Monrovia weather in August
August in Monrovia: hot, soaked, with clean air — a fair time to visit.
#10 of 12 months in Monrovia · #530 of 604 destinations to visit in August · comfort 54/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Monrovia climate normals — August
| Daytime high | 27°C / 80°F | 🥵 hot |
|---|---|---|
| Nighttime low | 23°C / 74°F | |
| Feels like (high) | 31°C / 88°F | |
| Rainfall | 497 mm / 19.6 in | ⛈ soaked |
| Rainy days | 27 days | |
| Humidity | 88% | 💦 very humid |
| Dew point | 23°C / 73°F | |
| Sunshine | 7.4 h/day | |
| Daylight | 12.3 h | |
| Wind | 17 km/h / 10 mph | |
| Air quality (US AQI) | 41 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Monrovia in August — FAQ
- Is August a good time to visit Monrovia?
- August in Monrovia: hot, soaked, with clean air — a fair time to visit. It ranks #10 of 12 months for Monrovia on SeasonMap's comfort score (54/100).
- What is the weather like in Monrovia in August?
- In August, Monrovia averages a daily high of 26.8°C and a low of 23.4°C, with about 497.2 mm of rain over roughly 27.2 rainy days.
- What is the air quality in Monrovia in August?
- Monrovia has a mean US Air Quality Index of about 41 in August.