Best time to visit Siófok

Re-score for me — drag the dial — every chart recolours live for your heat & sea limits 27°C · sea 29°C
I'm comfortable up to 27°C feels-like
22° heat-averse 30° heat-loving

Default 27 °C is the upper edge of the Holiday Climate Index "ideal comfort" band (Scott, Rutty, Amelung & Tang, 2016). Above this, most warm-tourism travellers report measurable discomfort.

Sea feels bathtub at 29°C
26° strict 31° tolerant

Default 29 °C is the Beach Climate Index "bathtub" line (Morgan et al.) — where the sea stops being refreshing and starts feeling like a warm bath.

Saved to this browser. Changes update the strips below.
Recent · 2020-2024
Interest Google Trends 2021-2025 searches, not arrivals (?)
Day · avg daily high (?)
Night · avg overnight low (?)
UV index · On a typical day around midday, UV is about this (?)
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On the sunniest 1 in 10 days, UV reaches this — and even higher
4668763
PM2.5 air quality · on a typical day (?)
151513977788101317
On the worst 1 in 10 days, PM2.5 reaches this — and even higher
252520131211111414172228
July 9/10 feels 28°C (+1°C vs 1991-2020) · HCI 91/100
Day 28° · Night 20° · cools 8° at night 50% humidity 20 km/h wind 8 rain days (60h) 302h sun
Thermal 9
Sky 10
Rain 9
Wind 10

Higher = better, including rain & wind (green = "doesn't hurt the score", not "lots of it").

How is this scored? HCI / Steadman / CCI gate — full methodology and citations below.

Compare with another destination

Add as many as you like — stacked below the main strips above. Each row is just the recent-window score strip and (for beach destinations) sea-temperature strip.

Similar climatesConstanța91% · Rimini90% · Piran90%

Other destinations with the most-alike year-round climate to Siófok (apparent temperature, rain hours, sunshine — matched within the same trip-profile). The ±N chip compares each match's typical score for the current month against Siófok's. Based on the 2020-2024 climatology, not this year's actual weather.

Month-by-month

Month Temp °C Feels °C Rain days Rain h Rain h/day Humidity Wind km/h Sun h UV Interest Score
Jan 0–5 1 8 95 11.9 77% 20 125 1 Quiet 6
Feb 2–9 5 6 71 11.8 68% 23 155 2 Quiet 7
Mar 4–12 8 6 60 10.0 56% 21 204 3 Quiet 8
Apr 7–16 12 7 78 11.1 52% 21 227 4 Quiet 8
May 13–21 19 13 112 8.6 55% 20 252 5 Quiet 8
Jun 18–26 26 9 88 9.8 56% 19 291 6 Quiet 9
Jul 20–28 28 8 60 7.5 50% 20 302 7 Quiet 9
Aug 20–28 28 8 70 8.8 53% 18 276 6 Peak 9
Sep 15–23 22 8 85 10.6 59% 18 215 4 Quiet 9
Oct 10–17 15 7 81 11.6 70% 19 177 2 Quiet 8
Nov 5–9 6 9 101 11.2 79% 18 115 1 Quiet 6
Dec 1–5 2 11 121 11.0 83% 18 94 1 Quiet 5

UV Index in Siófok by Month

UV index in Siófok peaks at 7 (high) in July, dropping to 1 (low) in December. June, July have high UV — SPF 30+ and sunglasses recommended.

Best months in detail

July

9/10

20–28°C · 8 rain days (60h) · 302 sun hours · 50% humidity · Quiet crowd · UV 7 (high)

August

9/10

20–28°C · 8 rain days (70h) · 276 sun hours · 53% humidity · Peak crowd · UV 6 (moderate) · sunniest 1 in 10 days reach 7 (high)

September

9/10

15–23°C · 8 rain days (85h) · 215 sun hours · 59% humidity · Quiet crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 6 (moderate)

Every month

Show the other 9 months in detail

January

6/10

0–5°C (feels 1°C) · 8 rain days (95h) · 125 sun hours · 77% humidity · Quiet crowd · UV 1 (low)

February

7/10

2–9°C (feels 5°C) · 6 rain days (71h) · 155 sun hours · 68% humidity · Quiet crowd · UV 2 (low)

March

8/10

4–12°C (feels 8°C) · 6 rain days (60h) · 204 sun hours · 56% humidity · Quiet crowd · UV 3 (low) · sunniest 1 in 10 days reach 4 (moderate)

April

8/10

7–16°C (feels 12°C) · 7 rain days (78h) · 227 sun hours · 52% humidity · Quiet crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 6 (moderate)

May

8/10

13–21°C (feels 19°C) · 13 rain days (112h) · 252 sun hours · 55% humidity · Quiet crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 6 (high)

June

9/10

18–26°C · 9 rain days (88h) · 291 sun hours · 56% humidity · Quiet crowd · UV 6 (high) · sunniest 1 in 10 days reach 8 (high)

October

8/10

10–17°C (feels 15°C) · 7 rain days (81h) · 177 sun hours · 70% humidity · Quiet crowd · UV 2 (low) · sunniest 1 in 10 days reach 3 (moderate)

November

6/10

5–9°C (feels 6°C) · 9 rain days (101h) · 115 sun hours · 79% humidity · Quiet crowd · UV 1 (low)

December

5/10

1–5°C (feels 2°C) · 11 rain days (121h) · 94 sun hours · 83% humidity · Quiet crowd · UV 1 (low)

Frequently asked questions about visiting Siófok

When is the best time to visit Siófok?

July is the highest-scoring month (9/10 on the Holiday Climate Index). Typical conditions: 20–28°C (8 rainy days). The top three months by score are July, August, September.

What is the worst time to visit Siófok?

December is the lowest-scoring month (5/10). Typical conditions: 1–5°C (11 rainy days).

When are crowds lowest in Siófok?

Search-interest seasonality (Google Trends 2021-2025) is lowest in February and peaks in August. Interest tracks both in-trip visitors and lead-time planners, so treat it as a "destination is on people's minds" signal rather than literal arrivals.

Which months in Siófok have good weather but fewer tourists?

June (climate 9/10, crowd index 0) and July (climate 9/10, crowd index 0) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.

What is the UV index in Siófok by month?

UV peaks at 7 (high) in July and is lowest in December at 1 (low). Monthly peak values: Jan 1, Feb 2, Mar 3, Apr 4, May 5, Jun 6, Jul 7, Aug 6, Sep 4, Oct 2, Nov 1, Dec 1.

What is the UV index in Siófok in July?

July is the peak UV month in Siófok, with a daily-peak UV index of 7 (high). Apply SPF 30+, wear sunglasses, and seek shade during midday hours.

How high can UV get in Siófok on the sunniest days?

Most days look like the monthly average, but on the sunniest ~1 in 10 days UV climbs higher than the mean suggests. June is the worst case: typical days average UV 6 (high), but the top 10% of days reach UV 8 (high) — and even higher. Months where the sunniest days routinely exceed the typical reading: March, April, May, June, August, September, October. Plan sun protection for the worst case, not the average.

Is air quality in Siófok bad for travelers?

PM2.5 (fine-particle pollution) exceeds the WHO sensitive-group guideline (15 µg/m³) in 6 months: January, February, March, October, November, December. The worst month is December with a typical-day mean of 17 µg/m³ (unhealthy for sensitive); on the worst 10% of days PM2.5 reaches 28 µg/m³ (unhealthy) and higher. People with asthma, heart conditions, or sensitive children may want to avoid these months or limit outdoor activity. Source: CAMS via Open-Meteo.