Finland

Best time to visit Helsinki

Based on 0 years of real historical weather data (2015–2026). Sunshine hours, rainfall, and temperature — week by week.

⭐ Best week

W30 · Jul 22–28

🌡 22.4°C avg☀️ 14.2h sun/day🌧 1.7mm/day

Weather score: 90/100

19.1°C

Avg summer temp

0.0°C

Avg winter temp

7.4h

Avg sunshine / day

2.0mm

Avg rainfall / day

Month-by-month weather

January33/100

🌡 -1.9°C☀️ 1.4h🌧 Light showers

February46/100

🌡 -0.6°C☀️ 3.6h🌧 Light showers

March56/100

🌡 2.3°C☀️ 6.7h🌧 Light showers

April63/100

🌡 7.4°C☀️ 10.0h🌧 Light showers

May80/100

🌡 14.0°C☀️ 13.2h🌧 Light showers

June80/100

🌡 17.6°C☀️ 13.6h🌧 Light showers

July90/100

🌡 20.1°C☀️ 12.9h🌧 Light showers

August85/100

🌡 19.6°C☀️ 11.2h🌧 Light showers

September71/100

🌡 15.2°C☀️ 7.8h🌧 Light showers

October53/100

🌡 7.8°C☀️ 4.4h🌧 Light showers

November32/100

🌡 4.0°C☀️ 1.9h🌧 Light showers

December36/100

🌡 2.7°C☀️ 1.5h🌧 Light showers

All weeks ranked by weather score

Week	Dates	Avg temp	Range	Sun / day	Rain / day	Score
W30	Jul 22–28	22.4°C	14.0°–24.7°	14.2h	1.7mm	90
W29	Jul 15–21	20.7°C	12.6°–22.8°	13.4h	1.7mm	88
W33	Aug 12–18	19.8°C	11.8°–21.8°	12.0h	1.7mm	85
W32	Aug 5–11	20.3°C	10.5°–22.9°	12.6h	2.3mm	83
W31	Jul 29–Aug 4	20.2°C	12.8°–22.0°	12.5h	2.4mm	82
W34	Aug 19–25	19.0°C	9.6°–20.7°	9.8h	2.1mm	81
W22	May 27–Jun 2	16.6°C	7.0°–19.9°	14.7h	1.1mm	80
W23	Jun 3–9	16.3°C	6.7°–18.9°	14.2h	1.0mm	80
W21	May 20–26	16.3°C	7.2°–19.5°	13.3h	1.3mm	79
W26	Jun 24–30	18.4°C	10.6°–20.7°	13.5h	2.2mm	78
W20	May 13–19	14.5°C	3.2°–18.3°	13.5h	0.9mm	77
W25	Jun 17–23	17.8°C	9.4°–20.7°	13.6h	2.5mm	77
W35	Aug 26–Sep 1	18.6°C	10.6°–20.6°	9.3h	2.4mm	77
W24	Jun 10–16	17.9°C	9.2°–20.8°	13.0h	2.7mm	75
W28	Jul 8–14	18.9°C	10.7°–21.4°	12.3h	3.7mm	74
W27	Jul 1–7	18.6°C	10.0°–21.9°	11.5h	3.7mm	72
W36	Sep 2–8	17.3°C	9.8°–19.6°	7.7h	2.1mm	71
W19	May 6–12	12.0°C	1.9°–15.4°	13.1h	2.1mm	67
W38	Sep 16–22	14.4°C	6.8°–16.0°	7.3h	1.6mm	66
W18	Apr 29–May 5	10.8°C	1.1°–13.7°	11.6h	2.2mm	65
W15	Apr 8–14	6.4°C	-3.4°–9.5°	10.1h	0.7mm	63
W16	Apr 15–21	8.2°C	-1.1°–11.4°	10.7h	1.4mm	63
W37	Sep 9–15	16.0°C	7.8°–18.3°	8.7h	4.0mm	63
W17	Apr 22–28	9.3°C	0.7°–11.3°	10.9h	2.0mm	62
W39	Sep 23–29	13.0°C	5.3°–15.0°	7.4h	1.8mm	62
W13	Mar 25–31	3.7°C	-6.3°–6.7°	8.8h	0.9mm	56
W42	Oct 14–20	8.8°C	0.1°–11.6°	5.2h	1.4mm	53
W14	Apr 1–7	5.8°C	-2.9°–8.0°	8.2h	1.7mm	52
W12	Mar 18–24	2.7°C	-7.5°–5.9°	7.2h	0.9mm	51
W11	Mar 11–17	2.0°C	-7.7°–4.7°	7.0h	1.5mm	49
W41	Oct 7–13	8.9°C	0.1°–11.3°	5.0h	2.3mm	48
W8	Feb 19–25	-1.4°C	-12.7°–0.7°	5.5h	1.3mm	46
W9	Feb 26–Mar 3	-1.0°C	-10.4°–1.3°	4.9h	0.8mm	45
W40	Sep 30–Oct 6	10.2°C	2.9°–13.0°	5.5h	3.5mm	45
W44	Oct 28–Nov 3	4.7°C	-3.2°–7.5°	3.7h	0.8mm	43
W7	Feb 12–18	1.2°C	-7.4°–3.6°	4.5h	1.3mm	42
W10	Mar 4–10	0.7°C	-8.4°–3.2°	3.7h	1.8mm	38
W52	Dec 23–29	2.9°C	-6.8°–5.3°	1.9h	1.2mm	36
W3	Jan 15–21	-2.8°C	-13.6°–0.9°	1.7h	1.7mm	33
W4	Jan 22–28	-0.5°C	-10.5°–2.2°	1.7h	1.7mm	33
W43	Oct 21–27	6.6°C	-0.0°–9.6°	2.6h	3.2mm	32
W48	Nov 25–Dec 1	2.1°C	-5.0°–4.4°	2.4h	2.4mm	32
W2	Jan 8–14	-1.9°C	-9.6°–0.5°	1.3h	1.8mm	31
W45	Nov 4–10	4.7°C	-0.6°–7.5°	1.9h	2.4mm	31
W6	Feb 5–11	-1.4°C	-8.4°–1.4°	2.3h	2.7mm	30
W50	Dec 9–15	2.4°C	-3.7°–4.8°	1.2h	2.2mm	29
W51	Dec 16–22	2.4°C	-3.2°–5.0°	1.1h	2.1mm	29
W1	Jan 1–7	-2.3°C	-12.7°–1.6°	0.9h	2.4mm	28
W46	Nov 11–17	5.6°C	-0.6°–7.9°	1.7h	3.4mm	28
W47	Nov 18–24	3.6°C	-2.4°–6.2°	1.6h	2.7mm	28
W49	Dec 2–8	3.1°C	-4.2°–6.2°	1.8h	2.9mm	28
W5	Jan 29–Feb 4	-0.3°C	-8.1°–1.5°	1.0h	3.1mm	24

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