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What's the weather like Costa Rica in September?
On average, it is maximum 23° in September in Costa Rica and at least around 17° degrees. In September there are 30 days of rainfall with a total of 315 mm
| Maximum temperature: | 23°C |
| Minimum temperature: | 17°C |
| Dry days: | 0 days |
| Days with rain: | 30 days |
| Days with snow: | 0 days |
| Total rain: | 315 mm |
| Hours of sunshine: | 7 hours |
| Average wind force: | 1 Bft |
| Average UV index: | 5 |
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Average weather per day in September
| Weather | Max | Min | Rain | Snow | Wind | |
|---|---|---|---|---|---|---|
| 1 september |  |
26.9°C | 18.8°C | 2.8 mm | 0.0 cm | ZZO 4 Bft |
| 2 september | |
26.9°C | 19.0°C | 6.1 mm | 0.0 cm | ZO 4 Bft |
| 3 september | |
27.1°C | 18.8°C | 6.0 mm | 0.0 cm | ZZO 4 Bft |
| 4 september | |
26.7°C | 18.7°C | 3.3 mm | 0.0 cm | ZZO 4 Bft |
| 5 september | |
27.1°C | 18.7°C | 7.2 mm | 0.0 cm | ZZO 4 Bft |
| 6 september | |
27.0°C | 18.6°C | 4.3 mm | 0.0 cm | ZZO 4 Bft |
| 7 september | |
27.5°C | 18.6°C | 8.7 mm | 0.0 cm | ZZO 4 Bft |
| 8 september | |
27.0°C | 19.0°C | 6.4 mm | 0.0 cm | ZO 4 Bft |
| 9 september | |
27.0°C | 18.6°C | 4.5 mm | 0.0 cm | ZZO 4 Bft |
| 10 september | |
26.8°C | 18.6°C | 14.7 mm | 0.0 cm | ZZO 4 Bft |
| 11 september | |
26.8°C | 18.6°C | 2.8 mm | 0.0 cm | ZZO 4 Bft |
| 12 september |  |
26.9°C | 18.6°C | 2.2 mm | 0.0 cm | ZZO 4 Bft |
| 13 september | |
27.2°C | 18.8°C | 6.1 mm | 0.0 cm | Z 4 Bft |
| 14 september | |
26.4°C | 19.1°C | 2.0 mm | 0.0 cm | ZZO 4 Bft |
| 15 september | |
26.7°C | 18.9°C | 3.4 mm | 0.0 cm | ZZO 4 Bft |
| 16 september | |
26.7°C | 18.9°C | 4.9 mm | 0.0 cm | ZZO 4 Bft |
| 17 september | |
27.0°C | 18.7°C | 6.4 mm | 0.0 cm | Z 4 Bft |
| 18 september | |
27.0°C | 19.0°C | 8.2 mm | 0.0 cm | Z 4 Bft |
| 19 september | |
26.9°C | 18.8°C | 10.3 mm | 0.0 cm | ZZO 4 Bft |
| 20 september | |
26.7°C | 18.8°C | 2.9 mm | 0.0 cm | Z 4 Bft |
| 21 september | |
26.7°C | 18.9°C | 13.8 mm | 0.0 cm | Z 4 Bft |
| 22 september | |
26.4°C | 18.3°C | 4.1 mm | 0.0 cm | ZZO 4 Bft |
| 23 september | |
26.4°C | 18.7°C | 7.6 mm | 0.0 cm | Z 4 Bft |
| 24 september | |
26.9°C | 18.7°C | 2.9 mm | 0.0 cm | Z 4 Bft |
| 25 september | |
26.1°C | 18.9°C | 3.4 mm | 0.0 cm | ZZO 4 Bft |
| 26 september | |
26.8°C | 18.2°C | 7.8 mm | 0.0 cm | Z 4 Bft |
| 27 september | |
26.7°C | 18.6°C | 2.9 mm | 0.0 cm | Z 4 Bft |
| 28 september | |
26.7°C | 18.8°C | 11.1 mm | 0.0 cm | Z 4 Bft |
| 29 september | |
26.2°C | 19.0°C | 12.4 mm | 0.0 cm | Z 4 Bft |
| 30 september | |
26.5°C | 18.9°C | 7.8 mm | 1.0 cm | Z 4 Bft |