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Rosario Weather by Month
Average temperatures, rainfall and humidity for Rosario, Philippines, month by month, built from OpenWeather’s historical records. Use it to see what a typical Rosario month looks like before you travel — then check the live Rosario forecast for the days ahead.
Warmest month
May
34°C average high
Coolest month
January
24°C average low
Wettest month
September
157 mm of rain
Driest month
February
18 mm of rain
Average temperature and rainfall in Rosario by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 30°C | 24°C | 19°C / 33°C | 21 mm | 75% | 13 km/h |
| February | 30°C | 24°C | 20°C / 34°C | 18 mm | 73% | 13 km/h |
| March | 32°C | 25°C | 21°C / 35°C | 22 mm | 69% | 13 km/h |
| April | 34°C | 27°C | 20°C / 37°C | 21 mm | 68% | 12 km/h |
| May | 34°C | 27°C | 24°C / 38°C | 69 mm | 72% | 11 km/h |
| June | 33°C | 26°C | 23°C / 39°C | 113 mm | 81% | 11 km/h |
| July | 32°C | 26°C | 22°C / 36°C | 139 mm | 85% | 12 km/h |
| August | 31°C | 26°C | 20°C / 35°C | 150 mm | 86% | 14 km/h |
| September | 31°C | 26°C | 23°C / 35°C | 157 mm | 86% | 11 km/h |
| October | 31°C | 26°C | 22°C / 35°C | 126 mm | 83% | 11 km/h |
| November | 31°C | 25°C | 20°C / 35°C | 52 mm | 80% | 11 km/h |
| December | 30°C | 25°C | 22°C / 34°C | 70 mm | 80% | 12 km/h |
Best time to visit Rosario
The most comfortable time to visit Rosario is generally January to March, balancing mild daytime temperatures against the driest stretch of the year. Temperatures stay fairly even all year and rain concentrates around September, totalling about 959 mm a year.
Travellers who prefer heat should aim for May, when highs average 34°C. September is the month to avoid if rain would spoil your plans — it averages 157 mm, roughly 9× the rainfall of the driest month (February).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Rosario forecast for what is happening now.
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