Pematangsiantar
Indonesia · 448K
Lifestyle Calendar
When this city supports your activity — and when it fights you.
PematangsiantarIndonesia
IndonesiaDinner Outside6 – 10 pm
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Verdict
Jan: 59% viability
59Feb: 64% viability
64Mar: 64% viability
64Apr: 64% viability
64May: 57% viability
57Jun: 58% viability
58Jul: 62% viability
62Aug: 50% viability
50Sep: 60% viability
60Oct: 50% viability
50Nov: 44% viability
44Dec: 42% viability
42Humid
Friction Breakdown
Heat
Cold
Wind
Rain
Humid
Air Q.
Best months: NoneChallenging: None
ComfortableModerateUncomfortable
Based on 2014–2024 hourly climate data · Updated Mar 2025Confidence: ●●●
Air Quality Profile
Annual and monthly PM2.5 levels against WHO guidelines.
PematangsiantarIndonesia
IndonesiaAnnual Average
ModerateWHO annual classification
19.7µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1919 µg/m³ — Moderate
1919 µg/m³ — Moderate
2020 µg/m³ — Moderate
2323 µg/m³ — Moderate
2222 µg/m³ — Moderate
2121 µg/m³ — Moderate
2525 µg/m³ — Moderate
2121 µg/m³ — Moderate
1919 µg/m³ — Moderate
1818 µg/m³ — Moderate
1818 µg/m³ — Moderate
1313 µg/m³ — Fair
Jan
Feb
Mar
Apr
May
Jun
1919 µg/m³ — Moderate
1919 µg/m³ — Moderate
2020 µg/m³ — Moderate
2323 µg/m³ — Moderate
2222 µg/m³ — Moderate
2121 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
2525 µg/m³ — Moderate
2121 µg/m³ — Moderate
1919 µg/m³ — Moderate
1818 µg/m³ — Moderate
1818 µg/m³ — Moderate
1313 µg/m³ — Fair
Best months: Oct–DecWorst months: Apr–May, Jul
Fair10–15 µg/m³Moderate15–25 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholdsConfidence: ●●●
Sun & UV Profile
Monthly sunshine, sky clarity, and UV exposure patterns.
PematangsiantarIndonesia
IndonesiaAnnual Summary
Sunshine
1,701hrs/yr
Clear sky
23%
Worst month
2.9hrs/day
Vit D months
11.6months
UV 8+ days
208days/yr
UV 11+ days
19days/yr
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Daily hrs
8.98.9 hrs — Sunny
9.29.2 hrs — Sunny
8.98.9 hrs — Sunny
8.08.0 hrs — Good
8.78.7 hrs — Sunny
9.09.0 hrs — Sunny
9.09.0 hrs — Sunny
8.08.0 hrs — Good
8.08.0 hrs — Good
7.07.0 hrs — Good
6.06.0 hrs — Moderate
7.07.0 hrs — Good
Jan
Feb
Mar
Apr
May
Jun
8.98.9 hrs — Sunny
9.29.2 hrs — Sunny
8.98.9 hrs — Sunny
8.08.0 hrs — Good
8.78.7 hrs — Sunny
9.09.0 hrs — Sunny
Jul
Aug
Sep
Oct
Nov
Dec
9.09.0 hrs — Sunny
8.08.0 hrs — Good
8.08.0 hrs — Good
7.07.0 hrs — Good
6.06.0 hrs — Moderate
7.07.0 hrs — Good
Best months: Feb, Jun–JulWorst months: Oct–Dec
ModerateGoodSunny
Based on ERA5 sunshine data · CAMS UV indexConfidence: ●●●