Trier weather in July

In July, Trier sees average daytime highs of 23°C and overnight lows near 13°C, with 71 mm of rain across 12.3 wet days and about 15.7 hours of daylight. It is the 1st-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 22°C in the first days to 23°C by the end. The sky is clear or mostly clear about 23% of the time in July, and the air most often feels dry.

Daylight stretches from about 16 h 06 min at the start of July to 15 h 06 min by month's end. Set against the rest of the year, July is Trier's 2nd-clearest and 11th-windiest month. For the whole year in context, see Trier's year-round climate.

Daytime high
23°
1st warmest
Overnight low
13°
12th coldest
Rainfall
71 mm
12.3 wet days
Daylight
15 h 42 min
4:48 AM – 8:30 PM
Cloud cover
62%
2nd clearest
Wind
10 km/h
11th windiest
Solar energy
5.33 kWh/m²
Travel score
6.4
out of 10
Air quality
Moderate
PM2.5 11.1 µg/m³ · 2019

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 22°C in the first days to 23°C by the end.

A typical July day in Trier reaches about 23°C in the afternoon and slips back to 13°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 29°C. Set against its neighbours, July runs about 2°C warmer than June and on par with August.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12213
22213
32213
42213
52213
62213
72213
82213
92213
102213
112213
122213
132213
142213
152313
162313
172313
182313
192313
202314
212314
222314
232314
242314
252314
262314
272314
282414
292414
302414
312414

How July really feels in Trier

Once humidity and wind are folded in, July 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

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

Trier weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -1°8213.13.78.40.0
Feb / -1°6711.23.99.80.1
Mar / 7012.7211.51.7
Apr13° / 5711.60.413.53.6
May17° / 7312.9015.15.1
Jun20° / 11°72120165.9
Jul23° / 13°7112.3015.76.4
Aug22° / 13°7011.2014.26.5
Sep18° / 10°6710.4012.45.6
Oct13° / 7311.9010.53.4
Nov / 77131.38.81.0
Dec / 9914.44.180.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 19% of July, with mostly cloudy or overcast conditions the remaining 58%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13862
23862
33862
43862
53763
63763
73862
83763
93763
103862
113862
123862
133961
144060
154159
164258
174357
184357
194456
204456
214555
224654
234654
244753
254753
264852
274852
284852
294852
304852
314951

Chance of precipitation in July

Any precipitation

Trier gets around 71 mm of rain over 12.3 wet days in July. 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 41% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
138
238
339
439
540
640
740
840
941
1041
1140
1240
1340
1440
1540
1640
1740
1840
1940
2039
2139
2239
2339
2439
2538
2638
2738
2837
2937
3037
3137

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the dry band about 56% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
165269
265269
364279
464279
563289
662299
762299
861309
961318
1061318
1160328
1260328
1359329
1458339
1558339
16573310
17553411
18553411
19543412
20543412
21533413
22523414
23523414
24523414
25503515
26503515
27503515
28503515
29493615
30493615
31483715

Wind in July

Winds average 10 km/h in July.

Across July, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 16 h 06 min at the start of July to 15 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over July. Sunrise moves from 4:35 AM to 5:07 AM, and sunset from 8:38 PM to 8:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
116.14:358:38
216.04:368:38
316.04:368:38
416.04:378:38
516.04:388:37
616.04:398:37
716.04:398:36
815.94:408:36
915.94:418:35
1015.94:428:35
1115.94:438:34
1215.84:448:33
1315.84:458:33
1415.84:468:32
1515.74:478:31
1615.74:488:30
1715.74:498:29
1815.64:508:28
1915.64:518:27
2015.64:528:26
2115.54:548:25
2215.54:558:24
2315.54:568:23
2415.44:578:22
2515.44:598:21
2615.35:008:19
2715.35:018:18
2815.25:028:17
2915.25:048:15
3015.15:058:14
3115.15:078:13

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.33 kWh/m².

For context, solar energy here swings from a low near 0.66 kWh/m² to a high of 5.49 kWh/m² in June across the year — July's 5.33 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in July

Is July a good time to visit Trier?

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

6.4
Sightseeing
2nd-best month of the year
4.8
Beach & pool
1st-best month of the year

July is a reasonable time to visit Trier for sightseeing.

What to pack for Trier in July

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

In July, Trier sees daytime highs around 23°C and nights near 13°C. Worth packing: light clothes, rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

UV index in Trier in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Trier peaks around July 16 at about 7 (very 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 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 16UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May6High
Jun7High
Jul8Very high
Aug7High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Trier?

Trier sits at 49.8°N, 6.6°E, 141 m above sea level, in Germany. The nearest listed city is Konz, 8.0 km away.

Topography around Trier

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

Within 3 km, the terrain around Trier has significant variations in elevation — a maximum elevation change of 269 m around an average of 196 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 601 m; within 80 km, large variations in elevation — a maximum elevation change of 747 m.

The land around Trier is covered by trees (55%) and artificial surfaces (29%) within 3 km, trees (55%) and grassland (21%) within 16 km, and trees (52%) and grassland (24%) within 80 km.

3 km
269 m
16 km
601 m
80 km
747 m
treesgrasslandcroplandartificial surfaceswater
July weather nearby: Konz 8.0 km · Losheim 28 km · Wadern 30 km · Wittlich 31 km · Merzig 35 km · Schmelz 39 km · Beckingen 40 km · Luxembourg 40 km

Germany travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 80% of US
price level, 2025
GDP per capita
$60,496
2025
Happiness
6.9 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
0.9
per 100k, 2023
Road deaths
3.8
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 615
Religion
none 44%Roman Catholic 25%Protestant 23%other 5%

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 Trier (49.7557°, 6.6394°, elevation 141 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. 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).