Best time to visit Ostend

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.
Sea temp cold <18° chilly 18–21° ideal 22–26° warm 27–28° bathtub 29–30° too warm ≥31°
Recent · 2020-2024
Interest Google Trends 2021-2025 searches, not arrivals (?)
Sea Nov 2022 – Dec 2024 (?)
Day · avg daily high (?)
Night · avg overnight low (?)
UV index · On a typical day around midday, UV is about this (?)
112346553211
On the sunniest 1 in 10 days, UV reaches this — and even higher
3776
PM2.5 air quality · on a typical day (?)
1012131010107888810
On the worst 1 in 10 days, PM2.5 reaches this — and even higher
202226191515121414121520
June 8/10 feels 18°C (+2°C vs 1991-2020) · HCI 75/100
Day 20° · Night 13° 67% humidity 23 km/h wind 11 rain days (126h) 277h sun sea 18°C
Thermal 7
Sky 8
Rain 7
Wind 9

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 climatesBrighton95% · Deauville95% · Saint-Malo94%

Other destinations with the most-alike year-round climate to Ostend (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 Ostend'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 3–8 3 13 163 12.5 82% 28 93 1 Moderate 4
Feb 5–10 5 13 151 11.6 79% 32 107 1 Quiet 5
Mar 5–11 7 13 170 13.1 72% 26 171 2 Quiet 5
Apr 6–13 9 11 135 12.3 66% 25 229 3 Quiet 6
May 10–16 13 10 129 12.9 69% 24 274 4 Quiet 7
Jun 13–20 18 11 126 11.5 67% 23 277 6 Quiet 8
Jul 15–21 20 14 159 11.4 66% 23 272 5 Quiet 7
Aug 16–22 21 13 152 11.7 67% 23 261 5 Peak 7
Sep 14–20 19 12 149 12.4 69% 22 207 3 Quiet 7
Oct 11–16 14 16 180 11.3 77% 26 145 2 Quiet 5
Nov 7–11 8 16 180 11.3 82% 26 94 1 Busy 4
Dec 4–8 4 17 197 11.6 85% 28 67 1 Quiet 4

UV Index in Ostend by Month

UV index in Ostend peaks at 6 (moderate) in June, dropping to 1 (low) in January.

Best months in detail

June

8/10

13–20°C (feels 18°C) · 11 rain days (126h) · 277 sun hours · 67% humidity · Quiet crowd · UV 6 (moderate) · sunniest 1 in 10 days reach 7 (high)

May

7/10

10–16°C (feels 13°C) · 10 rain days (129h) · 274 sun hours · 69% humidity · Quiet crowd · UV 4 (moderate)

August

7/10

16–22°C · 13 rain days (152h) · 261 sun hours · 67% humidity · Peak crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 6 (high)

Every month

Show the other 9 months in detail

January

4/10

3–8°C (feels 3°C) · 13 rain days (163h) · 93 sun hours · 82% humidity · Moderate crowd · UV 1 (low)

February

5/10

5–10°C (feels 5°C) · 13 rain days (151h) · 107 sun hours · 79% humidity · Quiet crowd · UV 1 (low)

March

5/10

5–11°C (feels 7°C) · 13 rain days (170h) · 171 sun hours · 72% humidity · Quiet crowd · UV 2 (low) · sunniest 1 in 10 days reach 3 (moderate)

April

6/10

6–13°C (feels 9°C) · 11 rain days (135h) · 229 sun hours · 66% humidity · Quiet crowd · UV 3 (moderate)

July

7/10

15–21°C (feels 20°C) · 14 rain days (159h) · 272 sun hours · 66% humidity · Quiet crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 7 (high)

September

7/10

14–20°C (feels 19°C) · 12 rain days (149h) · 207 sun hours · 69% humidity · Quiet crowd · UV 3 (moderate)

October

5/10

11–16°C (feels 14°C) · 16 rain days (180h) · 145 sun hours · 77% humidity · Quiet crowd · UV 2 (low)

November

4/10

7–11°C (feels 8°C) · 16 rain days (180h) · 94 sun hours · 82% humidity · Busy crowd · UV 1 (low)

December

4/10

4–8°C (feels 4°C) · 17 rain days (197h) · 67 sun hours · 85% humidity · Quiet crowd · UV 1 (low)

Frequently asked questions about visiting Ostend

When is the best time to visit Ostend?

June is the highest-scoring month (8/10 on the Holiday Climate Index). Typical conditions: 13–20°C (11 rainy days). The top three months by score are June, May, August.

What is the worst time to visit Ostend?

December is the lowest-scoring month (4/10). Typical conditions: 4–8°C (17 rainy days).

When are crowds lowest in Ostend?

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 Ostend have good weather but fewer tourists?

June (climate 8/10, crowd index 25) and May (climate 7/10, crowd index 27) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.

What is the UV index in Ostend by month?

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

What is the UV index in Ostend in June?

June is the peak UV month in Ostend, with a daily-peak UV index of 6 (moderate). Standard sun protection — sunglasses and light SPF — is recommended.

How high can UV get in Ostend 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 (moderate), but the top 10% of days reach UV 7 (high) — and even higher. Months where the sunniest days routinely exceed the typical reading: March, June, July, August. Plan sun protection for the worst case, not the average.

Is air quality in Ostend bad for travelers?

PM2.5 (fine-particle pollution) exceeds the WHO sensitive-group guideline (15 µg/m³) in 8 months: January, February, March, April, May, June, November, December. The worst month is March with a typical-day mean of 13 µg/m³ (moderate); on the worst 10% of days PM2.5 reaches 26 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.