What to expect in Costa Rica in October
October is usually the wrong time for Costa Rica: 28° / 21°. Consider January · March instead.
Costa Rica weather in October
Typical conditions in Costa Rica during October, based on long-run climate normals rather than any single year. Treat it as a planning guide, not a forecast.
| Average high | 28°C 82°F |
|---|---|
| Average low | 21°C 70°F |
| Rainfall | Wet 80/100 |
| Total rainfall | 326 mm12.8 in |
| Sea temperature | 28°C 83°F |
| Daylight | 11 h 55 min |
| How it feels | Warm and comfortable |
Rainfall figures are for San José.
Average highs sit around 28°C with lows near 21°C. Expect a fair amount of rain, so plan indoor backups.
Crowds & demand
Crowd levels are Low for Costa Rica — plenty of space at the main sights.
Prices & value
This month counts as low season: some of the best deals of the year.
What to pack
Light layers for 28°C days and something with sleeves for evenings, which cool to around 21°C. Add a compact rain shell and shoes you do not mind soaking; this is one of the wetter months.
What it costs
This is one of the cheaper months to visit Costa Rica. Flights and accommodation sit near their yearly floor, and you can usually book late without being punished for it. Compared with the most expensive month of the year, you are looking at roughly 56% less.
Who this month suits
- Anyone travelling on a budget
- People who would rather have space than perfect conditions
Events & what’s on
No major festivals fall in October, so the destination feels like its everyday self.
Costa Rica in October compared with nearby months
If your dates are flexible by a few weeks, this is what shifting them actually buys you.
| Month | Temp | Crowds | Price | Score |
|---|---|---|---|---|
| August | 29° / 21° | Low | $ | 64 |
| September | 28° / 21° | Low | $ | 67 |
| October · This month | 28° / 21° | Low | $ | 66 |
| November | 29° / 21° | Moderate | $$ | 62 |
| December | 30° / 20° | High | $$ | 53 |
These months score higher for Costa Rica on the same blend of weather, crowds and price. Same destination, better odds.
Or go somewhere else in October
If the destination is negotiable but the month is not, these places are at their best in October.
Figures are climate normals and modelled estimates — a planning guide, not a forecast. We separate fact, estimate and recommendation. Updated October 2026
