Portlaoise in Spring
In spring (March, April and May), Portlaoise sees average daytime highs around 12°C and overnight lows near 5°C, with 187 mm of precipitation over about 37 wet days across the season. It is the 3rd-warmest season and the driest season of the year.
Over the season highs climb from about 9°C in early March to 16°C by late May. The sky is clear or mostly clear about 9% of the time across spring, and the air most often feels dry.
Spring is Portlaoise's 3rd-best season to visit on our travel score. For the whole year in context, see Portlaoise's year-round climate.
- Avg daytime high
- 12°C
- 3rd-warmest season
- Avg overnight low
- 5°C
- Precipitation
- 187 mm
- 37 wet days
- Avg wind
- 14 km/h
- Travel score
- 3.0
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in Portlaoise in Spring
Over the season highs climb from about 9°C in early March to 16°C by late May.
A typical spring day in Portlaoise reaches about 12°C and drops to 5°C overnight. The warmest of the three months is May, the coolest March.
How spring really feels in Portlaoise
Once humidity and wind are folded in, spring brings about 0 days that feel above 32°C and 13 that feel at or below 0°C.
The story in spring is cold — wind chill drags the overnight "feels like" below the raw low.
Portlaoise weather by month
How the three spring months (March, April and May) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 8° / 3° | 71 | 13.3 | 0.6 | 7.9 | 1.1 |
| Feb | 8° / 3° | 59 | 11.7 | 0.9 | 9.5 | 1.2 |
| Mar | 10° / 4° | 60 | 12.2 | 0.7 | 11.5 | 2.0 |
| Apr | 12° / 5° | 63 | 12.6 | 0.1 | 13.6 | 2.9 |
| May | 15° / 7° | 64 | 12.6 | 0 | 15.5 | 4.0 |
| Jun | 17° / 10° | 70 | 12.1 | 0 | 16.6 | 5.0 |
| Jul | 19° / 12° | 66 | 12.5 | 0 | 16.2 | 5.3 |
| Aug | 18° / 12° | 74 | 12.6 | 0 | 14.5 | 5.3 |
| Sep | 16° / 10° | 62 | 10.9 | 0 | 12.4 | 4.8 |
| Oct | 13° / 7° | 78 | 12.7 | 0 | 10.3 | 3.3 |
| Nov | 10° / 5° | 79 | 12.4 | 0.1 | 8.4 | 2.0 |
| Dec | 8° / 3° | 79 | 13.6 | 0.6 | 7.4 | 1.2 |
Cloud cover in Spring
The sky is clear or mostly clear about 9% of the time across spring.
Chance of precipitation in Spring
Portlaoise gets around 187 mm of rain and snow over 37 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 14 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 10 h 24 min in early March to 16 h 18 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 3.7 kWh/m².
Is spring a good time to visit Portlaoise?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a weaker month for outdoor sightseeing in Portlaoise.
What to pack for Portlaoise in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Portlaoise sees daytime highs around 12°C and nights near 5°C. Pack a warm layer. Worth having: rain gear and sun protection. About 37 days see rain.
UV index in Portlaoise in Spring
Clear-sky midday UV across spring averages around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Portlaoise 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 1 | 3 | 4 | 5 | 5 | 5 | 6 | 4 | 2 | 1 | 1 |
| Level | Low | Low | Moderate | Moderate | High | High | High | High | Moderate | Low | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 1 | Low |
| Mar | 3 | Moderate |
| Apr | 4 | Moderate |
| May | 5 | High |
| Jun | 5 | High |
| Jul | 5 | High |
| Aug | 6 | High |
| Sep | 4 | Moderate |
| Oct | 2 | Low |
| Nov | 1 | Low |
| Dec | 1 | Low |
Where is Portlaoise?
Portlaoise sits at 53.0°N, 7.3°W, 101 m above sea level, in Ireland. The nearest listed city is Tullamore, 29 km away.
Topography around Portlaoise
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Portlaoise.
Within 3 km, the terrain around Portlaoise has only modest variations in elevation — a maximum elevation change of 55 m around an average of 101 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 453 m; within 80 km, large variations in elevation — a maximum elevation change of 931 m.
The land around Portlaoise is covered by grassland (62%) within 3 km, grassland (68%) within 16 km, and grassland (76%) within 80 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
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 Portlaoise (53.0344°, -7.2998°, elevation 101 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.