Best time to visit Dublin: month-by-month weather (2026)
The highest-scoring months in Dublin are Jun, Jul and Aug.
Best months
Jun, Jul and Aug
Peak season
Jun, Jul and Aug
Off season
Jan, Feb and Dec
Monthly Temperatures (°C)
Monthly Rainfall (mm)
Month-by-Month Guide
Temperature, rainfall and sunshine are measured. The visit score below is derived from those three (design spec §5.3)estimate.
Jan
Temp: 3.7°C – 8.1°C
Rain: 77mm
Sunshine: 4.1h/day
Visit score: 3.1/10
Feb
Temp: 5.3°C – 10°C
Rain: 55mm
Sunshine: 4.4h/day
Visit score: 3.2/10
Mar
Temp: 5.5°C – 10.7°C
Rain: 97mm
Sunshine: 6.4h/day
Visit score: 4.2/10
Apr
Temp: 6.8°C – 12.5°C
Rain: 115mm
Sunshine: 8.9h/day
Visit score: 4.7/10
May
Temp: 9.7°C – 15.8°C
Rain: 50mm
Sunshine: 11.4h/day
Visit score: 5.6/10
Jun
BestTemp: 12°C – 18.1°C
Rain: 75mm
Sunshine: 11.6h/day
Visit score: 7.6/10
Jul
BestTemp: 12.9°C – 18.8°C
Rain: 119mm
Sunshine: 9.8h/day
Visit score: 6.7/10
Aug
BestTemp: 13.3°C – 19.5°C
Rain: 86mm
Sunshine: 10.2h/day
Visit score: 6.7/10
Sep
Temp: 11.2°C – 16.9°C
Rain: 116mm
Sunshine: 7.6h/day
Visit score: 6.5/10
Oct
Temp: 9.8°C – 14.3°C
Rain: 105mm
Sunshine: 5.6h/day
Visit score: 4/10
Nov
Temp: 6.7°C – 11°C
Rain: 91mm
Sunshine: 4.2h/day
Visit score: 3.7/10
Dec
Temp: 6.2°C – 10°C
Rain: 91mm
Sunshine: 3.2h/day
Visit score: 3.5/10
When to go, and when not to
June, July, and August stand out as the best months to visit Dublin, carrying the highest visit scores of the year. June brings a high of 18.1C, a low of 12.0C, and 11.6 hours of sunshine per day, July reaches a high of 18.8C with 9.8 hours of sunshine, and August posts the warmest average high of the year at 19.5C with 10.2 hours of sunshine.
These same three months make up the peak season, so travelers should expect the summer weather to come with more visitors and higher demand for lodging. July is also the wettest of the three at 119mm of rain, close to April's 115mm and September's 116mm, so some rain is likely even during the sunniest stretch of the year, while the off-season months of January, February, and December bring cooler temperatures, such as January's high of just 8.1C, in exchange for quieter conditions.
Season Guide
Spring
March – May
Mild temperatures and blooming gardens. A great time for sightseeing with fewer crowds than summer.
Packing tips
- · Light layers
- · Rain jacket
- · Comfortable walking shoes
Summer
June – August
Warmest months with the longest days. Peak tourist season in most destinations.
Packing tips
- · Sunscreen
- · Hat
- · Light clothing
- · Refillable water bottle
Autumn
September – November
Cooling temperatures and autumn foliage. Shoulder season with good deals on accommodations.
Packing tips
- · Medium layers
- · Sweater
- · Waterproof jacket
Winter
December – February
Coldest months with shorter days. Holiday markets and winter activities in many cities.
Packing tips
- · Warm coat
- · Scarf and gloves
- · Thermal layers
- · Waterproof boots
Keep reading
Sources
- GeoNames city database — CC BY 4.0, fetched June 11, 2026
- Open-Meteo climate archive — CC BY 4.0, fetched September 21, 2026
AI-written interpretation reviewed against the data above — claude-sonnet-5, generated September 21, 2026. Every number on this page comes from a dataset named here; the formulas are public.