Rathfarnham weather in July

In July, Rathfarnham sees average daytime highs of 18°C and overnight lows near 12°C, with 76 mm of rain across 14.8 wet days and about 16.2 hours of daylight. It is the 1st-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 18°C through the month. The sky is clear or mostly clear about 5% of the time in July, and the air most often feels dry.

Daylight stretches from about 16 h 42 min at the start of July to 15 h 36 min by month's end. Set against the rest of the year, July is Rathfarnham's 12th-clearest and 12th-windiest month. For the whole year in context, see Rathfarnham's year-round climate.

Daytime high
18°
1st warmest
Overnight low
12°
12th coldest
Rainfall
76 mm
14.8 wet days
Daylight
16 h 18 min
4:23 AM – 8:39 PM
Cloud cover
80%
12th clearest
Wind
14 km/h
12th windiest
Solar energy
4.77 kWh/m²
Travel score
4.9
out of 10

Rathfarnham is human settlement.

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 18°C through the month.

A typical July day in Rathfarnham reaches about 18°C in the afternoon and slips back to 12°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 21°C. Set against its neighbours, July runs about 2°C warmer than June and on par with August.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11712
21712
31712
41712
51712
61812
71812
81812
91812
101812
111812
121812
131812
141812
151812
161812
171812
181812
191812
201813
211813
221813
231813
241813
251813
261813
271813
281813
291813
301813
311813

How July really feels in Rathfarnham

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.

Rathfarnham weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6913.20.97.81.0
Feb / 5711.81.29.41.1
Mar / 5912.21.111.51.7
Apr11° / 6613.80.113.72.4
May14° / 6613.6015.63.5
Jun16° / 10°7313.2016.64.5
Jul18° / 12°7614.8016.24.9
Aug18° / 12°7813.7014.65.1
Sep16° / 10°7012.3012.44.5
Oct13° / 7812.4010.33.2
Nov10° / 8513.20.38.41.9
Dec / 7612.90.87.41.2

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% of the time in July, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 11% of July, with mostly cloudy or overcast conditions the remaining 83%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11882
21882
31882
41882
51882
61882
71783
81783
91783
101783
111783
121783
131783
141783
151783
161783
171783
181783
191783
201783
211684
221684
231684
241585
251684
261684
271684
281684
291783
301783
311783

Chance of precipitation in July

Any precipitation

Rathfarnham gets around 76 mm of rain over 14.8 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 48% and peaks near 50% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
147
248
348
448
549
649
749
849
949
1048
1148
1248
1348
1448
1548
1647
1747
1847
1947
2047
2147
2247
2347
2447
2548
2648
2749
2849
2949
3050
3150

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 67% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
178211
277221
377221
476231
575241
674251
773252
872262
971272
1071272
1170282
1270282
1368293
1468293
1567303
1667303
1765314
1864324
1964324
2063334
2162344
2262344
2361354
2461354
2561354
2661354
2760364
2860364
2960364
3060364
3160364

Wind in July

Winds average 14 km/h in July, the calmest month.

Across July, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light 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 July

DaylightNight

Daylight runs from about 16 h 42 min at the start of July to 15 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over July. Sunrise moves from 4:08 AM to 4:45 AM, and sunset from 8:49 PM to 8:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
116.74:088:49
216.74:098:48
316.64:108:48
416.64:108:48
516.64:118:47
616.64:128:47
716.64:138:46
816.54:148:46
916.54:158:45
1016.54:168:44
1116.44:178:43
1216.44:188:43
1316.44:198:42
1416.34:208:41
1516.34:228:40
1616.34:238:39
1716.24:248:38
1816.24:258:36
1916.14:278:35
2016.14:288:34
2116.14:298:33
2216.04:318:31
2316.04:328:30
2415.94:348:29
2515.94:358:27
2615.84:378:26
2715.84:388:24
2815.74:408:23
2915.74:418:21
3015.64:438:19
3115.64:458:18

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 4.77 kWh/m².

For context, solar energy here swings from a low near 0.56 kWh/m² to a high of 5.27 kWh/m² in June across the year — July's 4.77 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
64.9Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.7Bright
224.7Bright
234.7Bright
244.7Bright
254.6Bright
264.6Bright
274.5Bright
284.5Bright
294.5Bright
304.5Bright
314.4Bright
Planning a trip in July

Is July a good time to visit Rathfarnham?

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

4.9
Sightseeing
2nd-best month of the year
1.6
Beach & pool
1st-best month of the year

July is a reasonable time to visit Rathfarnham for sightseeing.

What to pack for Rathfarnham in July

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

In July, Rathfarnham sees daytime highs around 18°C and nights near 12°C. Pack rain gear. Worth having: sun protection. About 15 days see rain.

rain gearsun protection

Sea temperature near Rathfarnham in July

The nearest coast averages about 15°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 13 km away) is warmest in August at about 15°C and coldest in March near 8°C.

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

10°15°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan9Bracing
Feb8Bracing
Mar8Bracing
Apr9Bracing
May11Bracing
Jun13Bracing
Jul15Bracing
Aug15Cool
Sep15Bracing
Oct13Bracing
Nov12Bracing
Dec11Bracing

UV index in Rathfarnham in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July 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 Rathfarnham peaks around August 13 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowAug 13UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May5High
Jun6High
Jul5High
Aug6High
Sep4Moderate
Oct2Low
Nov1Low
Dec1Low
Location & terrain

Where is Rathfarnham?

Rathfarnham sits at 53.3°N, 6.3°W, 49 m above sea level, in Ireland. The nearest listed city is Templeogue, 2.0 km away.

Topography around Rathfarnham

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

Within 3 km, the terrain around Rathfarnham has only modest variations in elevation — a maximum elevation change of 100 m around an average of 55 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 754 m; within 80 km, large variations in elevation — a maximum elevation change of 946 m.

The land around Rathfarnham is covered by artificial surfaces (53%) and trees (30%) within 3 km, grassland (36%), artificial surfaces (23%) and trees (21%) within 16 km, and grassland (52%) and water (27%) within 80 km.

3 km
100 m
16 km
754 m
80 km
946 m
treesgrasslandcroplandartificial surfaceswater
July weather nearby: Templeogue 2.0 km · South Dublin 4.0 km · Dublin 4.0 km · Sandyford 5.0 km · Tallaght 6.0 km · Dún Laoghaire 10 km · Finglas 10 km · Blanchardstown 12 km

Ireland travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type G
230 V · 50 Hz
Prices
≈ 85% of US
price level, 2025
GDP per capita
$131,592
2025
Happiness
6.9 / 10
World Happiness, 2025
Safe drinking water
96%
of population, 2024
Homicide rate
0.7
per 100k, 2023
Road deaths
3.1
per 100k/yr, 2019
Income group
High
World Bank
Religion
Roman Catholic 69%none 15%Protestant 4%Orthodox 2%

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 Rathfarnham (53.3006°, -6.2828°, elevation 49 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).