Mariehamn
Åland Islands · 11K
Lifestyle Calendar
When this city supports your activity — and when it fights you.
Mariehamn
Åland Islands
Dinner Outside6 – 10 pm
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Verdict
Jan: 0% viability
0Feb: 0% viability
0Mar: 0% viability
0Apr: 5% viability
5May: 29% viability
29Jun: 69% viability
69Jul: 59% viability
59Aug: 49% viability
49Sep: 26% viability
26Oct: 1% viability
1Nov: 0% viability
0Dec: 0% viability
0Cold
Friction Breakdown
Heat
Cold
Wind
Rain
Humid
Air Q.
Best months: NoneChallenging: Jan–May, Sep–Dec
ComfortableModerateUncomfortable
Based on 2014–2024 hourly climate data · Updated Mar 2025Confidence: ●●●
Air Quality Profile
Annual and monthly PM2.5 levels against WHO guidelines.
Mariehamn
Åland Islands
Annual Average
ExcellentWHO annual classification
4.4µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
5.05.0 µg/m³ — Excellent
5.35.3 µg/m³ — Good
5.55.5 µg/m³ — Good
3.93.9 µg/m³ — Excellent
5.05.0 µg/m³ — Excellent
5.35.3 µg/m³ — Good
3.63.6 µg/m³ — Excellent
4.34.3 µg/m³ — Excellent
3.73.7 µg/m³ — Excellent
4.04.0 µg/m³ — Excellent
3.23.2 µg/m³ — Excellent
4.64.6 µg/m³ — Excellent
Jan
Feb
Mar
Apr
May
Jun
5.05.0 µg/m³ — Excellent
5.35.3 µg/m³ — Good
5.55.5 µg/m³ — Good
3.93.9 µg/m³ — Excellent
5.05.0 µg/m³ — Excellent
5.35.3 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
3.63.6 µg/m³ — Excellent
4.34.3 µg/m³ — Excellent
3.73.7 µg/m³ — Excellent
4.04.0 µg/m³ — Excellent
3.23.2 µg/m³ — Excellent
4.64.6 µg/m³ — Excellent
Best months: Jul, Sep, NovWorst months: Feb–Mar, Jun
Excellent0–5 µg/m³Good5–10 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholdsConfidence: ●●●
Sun & UV Profile
Monthly sunshine, sky clarity, and UV exposure patterns.
Mariehamn
Åland Islands
Annual Summary
Sunshine
2,020hrs/yr
Clear sky
42%
Worst month
0.0hrs/day
Vit D months
3.7months
UV 8+ days
0days/yr
UV 11+ days
0days/yr
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Daily hrs
0.00.0 hrs — No Sun
3.03.0 hrs — Low
7.07.0 hrs — Good
1111 hrs — Very Sunny
1313 hrs — Very Sunny
1414 hrs — Very Sunny
1313 hrs — Very Sunny
1111 hrs — Very Sunny
8.28.2 hrs — Sunny
4.04.0 hrs — Low
0.00.0 hrs — No Sun
0.00.0 hrs — No Sun
Jan
Feb
Mar
Apr
May
Jun
0.00.0 hrs — No Sun
3.03.0 hrs — Low
7.07.0 hrs — Good
1111 hrs — Very Sunny
1313 hrs — Very Sunny
1414 hrs — Very Sunny
Jul
Aug
Sep
Oct
Nov
Dec
1313 hrs — Very Sunny
1111 hrs — Very Sunny
8.28.2 hrs — Sunny
4.04.0 hrs — Low
0.00.0 hrs — No Sun
0.00.0 hrs — No Sun
Best months: May–JulWorst months: Jan, Nov–Dec
No SunLowGoodSunnyVery Sunny
Based on ERA5 sunshine data · CAMS UV indexConfidence: ●●●