Terneuzen in Summer
In summer (June, July and August), Terneuzen sees average daytime highs around 21°C and overnight lows near 14°C, with 210 mm of rain over about 35 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 21°C. The sky is clear or mostly clear about 20% of the time across summer, and the air most often feels dry.
Summer is Terneuzen's best season of the year to visit on our travel score. For the whole year in context, see Terneuzen's year-round climate.
- Avg daytime high
- 21°C
- warmest season of the year
- Avg overnight low
- 14°C
- Rainfall
- 210 mm
- 35 wet days
- Avg wind
- 13 km/h
- Travel score
- 6.2
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Terneuzen in Summer
Across summer, daytime highs hold fairly steady around 21°C.
A typical summer day in Terneuzen reaches about 21°C and drops to 14°C overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Terneuzen
Once humidity and wind are folded in, summer brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Terneuzen weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 6° / 2° | 59 | 11.9 | 0.8 | 8.2 | 0.5 |
| Feb | 7° / 2° | 52 | 10.7 | 1.2 | 9.6 | 0.8 |
| Mar | 10° / 4° | 51 | 11 | 0.5 | 11.5 | 2.3 |
| Apr | 14° / 6° | 49 | 11.3 | 0 | 13.5 | 3.9 |
| May | 18° / 10° | 61 | 12.2 | 0 | 15.3 | 5.3 |
| Jun | 20° / 13° | 63 | 10.9 | 0 | 16.3 | 6.0 |
| Jul | 22° / 15° | 73 | 12.3 | 0 | 15.9 | 6.3 |
| Aug | 22° / 15° | 74 | 11.6 | 0 | 14.4 | 6.4 |
| Sep | 19° / 12° | 59 | 10.9 | 0 | 12.4 | 5.8 |
| Oct | 15° / 9° | 60 | 11.6 | 0 | 10.4 | 4.1 |
| Nov | 10° / 6° | 64 | 12.5 | 0.3 | 8.6 | 2.0 |
| Dec | 7° / 3° | 70 | 13 | 1.1 | 7.7 | 0.7 |
Cloud cover in Summer
The sky is clear or mostly clear about 20% of the time across summer.
Chance of precipitation in Summer
Terneuzen gets around 210 mm of rain over 35 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 13 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 16 hours in early June to 13 h 24 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.1 kWh/m².
Is summer a good time to visit Terneuzen?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Terneuzen for sightseeing.
What to pack for Terneuzen in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Terneuzen sees daytime highs around 21°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 35 days see rain.
Sea temperature near Terneuzen in Summer
The nearest coast averages about 18°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 32 km away) is warmest in August at about 19°C and coldest in February near 6°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 6 | 6 | 6 | 9 | 12 | 16 | 18 | 19 | 18 | 15 | 11 | 8 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Cool | Cool | Bracing | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 6 | Bracing |
| Feb | 6 | Bracing |
| Mar | 6 | Bracing |
| Apr | 9 | Bracing |
| May | 12 | Bracing |
| Jun | 16 | Cool |
| Jul | 18 | Cool |
| Aug | 19 | Cool |
| Sep | 18 | Cool |
| Oct | 15 | Bracing |
| Nov | 11 | Bracing |
| Dec | 8 | Bracing |
UV index in Terneuzen in Summer
Clear-sky midday UV across summer averages around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Terneuzen peaks around June 23 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 1 | 3 | 4 | 6 | 6 | 6 | 6 | 4 | 2 | 1 | 1 |
| Level | Low | Low | Moderate | Moderate | High | High | High | High | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 1 | Low |
| Mar | 3 | Moderate |
| Apr | 4 | Moderate |
| May | 6 | High |
| Jun | 6 | High |
| Jul | 6 | High |
| Aug | 6 | High |
| Sep | 4 | Moderate |
| Oct | 2 | Moderate |
| Nov | 1 | Low |
| Dec | 1 | Low |
Air quality in Terneuzen in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Terneuzen is worst in April — around 17 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 12 | 13 | 17 | 17 | 16 | 15 | 13 | 15 | 14 | 12 | 12 | 11 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Moderate |
| Feb | 13 | Moderate |
| Mar | 17 | Moderate |
| Apr | 17 | Moderate |
| May | 16 | Moderate |
| Jun | 15 | Moderate |
| Jul | 13 | Moderate |
| Aug | 15 | Moderate |
| Sep | 14 | Moderate |
| Oct | 12 | Moderate |
| Nov | 12 | Good |
| Dec | 11 | Good |
Where is Terneuzen?
Terneuzen sits at 51.3°N, 3.8°E, 4 m above sea level, in The Netherlands. The nearest listed city is Borssele, 12 km away.
Topography around Terneuzen
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Terneuzen.
Within 3 km, the terrain around Terneuzen has only modest variations in elevation — a maximum elevation change of 21 m around an average of 1 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 38 m; within 80 km, significant variations in elevation — a maximum elevation change of 265 m.
The land around Terneuzen is covered by water (47%) and artificial surfaces (21%) within 3 km, cropland (46%) and water (24%) within 16 km, and cropland (27%), water (26%) and grassland (21%) within 80 km.
The Netherlands travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 84% of US
- price level, 2025
- GDP per capita
- $73,684
- 2025
- Happiness
- 7.2 / 10
- World Happiness, 2025
- Safe drinking water
- 100%
- of population, 2024
- Homicide rate
- 0.7
- per 100k, 2023
- Road deaths
- 4
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Very high
- EF EPI 624
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Terneuzen (51.3358°, 3.8278°, elevation 4 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.