Average Weather during September in Alajuela (Alajuela), Costa Rica

The average minimum temperature (usually the minimum temperature is noted during the night) in Alajuela in September is 17.0°C (62.6°F). September falls in the rainy season with an average precipitation of 381mm (15.0in). September is the most wet month of the year. The average maximum temperature lies around 27.0°C (80.6°F). You will see the sun occasionally during this month, it has 147 hours of sun.

So what to wear in September? Visitors traveling to Alajuela should plan on bringing a totally waterproof rain jacket since it will often be raining. Also bring your shorts or a skirt because it can be very warm or even hot.

No idea where to travel to this year? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.

For other monthly average weather and what to do in September look at the numbers below.

Monthly Averages

Show in Celsius

Min Temperature 62 °F

Max Temperature 80 °F

Chance of Rain 80%

Precipitation 15 in

Rainy Days 24

Sunshine Hours 147

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in .

Swimming

7/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

More Climate Information For Alajuela

Weather and Climate offers all the information you need to know about the climate in Alajuela.

We collected past weather data from many thousand weather stations around the world. So find on this website the historical weather averages in other cities in Costa Rica and climate and forecast data for all other countries in the world.