Climate Chart of Old Port of Talamanca, Costa Rica

Climate overview

Temperature

Monthly mean temperatures are 23.8 °C in January and 25.5 °C in both May / September. These figures describe the average temperature for each month, not daytime highs, and the recorded extremes therefore do not indicate the full range visitors might experience from day to day. The unweighted mean of the monthly temperature means is 24.8 °C. It is a summary of the calendar-month means rather than a day-weighted annual average, and should not be read as a forecast for any particular visit.

Rain

Mean daily rainfall reaches its highest monthly level, 14.11 mm/day, in July. Visitors then may wish to prepare for wet-weather interruptions with adaptable plans and rain protection; the figure is a daily mean, not a monthly total or a measure of how often rain falls. For travellers prioritising lower average rainfall, March is the conditional option in this record, with the lowest monthly mean daily rainfall at 4.20 mm/day. That average does not guarantee dry days, and it does not establish the frequency or timing of rain. Across the monthly means, the unweighted mean daily rainfall is 8.71 mm/day. This is not a monthly accumulation, so it is best used as broad context alongside the month-specific figures rather than as a prediction for a particular date.

Sunshine

Mean daily sunshine is highest in February, at 10.27 hours/day, and lowest in July, at 7.58 hours/day. Visitors planning outdoor sightseeing around brighter average conditions may use the higher-sunshine month as a guide, while allowing for day-to-day variation; sunshine duration is not the same as day length. The unweighted mean of the monthly sunshine means is 9.02 hours/day per day. It offers an overall reference across the calendar months, but does not say how sunshine will be distributed during an individual stay.