Weather in Saint Louis: April
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Average day temperature: | 84.1°F |
| Average night temperature: | 68.7°F | |
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Sea water temperature: | 65.4°F |
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Number of sunny days: | 29 days |
| Day length: | 12.3 - 12.7 hours | |
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Number of rainy days: | 0 days |
| Precipitation totals: | 0.0 in. | |
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forecast
| Saint Louis |
temperature
| Saint Louis |
Air temperature in April, °F
| Day temperature | Night temperature |
The highest day temperature during April of 2025 was 79°F. At the same time the lowest night temperature was 63°F. Daily and nightly averages during April were 72.6°F and 67.0°F.
Sea water temperature in Saint Louis in April, °F
The average sea water temperature in April of 2025 was 68.3°F. The highest and lowest sea temperatures during the month were 70.7°F and 66.2°F.
| Sunny days | |
| Partly cloudy days | |
| Cloudy days |
Almost all days of April in Saint Louis are sunny. Cloudy days are rare.
Precipitation total in April, in.
Precipitation total value in Saint Louis in April is 0.0 in. Other months of the year show relatively similar values.
The average wind speed value in April is 16.1 mph It makes April most windy month of the year.
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in April is: 11.9.
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Saint Louis on a weather map
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