Weather in Liberia in March
Costa Rica · 20-year averages, March
A hard month. March asks something of you. Go in knowing what. Daytime highs average 35.2 °C and the afternoon is not negotiable — outdoor plans move to early morning or evening.
March ranks 10 of 12 — near the bottom of Liberia's year. December is the month that works, and the swing between the two is 41 points, which is a different holiday rather than a slightly better one.
Rain falls on only 1 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for heat management rather than style: shade, water, and a schedule that gives up on the middle of the day.
What the averages hide
Averages flatten a month, and this one hides a few things: 19 days clear 35 °C, so a serious heatwave is normal rather than notable. Across the twenty years measured, the hottest March day reached 38 °C and the coldest night fell to 20.4 °C.
March is dependably dry, and that reliability is the point: across the twenty years measured, the wettest March on record still only managed 18 mm, and the driest managed 0 mm. There is no meaningful variability to plan around, which makes this one of the few months anywhere that you can build a fixed outdoor itinerary against without a fallback. The wettest single day in twenty years of Marchs brought 6 mm. Rain simply is not the variable that decides this trip — heat, crowds and cost are.
Wind is light at 14.3 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 59%.
How March sits in the year
Temperatures hold steady either side: 33.8 °C in February, 35.2 here, 35.5 in April. Nothing about the timing within the month matters much. Rain is the thing that moves: April brings 5 days more of it, so the earlier half of a flexible trip is the safer half.
Daylight in March
Liberia sits close enough to the equator that daylight barely moves all year — 12.1 hours in March, against a range of just 1.2 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.
An inland climate
Despite being inland, the year stays fairly even: 12.7 °C between the year's warmest afternoons and coldest nights.
How busy it gets
Off season. The genuine off season: cheapest by a distance, with the caveat that some tours and restaurants close entirely.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
March in Liberia versus nearby
If Liberia is one option among several, the nearby comparison is worth making. Puntarenas is close enough to be a coin toss — within a degree on temperature, 1 day more rain. San José is a better bet in March — 7.3 °C cooler, 6 days more rain.
So: March is a compromise. December is 33 points better and is what Liberia is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.
Every month in Liberia
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 32.1 | 22.8 | 1 | 4 | 69 | 11.6 | 75 |
| February | 33.8 | 23.1 | 0 | 3 | 63 | 11.8 | 69 |
| March | 35.2 | 23.7 | 1 | 4 | 59 | 12.1 | 48 |
| April | 35.5 | 24.8 | 6 | 29 | 60 | 12.4 | 48 |
| May | 32.6 | 25.2 | 22 | 222 | 73 | 12.6 | 40 |
| June | 29.8 | 24.6 | 25 | 226 | 83 | 12.7 | 50 |
| July | 30.2 | 24.3 | 23 | 165 | 82 | 12.7 | 49 |
| August | 30.4 | 24.4 | 23 | 222 | 81 | 12.5 | 49 |
| September | 29.4 | 24.3 | 28 | 317 | 84 | 12.2 | 51 |
| October | 28.5 | 24 | 27 | 359 | 87 | 11.9 | 52 |
| November | 28.8 | 23.2 | 15 | 163 | 85 | 11.6 | 59 |
| December | 30.1 | 22.8 | 3 | 17 | 79 | 11.5 | 81 |
See all twelve months in Liberia, or where else to go in March.
Planning the rest of the trip
- Flight time to Liberia how long you are actually in the air
- Liberia time zone and the difference from home
- Days until your trip count down to the departure date