0Dec: 0% viability

4/12

Lunch Outside

0Jan: 0% viability

1Feb: 1% viability

12Mar: 12% viability

48Apr: 48% viability

71May: 71% viability

83Jun: 83% viability

69Jul: 69% viability

74Aug: 74% viability

60Sep: 60% viability

17Oct: 17% viability

0Nov: 0% viability

0Dec: 0% viability

36%

Cold

10/12

Walking

57Jan: 57% viability

77Feb: 77% viability

96Mar: 96% viability

100Apr: 100% viability

100

100May: 100% viability

100

97Jun: 97% viability

96Jul: 96% viability

99Aug: 99% viability

99Sep: 99% viability

100Oct: 100% viability

100

87Nov: 87% viability

60Dec: 60% viability

10/12

Walking

57Jan: 57% viability

77Feb: 77% viability

96Mar: 96% viability

100Apr: 100% viability

100

100May: 100% viability

100

97Jun: 97% viability

96Jul: 96% viability

99Aug: 99% viability

99Sep: 99% viability

100Oct: 100% viability

100

87Nov: 87% viability

60Dec: 60% viability

89%

Cold

10/12

Running

57Jan: 57% viability

77Feb: 77% viability

96Mar: 96% viability

100Apr: 100% viability

100

100May: 100% viability

100

97Jun: 97% viability

96Jul: 96% viability

99Aug: 99% viability

99Sep: 99% viability

100Oct: 100% viability

100

87Nov: 87% viability

60Dec: 60% viability

10/12

Running

57Jan: 57% viability

77Feb: 77% viability

96Mar: 96% viability

100Apr: 100% viability

100

100May: 100% viability

100

97Jun: 97% viability

96Jul: 96% viability

99Aug: 99% viability

99Sep: 99% viability

100Oct: 100% viability

100

87Nov: 87% viability

60Dec: 60% viability

89%

Cold

Tap any month for details · Click activity name for overview

ComfortableModerateUncomfortable

Based on 2014–2024 hourly climate data · Updated Mar 2025

Confidence: High

Climate

Feels-like °C

-17

-10

-3

-11

-20

Dinner outside

Climate Lab · Oulu

Monthly climate metrics across temperature, precipitation, wind, and UV.

Metric	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Temperature
Daily high°C	1	1	4	7	17	23	23	22	15	10	5	-1	11
Daily mean°C	-7	-5	-2	1	9	17	18	17	11	6	-1	-6	5
Daily low°C	-16	-15	-8	-3	2	13	14	12	7	-1	-7	-13	-1
Thermal comfort
High feelsDaily high feels-like°C	-10	-8	2	14	18	25	25	24	14	5	-4	-12	8
Mean feelsDaily mean feels-like°C	-17	-17	-10	0	9	19	19	17	6	-3	-11	-20	-1
Low feelsDaily low feels-like°C	-30	-26	-22	-14	-2	11	12	10	-1	-12	-19	-25	-10
Humidity
HumidityRelative humidity%	90	88	80	74	60	61	75	77	84	92	92	89	80
Dewpoint°C	-9.4	-6.2	-4.3	-2.0	3.1	10.1	12.7	12.6	8.3	3.4	-2.1	-6.8	1.6
Precipitation
Rainfallmm	9	18	13	13	40	73	121	97	61	83	13	1	543
Rain days≥1mm	1	1	2	4	8	11	17	14	14	14	4	1	91
Snowfallmm	42	39	22	17	2	0	0	0	0	10	29	43	204
Snow days≥1mm	11	10	7	4	1	0	0	0	0	1	6	10	50
Wind
Wind avgm/s	4.3	3.6	3.5	3.3	3.2	2.9	2.8	3.0	3.7	4.0	3.4	3.8	3.5
Wind gustsm/s	7.4	7.0	7.2	5.7	5.2	5.5	5.0	5.9	6.5	6.5	6.8	6.1	6.2
Sun & UV
Sunshinehrs/day	0.0	0.0	7.7	10.7	12.7	14.4	11.7	10.6	5.0	2.0	0.0	0.0	6.2
Clear skyindex	9%	22%	45%	45%	47%	51%	31%	38%	29%	19%	12%	2%	29%
UV indexmax avg	0.1	0.3	0.9	2.1	2.9	4.0	3.0	2.4	1.1	0.4	0.1	0.0	1.4

Based on 2014–2024 hourly climate data · Updated Mar 2025

Confidence: High

Lifestyle Calendar · Oulu

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Annual

3/12

Dinner Outside

0Jan: 0% viability

0Feb: 0% viability

0Mar: 0% viability

6Apr: 6% viability

40May: 40% viability

79Jun: 79% viability

71Jul: 71% viability

71Aug: 71% viability

22Sep: 22% viability

1Oct: 1% viability

0Nov: 0% viability

0Dec: 0% viability

3/12

Dinner Outside

0Jan: 0% viability

0Feb: 0% viability

0Mar: 0% viability

6Apr: 6% viability

40May: 40% viability

79Jun: 79% viability

71Jul: 71% viability

71Aug: 71% viability

22Sep: 22% viability

1Oct: 1% viability

0Nov: 0% viability

0Dec: 0% viability

24%

Cold

4/12

Lunch Outside

0Jan: 0% viability

1Feb: 1% viability

12Mar: 12% viability

48Apr: 48% viability

71May: 71% viability

83Jun: 83% viability

69Jul: 69% viability

74Aug: 74% viability

60Sep: 60% viability

17Oct: 17% viability

0Nov: 0% viability

0Dec: 0% viability

4/12

Lunch Outside

0Jan: 0% viability

1Feb: 1% viability

12Mar: 12% viability

48Apr: 48% viability

71May: 71% viability

83Jun: 83% viability

69Jul: 69% viability

74Aug: 74% viability

60Sep: 60% viability

17Oct: 17% viability

0Nov: 0% viability

0Dec: 0% viability

36%

Cold

10/12

Walking

57Jan: 57% viability

77Feb: 77% viability

96Mar: 96% viability

100Apr: 100% viability

100

100May: 100% viability

100

97Jun: 97% viability

96Jul: 96% viability

99Aug: 99% viability

99Sep: 99% viability

100Oct: 100% viability

100

87Nov: 87% viability

60Dec: 60% viability

10/12

Walking

57Jan: 57% viability

77Feb: 77% viability

96Mar: 96% viability

100Apr: 100% viability

100

100May: 100% viability

100

97Jun: 97% viability

96Jul: 96% viability

99Aug: 99% viability

99Sep: 99% viability

100Oct: 100% viability

100

87Nov: 87% viability

60Dec: 60% viability

89%

Cold

10/12

Running

57Jan: 57% viability

77Feb: 77% viability

96Mar: 96% viability

100Apr: 100% viability

100

100May: 100% viability

100

97Jun: 97% viability

96Jul: 96% viability

99Aug: 99% viability

99Sep: 99% viability

100Oct: 100% viability

100

87Nov: 87% viability

60Dec: 60% viability

10/12

Running

57Jan: 57% viability

77Feb: 77% viability

96Mar: 96% viability

100Apr: 100% viability

100

100May: 100% viability

100

97Jun: 97% viability

96Jul: 96% viability

99Aug: 99% viability

99Sep: 99% viability

100Oct: 100% viability

100

87Nov: 87% viability

60Dec: 60% viability

89%

Cold

Tap any month for details · Click activity name for overview

ComfortableModerateUncomfortable

Based on 2014–2024 hourly climate data · Updated Mar 2025

Confidence: High

Oulu · Finland

Climate

Climate Lab · Oulu

Lifestyle Calendar · Oulu

Climate

Climate Lab · Oulu

Lifestyle Calendar · Oulu

Air Quality Profile

Air Quality Profile

Who thrives in Oulu

Frequently asked about Oulu

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