Delfzijl weather in May

In May, Delfzijl sees average daytime highs of 17°C and overnight lows near 9°C, with 64 mm of rain across 11.9 wet days and about 15.6 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 15°C in the first days to 18°C by the end. The sky is clear or mostly clear about 22% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 42 min at the start of May to 16 h 18 min by month's end. Set against the rest of the year, May is Delfzijl's 2nd-clearest and 8th-windiest month. For the whole year in context, see Delfzijl's year-round climate.

Daytime high
17°
5th warmest
Overnight low
8th coldest
Rainfall
64 mm
11.9 wet days
Daylight
15 h 36 min
4:40 AM – 8:17 PM
Cloud cover
65%
2nd clearest
Wind
15 km/h
8th windiest
Solar energy
5.26 kWh/m²
Travel score
5.0
out of 10

Delfzijl is city in Eemsdelta, Netherlands.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 15°C in the first days to 18°C by the end.

A typical May day in Delfzijl reaches about 17°C in the afternoon and slips back to 9°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 23°C. Set against its neighbours, May runs about 4°C warmer than April and about 3°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1157
2157
3157
4167
5167
6167
7168
8168
9168
10168
11168
12168
13168
14178
15178
16179
17179
18179
19179
20179
21179
22179
23189
241810
251810
261810
271810
281810
291810
301810
311810

How May really feels in Delfzijl

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Delfzijl weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 65131.67.80.0
Feb / 5010.629.40.2
Mar / 5311.40.911.51.7
Apr13° / 5310.90.113.73.6
May17° / 6411.9015.65.0
Jun19° / 11°8213.2016.65.5
Jul22° / 14°9414.8016.25.8
Aug21° / 14°8714.4014.65.8
Sep18° / 11°6911.5012.45.4
Oct14° / 6312.5010.33.6
Nov / 5712.50.28.41.4
Dec / 6312.81.87.40.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 63%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23763
33763
43862
53862
63862
73862
83961
93961
103862
113763
123862
133862
143862
153763
163763
173763
183763
193664
203565
213565
223664
233664
243565
253565
263565
273565
283664
293664
303466
313466

Chance of precipitation in May

Any precipitation

Delfzijl gets around 64 mm of rain over 11.9 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 39% and peaks near 40% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
140
240
340
440
539
639
738
838
938
1038
1138
1238
1338
1438
1538
1638
1738
1838
1938
2038
2139
2239
2339
2439
2539
2639
2739
2839
2939
3040
3140

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the dry band about 92% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19910
29910
39820
49820
59820
69820
79820
89730
99730
109730
119640
129640
139550
149550
159550
169361
179361
189271
199271
209181
219181
229091
238992
2488102
2587112
2686113
2785123
2884133
2982144
3081154
3180164

Wind in May

Winds average 15 km/h in May.

Across May, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 42 min at the start of May to 16 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 96 minutes over May. Sunrise moves from 5:08 AM to 4:20 AM, and sunset from 7:51 PM to 8:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.75:087:51
214.85:067:53
314.85:047:54
414.95:027:56
515.05:007:58
615.04:588:00
715.14:568:02
815.14:548:03
915.24:528:05
1015.34:518:07
1115.34:498:08
1215.44:478:10
1315.44:458:12
1415.54:448:14
1515.64:428:15
1615.64:408:17
1715.74:398:19
1815.74:378:20
1915.84:368:22
2015.84:348:23
2115.94:338:25
2215.94:318:26
2316.04:308:28
2416.04:298:29
2516.14:278:31
2616.14:268:32
2716.14:258:34
2816.24:248:35
2916.24:238:36
3016.34:218:38
3116.34:208:39

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.26 kWh/m².

For context, solar energy here swings from a low near 0.51 kWh/m² to a high of 5.47 kWh/m² in June across the year — May's 5.26 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.1Bright
75.1Bright
85.1Bright
95.1Bright
105.2Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.5Bright
315.5Bright
Planning a trip in May

Is May a good time to visit Delfzijl?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.0
Sightseeing
5th-best month of the year
1.1
Beach & pool
5th-best month of the year

May is a reasonable time to visit Delfzijl for sightseeing.

What to pack for Delfzijl in May

From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In May, Delfzijl sees daytime highs around 17°C and nights near 9°C. Worth packing: a warm layer, rain gear and sun protection. About 12 days see rain.

a warm layerrain gearsun protection

Sea temperature near Delfzijl in May

The nearest coast averages about 12°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 19°C and coldest in February near 4°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

0°5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan4Bracing
Feb4Bracing
Mar5Bracing
Apr8Bracing
May12Bracing
Jun15Cool
Jul18Cool
Aug19Cool
Sep17Cool
Oct13Bracing
Nov9Bracing
Dec6Bracing

UV index in Delfzijl in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Delfzijl peaks around June 23 at about 6 (high) — a little sun protection helps at midday. 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 23UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr3Moderate
May5High
Jun6High
Jul6High
Aug6High
Sep4Moderate
Oct2Low
Nov1Low
Dec1Low
Location & terrain

Where is Delfzijl?

Delfzijl sits at 53.3°N, 6.9°E, 0 m above sea level, in The Netherlands. The nearest listed city is Emden, 20 km away.

EmdenHoogezandWinschotenVeendamKorrewegwijkGroningenWeenerNorden

Topography around Delfzijl

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Delfzijl.

Within 3 km, the terrain around Delfzijl has only modest variations in elevation — a maximum elevation change of 29 m around an average of 1 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 30 m; within 80 km, only modest variations in elevation — a maximum elevation change of 104 m.

The land around Delfzijl is covered by water (35%) and grassland (34%) within 3 km, cropland (38%), grassland (28%) and water (26%) within 16 km, and grassland (31%), water (31%) and cropland (22%) within 80 km.

3 km
29 m
16 km
30 m
80 km
104 m
treesgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Emden 20 km · Hoogezand 21 km · Winschoten 22 km · Veendam 25 km · Korrewegwijk 26 km · Groningen 26 km · Weener 34 km · Norden 35 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
none 54%Roman Catholic 20%Protestant 15%other 6%

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 Delfzijl (53.33°, 6.9181°, elevation 0 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).