Senec weather in July

In July, Senec sees average daytime highs of 27°C and overnight lows near 16°C, with 74 mm of rain across 11 wet days and about 15.5 hours of daylight. It is the 1st-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 37% of the time in July, and the air most often feels comfortable.

Daylight stretches from about 15 h 48 min at the start of July to 14 h 54 min by month's end. Set against the rest of the year, July is Senec's 2nd-clearest and 11th-windiest month. For the whole year in context, see Senec's year-round climate.

Daytime high
27°
1st warmest
Overnight low
16°
12th coldest
Rainfall
74 mm
11 wet days
Daylight
15 h 30 min
4:11 AM – 7:41 PM
Cloud cover
53%
2nd clearest
Wind
11 km/h
11th windiest
Solar energy
5.69 kWh/m²
Travel score
6.4
out of 10

Senec is town in Slovakia.

Density
520/km²
people per km²
Founded
1251

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical July day in Senec reaches about 27°C in the afternoon and slips back to 16°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 33°C. Set against its neighbours, July runs about 2°C warmer than June and on par with August.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12615
22715
32715
42716
52716
62716
72716
82716
92716
102716
112716
122716
132716
142716
152716
162716
172716
182716
192716
202716
212717
222817
232817
242817
252817
262817
272817
282817
292817
302817
312817

How July really feels in Senec

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.

Senec weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°3683.98.60.0
Feb / -1°337.93.29.90.3
Mar11° / 408.41.611.62.6
Apr17° / 4280.313.45.4
May21° / 11°6710.7014.96.4
Jun25° / 14°7210.8015.86.7
Jul27° / 16°7411015.56.4
Aug27° / 16°649.4014.16.7
Sep22° / 12°648.6012.46.8
Oct15° / 488.60.110.64.8
Nov / 478.81.691.7
Dec / -1°418.72.98.20.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 21% of July, with mostly cloudy or overcast conditions the remaining 42%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25941
35842
45842
55842
65842
75743
85743
95743
105644
115545
125545
135545
145545
155545
165644
175644
185644
195743
205743
215842
225842
235842
245941
256040
266040
276040
286139
296139
306139
316238

Chance of precipitation in July

Any precipitation

Senec gets around 74 mm of rain over 11 wet days in July, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 35% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
132
232
332
433
533
634
734
834
934
1035
1135
1235
1335
1435
1535
1636
1736
1836
1936
2037
2137
2237
2337
2436
2536
2636
2736
2836
2935
3035
3134

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the comfortable band about 37% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14730212
24731212
34631212
44532212
54533212
64434212
74334212
84335212
94236212
104136212
114037212
123937222
133838223
143738223
153638233
163538233
173439243
183339253
193239254
203139264
213039264
223040274
232940275
242840285
252740285
262739285
272639296
282639296
292639306
302638306
312638306

Wind in July

Winds average 11 km/h in July.

Across July, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 15 h 48 min at the start of July to 14 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 54 minutes over July. Sunrise moves from 3:59 AM to 4:29 AM, and sunset from 7:48 PM to 7:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.83:597:48
215.84:007:48
315.84:007:48
415.84:017:48
515.84:027:47
615.74:027:47
715.74:037:47
815.74:047:46
915.74:057:46
1015.74:057:45
1115.64:067:44
1215.64:077:44
1315.64:087:43
1415.64:097:42
1515.54:107:42
1615.54:117:41
1715.54:127:40
1815.44:137:39
1915.44:147:38
2015.44:157:37
2115.34:167:36
2215.34:187:35
2315.34:197:34
2415.24:207:33
2515.24:217:32
2615.14:227:31
2715.14:247:30
2815.14:257:28
2915.04:267:27
3015.04:277:26
3114.94:297:24

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.69 kWh/m².

For context, solar energy here swings from a low near 0.87 kWh/m² to a high of 5.87 kWh/m² in June across the year — July's 5.69 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
55.9Bright
65.9Bright
75.9Bright
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.7Bright
145.7Bright
155.7Bright
165.7Bright
175.7Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in July

Is July a good time to visit Senec?

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

6.4
Sightseeing
4th-best month of the year
6.6
Beach & pool
2nd-best month of the year

July is a reasonable time to visit Senec for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Senec in July

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

In July, Senec sees daytime highs around 27°C and nights near 16°C. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

UV index in Senec 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 Senec peaks around July 11 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 22 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 11UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr6High
May6High
Jun7Very high
Jul8Very high
Aug6High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Senec in July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.

Air quality in Senec is worst in June — around 17 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodJun 1516 µg/m³Dec 1411 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb13Moderate
Mar16Moderate
Apr16Moderate
May16Moderate
Jun17Moderate
Jul15Moderate
Aug15Moderate
Sep13Moderate
Oct12Moderate
Nov12Good
Dec11Good
Location & terrain

Where is Senec?

Senec sits at 48.2°N, 17.4°E, 127 m above sea level, in Slovakia. The nearest listed city is Pezinok, 13 km away.

Staré MestoGalanta

Topography around Senec

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

Within 3 km, the terrain around Senec has only modest variations in elevation — a maximum elevation change of 50 m around an average of 129 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 289 m; within 80 km, large variations in elevation — a maximum elevation change of 951 m.

The land around Senec is covered by cropland (56%) and artificial surfaces (20%) within 3 km, cropland (68%) within 16 km, and cropland (57%) and trees (25%) within 80 km.

3 km
50 m
16 km
289 m
80 km
951 m
treesgrasslandcroplandartificial surfaceswaterwetland
July weather nearby: Pezinok 13 km · Vrakuňa 17 km · Podunajské Biskupice 17 km · Trnava 22 km · Petržalka 23 km · Bratislava 23 km · Staré Mesto 24 km · Galanta 24 km

Slovakia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / E / F
230 V · 50 Hz
Prices
≈ 58% of US
price level, 2025
GDP per capita
$28,544
2025
Happiness
6.3 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
1.1
per 100k, 2023
Road deaths
6.1
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 606
Religion
Roman Catholic 56%none 24%Evangelical Church of the Augsburg Confession 5%Greek Catholic 4%

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 Senec (48.2195°, 17.4004°, elevation 127 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).